# pdgfootnote

pdgid: Q007TT8
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AAD 2015A based on 20.3 fb**-1 of data, using a multivariate analysis to separate signal and backgrounds. The 95% CL upper bound of the cross section is 14.6 pb. The results are consistent with the SM prediction of 5.61+-0.22 pb at approximate NNLO.


pdgid: Q007STX
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AAD 2024AL based on 140 fb**-1 of data. The cross section ratio is measured to be CS(t q)/CS(tbar q) = 1.636+-0.036+-0.034. A lower limit |V_tb| > 0.95 (95% CL) is obtained. All results are in agreement with the SM. The measurements are used to constrain a four-quark operator and a Higgs-quark operator in SMEFT.


pdgid: Q007STX
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SIRUNYAN 2020D based on 35.9 fb**-1 of data. Different categories of jet and b jet multiplicity and multivariate discriminators are used to separate signal and background events. The cross section ratio is measured to be CS(t q)/CS(tbar q) = 1.68+-0.02+-0.05. CKM matrix element is obtained as |f(LV)V_tb| = 0.98+-0.07(exp)+-0.02(theo) where f(LV) is an anomalous form factor. All results are in agreement with the SM.


pdgid: Q007STX
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AABOUD 2017H based on 3.2 fb**-1 of data. A maximum-likelihood fit to neural-network discriminant distributions is used to separate signal and background events. The third error is for luminosity. The cross section ratio is measured to be CS(t q)/CS(tbar q) = 1.72+-0.09+-0.18. A lower limit |V_tb| > 0.84 (95% CL) is obtained. All results are in agreement with the SM.


pdgid: Q007STX
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SIRUNYAN 2017AA based on 2.2 fb**-1 of data. A multivariate discriminator is used to separate signal and background events. The four errors are from statitics, experimental systematics, theory, and luminosity. The cross section ratio is measured to be CS(t q)/CS(tbar q) = 1.81+-0.18+-0.15. CKM matrix element is obtained as |V_tb| = 1.05+-0.07(exp)+-0.02(theo). All results are in agreement with the SM.


pdgid: Q007TTX
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AAD 2023E based on 139 fb**-1 of data. The signal significance is 3.3sigma over the background-only hypothesis. The result is consistent with the NLO SM prediction of 10.32+0.40-0.36 pb.


pdgid: Q007THX
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AAD 2022Q based on 139 fb**-1 of data. The measured value includes B(H --> tau tau) and corresponds to the rapidity range |y(H)| <2.5. The value is consistent with the SM prediction, where B(H --> tau tau) = 6.3% for mass(H) = 125.09 GeV.


pdgid: Q007THX
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AABOUD 2018BK based on 79.8 fb**-1 of data. The observed significance is 5.8sigma relative to the background-only hypothesis. The measurement is consistent with the NLO SM prediction of 507+35-50 fb. See Table 3 and Fig. 5 for measurements of individual modes. Combined with the measurements at 7 and 8 TeV, the observed significance is 6.3sigma.


pdgid: Q007WT7
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Based on 4.9 fb**-1 of data. The result gives V(tb) = 1.01+0.16-0.13(exp)+0.03(th). V(tb) > 0.79 (95% CL) if V(tb) < 1 is assumed. The results assume mass(t) = 172.5 GeV for the acceptance.


pdgid: Q007WT8
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AAD 2021AT based on 20.2 fb**-1 of data. In this single lepton channel, only single neutrino is emitted, so that both W and t can be reconstructed. A neural network is trained to separate signal from background. The measured cross section agrees with the NLO+NNLL SM prediction of 22.4+-0.6(scale)+-1.4(PDF) pb.


pdgid: Q007WT8
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AAD 2016B based on 20.3 fb**-1 of data. The result gives |V_tb| = 1.01+-0.10 and |V_tb| > 0.80 (95% CL) without assuming unitarity of the CKM matrix. The results assume mass(t) = 172.5 GeV for the acceptance.


pdgid: Q007WT8
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Based on 12.2 fb**-1 of data. Events with two oppositely charged leptons, large notET and a b-tagged jet are selected, and a multivariate analysis is used to separate the signal from the backgrounds. The result is consistent with the SM prediction of 22.2+-0.6(scale)+-1.4(PDF) pb at approximate NNLO.


pdgid: Q007WTX
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AAD 2024BS based on 140 fb**-1 of data. The errors quoted are statistical, systematic, and the uncertainty from luminosity. The result is consistent with the NLO+NNLL SM prediction of 79.3+1.9-1.8(scale) +-2.2(PDF) pb.


pdgid: Q007WTX
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TUMASYAN 2023T based on 138 fb**-1 of data. The result is consistent with the NNLO SM prediction. The differential cross sections are measured as a function of six kinematical variables and are consistent with the NLO SM prediction.


pdgid: Q007WTX
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TUMASYAN 2021E based on 36 fb**-1 of data. A boosted decision tree is used to separate  the signal from the dominant t tbar backgrounds. The result corresponds to an observation with  a significance exceeding 5 sigma and is consistent with the NNLO QCD prediction of 71.7+-1.8(scale) +-3.4(PDF) pb or with the approximate NNNLO SM prediction of 79.5+1.9-1.8(scale) +2.0(PDF) pb.


pdgid: Q007WTX
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AABOUD 2018H based on 3.2 fb**-1 of data. The last error is from luminosity. A multivariate analysis is used to separate the signal from the backgrounds. The result is consistent with the NLO+NNLL SM prediction of 71.7+-1.8(scale) +-3.4(PDF) pb.


pdgid: Q007WTX
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SIRUNYAN 2018DL based on 35.9 fb**-1 of data. The last error is from luminosity. A multivariate analysis is used to separate the signal from the backgrounds. The result is consistent with the NLO+NNLL SM prediction of 71.7+-1.8(scale) +-3.4(PDF) pb.


pdgid: Q007ZTX
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TUMASYAN 2022L based on 138 fb**-1 of data at 13 TeV. The result is for a dilepton invariant masses above 30 GeV. It agrees with the NLO SM  prediction of 94.2+1.9-1.8(scale)+-2.5(PDF) fb. The ratio of t and tbar production cross sections is measured as 2.37+0.56-0.42+0.27-0.13. The spin asymmetry is measured to be 0.54+-0.16+-0.06. Both measurements are in agreement with the SM predictions.


pdgid: Q007ZTX
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AAD 2020AB based on 139 fb**-1 of data at 13 TeV. Neural networks are used to discriminate t Z q signal from backgrounds. The result is for the cross section CS(p p --> t lepton+ lepton- q), including non-resonant dilepton pairs, for dilepton invariant masses above 30 GeV and is consistent with the NLO SM prediction of 102+5-2 fb.


pdgid: Q007ZTX
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SIRUNYAN 2019BF based on 77.4 fb**-1 of data. Two BDT's are used in the analysis: one to discriminate prompt leptons from non-prompt ones; and one to discriminate t Z q signal from backgrounds. The result is for the cross section CS(p p --> t Z q --> t lepton+ lepton- q) for dilepton invariant masses above 30 GeV and is consistent with the NLO SM prediction of 94.2+-3.1 fb.


pdgid: Q007ZTX
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AABOUD 2018AE based on 36.1 fb**-1 of data. A multivariate analysis is used to separate the signal from the backgrounds. The result is consistent with the NLO SM prediction of 800 fb with a scale uncertainty of +6.1%.


pdgid: Q007ZTX
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SIRUNYAN 2018Z based on 35.9 fb**-1 of data. A multivariate analysis is used to separate the signal from the backgrounds. The result is for the cross section CS(p p --> t Z q --> W b lepton+ lepton- q) and is consistent with the NLO SM prediction of 94.2+1.9-1.8(scale) +-2.5(PDF) fb. Superseded by SIRUNYAN 2019BF.


pdgid: Q007GTX
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AAD 2023BN measured fiducial cross section for p p --> t gamma at 13 TeV with 139 fb**-1 of data. The measured cross section is 688+-23+75-71 fb, to be compared with the NLO SM prediction of 515+36-42 fb.


pdgid: Q007A08
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Reported a statistical significance of 3.4 standard deviations based on 138 fb**-1 of data at 13 TeV.


pdgid: Q007STE
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AARON 2009A looked for single top production via FCNC in e+- p collisions at HERA with 474 pb**-1 of data at sqrt(s) = 301 -- 319 GeV. The result supersedes that of AKTAS 2004.


pdgid: Q007STE
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AKTAS 2004 looked for single top production via FCNC in e+- collisions at HERA with 118.3 pb**-1, and found 5 events in the e or mu channels while 1.31+-0.22 events are expected from the Standard Model background. No excess was found for the hadronic channel. The observed cross section of sigma(e p --> e t X) = 0.29+0.15-0.14~pb at sqrt(s) = 319~GeV gives the quoted upper bound if the observed events are due to statistical fluctuation.


pdgid: Q007STE
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CHEKANOV 2003 looked in 130.1 pb**-1 of data at sqrt(s) = 301 and 318 GeV. The limit is for sqrt(s) = 318 GeV and assumes mass(t) = 175 GeV.


pdgid: Q007TX
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ABAZOV 2016F based on 9.7 fb**-1 of data. The result is for mass(t) = 172.5 GeV, and the mass(t) dependence is shown in Table V and Fig. 9. The result agrees with the NNLO+NNLL SM prediction of 7.35+0.23-0.27 pb.


pdgid: Q007TX
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Based on 9 fb**-1 of data. The measurement is in the channel t tbar --> ( b lepton nu ) ( b tau nu ), where tau decays into hadrons (tau_{{h}}), and lepton (e or mu) include lepton from tau decays (tau_{{{{mathit ell}}}}). The result is for mass(t) = 173 GeV.


pdgid: Q007TX
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Based on 8.8 fb**-1 of data. Combination of CDF and D0 measurements given, respectively, by CS(ttbar; CDF) = 7.63+-0.31+-0.36+-0.16 pb, CS(ttbar; D0) = 7.56+-0.20+-0.32+-0.46 pb. All the results are for mass(t) = 172.5 GeV. The mass(t) dependence of the mean value is parametrized in eq. (1) and shown in Fig. 2.


pdgid: Q007TX
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Based on 9.7 fb**-1 of data. Differential cross sections with respect to, |y(top)|, E(T)(top) are shown in Figs. 9, 10, 11, respectively, and are compared to the predictions of MC models.


pdgid: Q007TX
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Based on 8.7 fb**-1 of p pbar collisions at sqrt(s) = 1.96 TeV. Measure the t tbar cross section simultaneously with the fraction of t --> W b decays. The correlation coefficient between those two measurements is -0.434. Assume unitarity of the 3x3 CKM matrix and set |V_tb| > 0.89 at 95% CL.


pdgid: Q007TX
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Based on 2.2 fb**-1 of data in p pbar collisions at 1.96 TeV. The result assumes the acceptance for mass(t) = 172.5 GeV.


pdgid: Q007TX
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Based on 1.12 fb**-1 and assumes mass(t) = 175 GeV, where the cross section changes by +-0.1 pb for every -+1 GeV shift in mass(t). AALTONEN 2011D fits simultaneously the t tbar production cross section and the b-tagging efficiency and find improvements in both measurements.


pdgid: Q007TX
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Based on 2.7 fb**-1. The first error is from statistics and systematics, the second is from luminosity. The result is for mass(t) = 175 GeV. AALTONEN 2011W fits simultaneously a jet flavor discriminator between b-, c-, and light-quarks, and find significant reduction in the systematic error.


pdgid: Q007TX
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Based on 2.2 fb**-1. The result is for mass(t) = 172.5 GeV. AALTONEN 2011Y selects multi-jet events with large notET, and vetoes identified electrons and muons.


pdgid: Q007TX
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Based on 5.3 fb**-1. The error is statistical + systematic + luminosity combined. The result is for mass(t) = 172.5 GeV. The results for other mass(t) values are given in Table XII and eq.(10) of ABAZOV 2011E.


pdgid: Q007TX
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Combination of a dilepton measurement presented in ABAZOV 2011Z (based on 5.4 fb**-1), which yields 7.36+0.90-0.79 (stat+syst) pb, and the lepton + jets measurement of ABAZOV 2011E. The result is for mass(t) = 172.5 GeV. The results for other mass(t) values is given by eq.(5) of ABAZOV 2011A.


pdgid: Q007TX
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Based on 2.9 fb**-1. Result is obtained from the fraction of signal events in the top quark mass measurement in the all hadronic decay channel.


pdgid: Q007TX
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Based on 1.7 fb**-1. The result is for mass(t) = 175 GeV. AALTONEN 2010V uses soft electrons from b-hadron decays to suppress W+jets background events.


pdgid: Q007TX
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Based on 4.6 fb**-1. The result is for mass(t) = 172.5 GeV. The ratio CS(t tbar --> lepton+jets) / CS(Z / gamma^*() --> lepton lepton) is measured and then multiplied by the theoretical Z / gamma^*() --> lepton lepton cross section of CS(Z / gamma^*() --> lepton lepton) = 251.3+-5.0 pb, which is free from the luminosity error.


pdgid: Q007TX
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Based on 1 fb**-1. The result is for mass(t) = 175 GeV. 7.9+-2.3 pb is found for mass(t) = 170 GeV. ABAZOV 2010I uses a likelihood discriminant to separate signal from background, where the background model was created from lower jet-multiplicity data.


pdgid: Q007TX
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Based on 1 fb**-1. The result is for mass(t) = 170 GeV. For mass(t) = 175 GeV, the result is 6.3+1.2-1.1(stat)+-0.7(syst)+-0.4(lumi) pb. Cross section of t tbar production has been measured in the t tbar --> tau_h + jets topology, where tau_{{h}} denotes hadronically decaying tau leptons. The result for the cross section times the branching ratio is CS(t tbar). B(t tbar --> tau_h + jets) = 0.60+0.23-0.22+0.15-0.14+-0.04 pb for mass(t) = 170 GeV.


pdgid: Q007TX
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Based on 1.1 fb**-1. The result is for B(W --> lepton nu) = 10.8% and mass(t) = 175 GeV; the mean value is 9.8 for mass(t) = 172.5 GeV and 10.1 for mass(t) = 170 GeV. AALTONEN 2009AD used high pT e or mu with an isolated track to select t tbar decays into dileptons including lepton = tau. The result is based on the candidate event samples with and without vertex b-tag.


pdgid: Q007TX
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Based on 2 fb**-1. The result is for mass(t) = 175 GeV; the mean value is 3% higher for mass(t) = 170 GeV and 4% lower for mass(t) = 180 GeV.


pdgid: Q007TX
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Result is based on 1 fb**-1 of data. The result is for mass(t) = 170 GeV, and the mean value decreases with increasing mass(t); see their Fig. 2. The result is obtained after combining lepton + jets, lepton lepton, and lepton tau final states, and the ratios of the extracted cross sections are R**lepton lepton / lepton j = 0.86+0.19-0.17 and R**lepton tau / lepton lepton - lepton j = 0.97+0.32-0.29, consistent with the SM expectation of R = 1. This leads to the upper bound of B(t --> b H+) as a function of mass(H+). Results are shown in their Fig. 1 for B(H+ --> tau nu) = 1 and B(H+ -->c sbar) = 1 cases. Comparison of the mass(t) dependence of the extracted cross section and a partial NNLO prediction gives mass(t) = 169.1+5.9-5.2 GeV.


pdgid: Q007TX
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Result is based on 1 fb**-1 of data. The result is for mass(t) = 170 GeV, and the mean value changes by -0.07 [mass(t)(GeV)-170] pb near the reference mass(t) value. Comparison of the mass(t) dependence of the extracted cross section and a partial NNLO QCD prediction gives mass(t) = 171.5+9.9-8.8 GeV. The lepton tau channel alone gives 7.6+4.9-4.3+3.5-3.4+1.4-0.9 pb and the lepton lepton channel gives 7.5+1.2-1.1+0.7-0.6+0.7-0.5 pb.


pdgid: Q007TX
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Result is based on 0.9 fb**-1 of data. The first error is from stat + syst, while the latter error is from luminosity. The result is for mass(t)=175 GeV, and the mean value changes by -0.09 pb.[mass(t)(GeV)-175].


pdgid: Q007TX
text:
Result is based on 0.9 fb**-1 of data. The cross section is obtained from the lepton + >=3 jet event rates with 1 or 2 b-tag, and also from the kinematical likelihood analysis of the lepton + 3, 4 jet events. The result is for mass(t)= 172.6 GeV, and its mass(t) dependence shown in Fig. 3 leads to the constraint mass(t) = 170+-7 GeV when compared to the SM prediction.


pdgid: Q007TX
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Result is based on 360 pb**-1 of data. Events with high pT oppositely charged dileptons lepton+ lepton- (lepton = e, mu) are used to obtain cross sections for t tbar, W+ W-, and Z --> tau+ tau- production processes simultaneously. The other cross sections are given in Table IV.


pdgid: Q007TX
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Based on 1.02 fb**-1 of data. Result is for mass(t) = 175 GeV. Secondary vertex b-tag and neural network selections are used to achieve a signal-to-background ratio of about 1/2.


pdgid: Q007TX
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Based on 425 pb**-1 of data. Result is for mass(t) = 175 GeV. For mass(t) = 170.9 GeV, 7.8+-1.8(stat + syst) pb is obtained.


pdgid: Q007TX
text:
Based on 405+-25 pb**-1 of data. Result is for mass(t) = 175 GeV. The last error is for luminosity. Secondary vertex b-tag and neural network are used to separate the signal events from the background.


pdgid: Q007TX
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Based on ~ 425 pb**-1. Assuming mass(t) = 175 GeV. The first error is combined statistical and systematic, the second one is luminosity.


pdgid: Q007TX
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Based on ~318 pb**-1. Assuming mass(t) = 178 GeV. The cross section changes by +-0.08 pb for each -+ GeV change in the assumed mass(t). Result is for at least one b-tag. For at least two b-tagged jets, t tbar signal of significance greater than 5sigma is found, and the cross section is 10.1+1.6-1.4+2.0-1.3 pb for mass(t) = 178 GeV.


pdgid: Q007TX
text:
Based on ~311 pb**-1. Assuming mass(t) = 178 GeV. For mass(t) = 175 GeV, the result is 6.0+-1.2+0.9-0.7. This is the first CDF measurement without lepton identification, and hence it has sensitivity to the W --> tau nu mode.


pdgid: Q007TX
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ABULENCIA,A 2006E measures the t tbar production cross section in the all hadronic decay mode by selecting events with 6 to 8 jets and at least one b-jet. S/B = 1/5 has been achieved. Based on 311 pb**-1. Assuming mass(t) = 178 GeV.


pdgid: Q007TX
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Based on ~318 pb**-1. Assuming mass(t) = 178 GeV. Result is for at least one b-tag. For at least two b-tagged jets, the cross section is 11.1+2.3-1.9+2.5-1.9 pb.


pdgid: Q007TX
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ABAZOV 2005Q measures the top-quark pair production cross section with ~230 pb**-1 of data, based on the analysis of W plus n-jet events where W decays into e or mu plus neutrino, and at least one of the jets is b-jet like. The first error is statistical and systematic, and the second accounts for the luminosity uncertainty. The result assumes mass(t) = 175 GeV; the mean value changes by (175-mass(t)(GeV)) x 0.06 pb in the mass range 160 to 190 GeV.


pdgid: Q007TX
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ABAZOV 2005R measures the top-quark pair production cross section with 224 -- 243 pb**-1 of data, based on the analysis of events with two charged leptons in the final state. The result assumes mass(t) = 175 GeV; the mean value changes by (175-mass(t)(GeV)) x 0.08 pb in the mass range 160 to 190 GeV.


pdgid: Q007TX
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ACOSTA 2005V measures the top-quark pair production cross section with ~162 pb**-1 data, based on the analysis of W plus n-jet events where W decays into e or mu plus neutrino, and at least one of the jets is b-jet like. Assumes mass(t) = 175 GeV.


pdgid: Q007TX
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ACOSTA 2004I measures the top-quark pair production cross section with 197+-12 pb**-1 data, based on the analysis of events with two charged leptons in the final state. Assumes mass(t) = 175 GeV.


pdgid: Q007TTA
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Based on 6.0 fb**-1 of data. The error is statistical and systematic combined. Events with lepton + notET + >=3 jets(>=1b) with and without central, high E(T) photon are measured. The result is consistent with the SM prediction of 0.024+-0.005. The absolute production cross section is measured to be 0.18+-0.08 fb. The statistical significance is 3.0 standard deviations.


pdgid: Q007TP7
text:
Based on 1.04 fb**-1 of p p data at sqrt(s) = 7 TeV. The upper bounds are the same for LL, LR and RR chiral components of the two top quarks.


pdgid: Q007TX5
text:
AAD 2023J based on 257 pb**-1 of data from p p collisions. The second error is the  sum of systematics (+-2.3), luminosity(+-1.1) and beam energy (+-0.2) uncertainties. The result agrees with the NNLO+NNLL SM prediction of 68.2+5.2-5.3 pb.


pdgid: Q007TX5
text:
TUMASYAN 2022T based on 302 pb**-1 of data from p p collisions at sqrt(s) = 5.02 TeV. The errors are from statistics, systematics and luminosity.


pdgid: Q007TX5
text:
Combination of the measurement by TUMASYAN 2022T and the measurement in the lepton+jets channel by SIRUNYAN 2018AQ. The errors are from statistics and systematics + luminosity. The result is in agreement with the NNLO+NNLL SM prediction 66.8+2.9-3.1 pb.


pdgid: Q007TX5
text:
SIRUNYAN 2018AQ based on 27.4 pb**-1 of data from p p collisions at sqrt(s) = 5.02 TeV. The result is in agreement with the NNLO SM prediction 68.9+1.9-2.3(scale)+-2.3(PDF)+1.4(alpha_{{s}}) pb.


pdgid: Q007TX7
text:
AABOUD 2023 based on 4.6 fb**-1 of data. The measurement is performed using a multi-variate event classifier based on a binary learning algorithm which differentiates t tbar events from backgrounds in a three-dimensional space. The result is in agreement with the NNLO+NNLL SM prediction of 177+5-6(scale)+-9(PDF+alpha(s)) pb for mass(t) = 172.5 GeV.  Compared to the measured cross section using the dilepton mode of AAD 2014AY, significance of discrepancy is between 1.9sigma to 2.1sigma.


pdgid: Q007TX7
text:
AAD 2023AY based on 5 fb**-1 of data using mass(t) = 172.5 GeV. The ratio of the  combined cross  section at sqrt(s) = 8 TeV to this one at sqrt(s) = 7 TeV is determined as 1.363+-0.032. The values of the cross sections as well as the ratio are consistent with  the NNLO+NNLL SM predictions.


pdgid: Q007TX7
text:
KHACHATRYAN 2017B based on 5.0 fb**-1 of data, using a binned likelihood fit of templates to the data. Also the ratio CS(t tbar; 8 TeV)/CS(t tbar; 7 TeV) = 1.43+-0.04+-0.07+-0.05 is reported. The results are in agreement with NNLO SM predictions.


pdgid: Q007TX7
text:
KHACHATRYAN 2016AW based on 5.0 fb**-1 of data, using a binned likelihood fit to differential distributions of b-tagged and non-b-tagged jets. The result is in good agreement with NNLO SM predictions.


pdgid: Q007TX7
text:
Based on 4.6 fb**-1 of data. Uses a template fit to distributions of notET and jet multiplicities to measure simultaneously t tbar, W W, and Z/gamma^* --> tau tau cross sections, assuming mass(t) = 172.5 GeV.


pdgid: Q007TX7
text:
AAD 2015CC based on 4.6 fb**-1 of data. The event selection criteria are optimized for the lepton tau_h + jets channel. Using only this channel 183+-9+-23+-3 pb is derived for the cross section.


pdgid: Q007TX7
text:
AAIJ 2015R, based on 1.0 fb**-1 of data, reports 0.239+-0.053+-0.033+-0.024 pb cross section for the forward fiducial region p_{{T}}(mu) > 25 GeV, 2.0 < eta(mu) < 4.5, 50 GeV < p_T(b) < 100 GeV, 2.2 < eta(b) < 4.2, DeltaR(mu,b) > 0.5, and p_{{T}}(mu+b) > 20 GeV. The three errors are from statistics, systematics, and theory. The result agrees with the SM NLO prediction.


pdgid: Q007TX7
text:
AAD 2014AY reports 182.9+-3.1+-4.2+-3.6+-3.3 pb value based on 4.6 fb**-1 of data. The four errors are from statistics, systematic, luminosity, and the 0.66% beam energy uncertainty. We have combined the systematic uncertainties in quadrature. The result is for mass(t) = 172.5GeV; for other mass(t), CS(mass(t)) = sigma(172.5GeV)*[1-0.0028*(mass(t)-172.5GeV)]. The result is consistent with the SM prediction at NNLO.


pdgid: Q007TX7
text:
Based on 0.70 fb**-1 of data. The 3 errors are from statistics, systematics, and luminosity. The result uses the acceptance for mass(t) = 172.5 GeV.


pdgid: Q007TX7
text:
Based on 35 pb**-1 of data. The 3 errors are from statistics, systematics, and luminosity. The result uses the acceptance for mass(t) = 172.5 GeV and 173+-17+18-16+-6 pb is found without the b-tag.


pdgid: Q007TX7
text:
Based on 2.05 fb**-1 of data. The hadronic tau candidates are selected using a BDT technique. The 3 errors are from statistics, systematics, and luminosity. The result uses the acceptance for mass(t) = 172.5 GeV.


pdgid: Q007TX7
text:
Based on 2.0 fb**-1 and 2.2 fb**-1 of data for lepton = e and lepton = mu, respectively. The 3 errors are from statistics, systematics, and luminosity. The result uses the acceptance for mass(t) = 172.5 GeV.


pdgid: Q007TX7
text:
Based on 2.3 fb**-1 of data. The 3 errors are from statistics, systematics, and luminosity. The result uses the profile likelihood-ratio (PLB) method and an assumed mass(t) of 172.5 GeV.


pdgid: Q007TX7
text:
Based on 2.9 pb**-1 of data. The result for single lepton channels is 142+-34+50-31 pb, while for the dilepton channels is 151+78-62+37-24 pb.


pdgid: Q007TX7
text:
Result is based on 36 pb**-1 of data. The first uncertainty corresponds to the statistical and systematic uncertainties, and the second corresponds to the luminosity.


pdgid: Q007TX7
text:
Based on 36 pb**-1 of data. The ratio of t tbar and Z/gamma^*() cross sections is measured as CS(p p --> t tbar)/CS(p p --> Z/gamma^*() --> e+ e-/mu+ mu-) = 0.175+-0.018(stat)+-0.015(syst) for 60 < mass(lepton lepton)< 120 GeV, for which they use an NNLO prediction for the denominator cross section of 972+-42 pb.


pdgid: Q007TX7
text:
Result is based on 36 pb**-1 of data. The first error is from statistical and systematic uncertainties, and the second from luminosity. This is a combination of a measurement in the dilepton channel (CHATRCHYAN 2011F) and the measurement in the lepton + jets channel (CHATRCHYAN 2011Z) which yields 150+-9+-17+-6 pb.


pdgid: Q007TX8
text:
AAD 2023AY based on 20 fb**-1 of data using mass(t) = 172.5 GeV. The ratio of this cross section at sqrt(s) = 8 TeV to the combined cross section at sqrt(s) = 7 TeV is determined as 1.363+-0.032. The values of cross sections as well as their ratio are consistent with the NNLO+NNLL SM predictions.


pdgid: Q007TX8
text:
AABOUD 2018BH based on 20.2 fb**-1 of data. The result is for mass(t) = 172.5 GeV. To reduce effects of uncertainties in the jet energy scale and b-tagging efficiency, they are included as nuisance parameters in the fit of discriminant distributions, after separating selected events into three regions. Furthermore the W+jets background distribution is modelled using Z+jets event data.


pdgid: Q007TX8
text:
AABOUD 2017Z based on 20.2 fb**-1 of data, using the mode t tbar --> tau nu q^' qbar b bbar with tau decaying hadronically. Single prong and 3 prong decays of tau are separately analyzed. The result is consistent with the SM. The third quoted uncertainty is due to luminosity.


pdgid: Q007TX8
text:
KHACHATRYAN 2017B based on 19.6 fb**-1 of data, using a binned likelihood fit of templates to the data. Also the ratio CS(t tbar; 8 TeV)/CS(t tbar; 7 TeV) = 1.43+-0.04+-0.07+-0.05 is reported. The results are in agreement with NNLO SM predictions.


pdgid: Q007TX8
text:
AAD 2016BK is an update of the value from AAD 2014AY using the improved luminosity calibration. The value 242.9+-1.7+-5.5+-5.1+-4.2 pb is reported, where we have combined the systematic uncertainties in quadrature. Also the ratio CS(t tbar; 8TeV)/CS(t tbar; 7TeV) = 1.328+-0.024+-0.015+-0.038+-0.001 has been updated. The former result is consistent with the SM predictions at NNLO, while the latter result is 2.1 sigma below the expectation.


pdgid: Q007TX8
text:
KHACHATRYAN 2016AW based on 19.7 fb**-1 of data, using a binned likelihood fit to differential distributions of b-tagged and non-b-tagged jets. The result is in good agreement with NNLO SM predictions.


pdgid: Q007TX8
text:
KHACHATRYAN 2016BC based on 18.4 fb**-1 of data. The last uncertainty is due to luminosity. Cuts on kinematical fit probability and DeltaR(b,b) are imposed. The major QCD background is determined from the data. The result is for mass(t) = 172.5 GeV and in agreement with the SM prediction. The top quark p_{{T}} spectra, also measured, are significantly softer than theoretical predictions.


pdgid: Q007TX8
text:
AAD 2015BP based on 20.3 fb**-1 of data. The result is for mass(t) = 172.5 GeV and in agreement with the SM prediction 253+13-15 pb at NNLO+NNLL. Superseded by AABOUD 2018BH.


pdgid: Q007TX8
text:
AAIJ 2015R, based on 2.0 fb**-1 of data, reports 0.289+-0.043+-0.040+-0.029 pb cross section for the forward fiducial region p_T(mu) > 25 GeV, 2.0 < eta(mu) < 4.5, 50 GeV < p_T(b) < 100 GeV, 2.2 < eta(b) < 4.2, DeltaR(mu,b) > 0.5, and p_T(mu+b) > 20 GeV. The three errors are from statistics, systematics, and theory. The result agrees with the SM NLO prediction.


pdgid: Q007TX8
text:
AAD 2014AY reports 242.4+-1.7+-5.5+-7.5+-4.2 pb value based on 20.3 fb**-1 of data. The four errors are from statistics, systematic, luminosity, and the 0.66% beam energy uncertainty. We have combined the systematic uncertainties in quadrature. The result is for mass(t) = 172.5GeV; for other mass(t), CS(mass(t)) = CS(172.5GeV)*[1-0.0028*(mass(t)-172.5GeV)]. Also measured is the ratio CS(t tbar; 8TeV)/CS(t tbar; 7TeV) = 1.326+-0.024+-0.015+-0.049+-0.001. The results are consistent with the SM predictions at NNLO.


pdgid: Q007TX8
text:
Based on 5.3 fb**-1 of data. The result is for mass(t) = 172.5 GeV, and a parametrization is given in eq.(6.1) for the mean value at other mass(t) values. The result is in agreement with the SM prediction 252.9+6.4-8.6 pb at NNLO.


pdgid: Q007TX8
text:
Based on 19.6 fb**-1 of data. The measurement is in the channel t tbar --> (b lepton nu) (b tau nu), where tau decays into hadrons (tau_{{h}}). The result is for mass(t) = 172.5 GeV. For mass(t) = 173.3 GeV, the cross section is lower by 3.1 pb.


pdgid: Q007X13
text:
AAD 2023S based on 140 fb**-1 of data at 13 TeV. The second error is the sum of  systematic effects (+-13), luminosity (+-8), and beam energy (+-2) uncertainties. This measurement supersedes that of AAD 2020Q. The result is in good agreement with the NNLO+NNLL SM prediction.


pdgid: Q007X13
text:
TUMASYAN 2021J result is based on 137 fb**-1 of data. The last uncertainty is due to the beam luminosity. The result is in agreement with the SM prediction of 832+40-46 pb at NNLO+NNLL. Measurements of differential and double-differential cross sections are also presented.


pdgid: Q007X13
text:
AAD 2020AH based on 139 fb**-1 of data. The last quoted uncertainty is due to the beam luminosity. The result is for mass(t) = 172.5 GeV and in agreement with the SM prediction of 832+20-29(scale)+-35(PDF+alpha(s)) pb at NNLO+NNLL.


pdgid: Q007X13
text:
AAD 2020Q reports 826.4+-3.6+-11.5+-15.7+-1.9 pb based on 36.1 fb**-1 of data at 13 TeV. The four errors stem from statistics, systematic effects, luminosity, and beam energy, respectively. We have combined luminosity and beam energy uncertainties in quadrature. The result is in agreement with the SM prediction 832+20-29(scale)+-35(PDF+alpha(s)) pb at NNLO+NNLL for mass(t) = 172.5 GeV.


pdgid: Q007X13
text:
SIRUNYAN 2020V based on 35.9 fb**-1 of p p data at sqrt(s) = 13 TeV. The last uncertainty is due to beam luminosity. The t tbar production cross section is measured in the t tbar --> (lepton nu_lepton) (tau_h nu_tau) b bbar final state, where tau_{{h}} refers to the hadronic decays of tau. The result is for mass(t) = 172.5 GeV and in agreement with the SM prediction at NNLO+NNLL.


pdgid: Q007X13
text:
SIRUNYAN 2019AR based on 35.9 fb**-1 of data. Obtained from the visible cross section measured using a template fit to multidifferential distributions categorized according to the b-tagged jet multiplicity. The result is for mass(t) = 172.5 GeV and in agreement with the SM prediction at NNLO+NNLL.


pdgid: Q007X13
text:
SIRUNYAN 2019P reports differential t tbar cross sections measured using dilepton events at 13 TeV with 35.9 fb**-1 and compared to NLO predictions.


pdgid: Q007X13
text:
KHACHATRYAN 2017N based on 2.2 fb**-1 of data. The last quoted uncertainty is due to the beam luminosity. This measurement supersedes that of KHACHATRYAN 2016J.


pdgid: Q007X13
text:
SIRUNYAN 2017W based on 2.2 fb**-1 of p p data at sqrt(s) = 13 TeV. Events are categorized according to the jet multiplicity and the number of b-tagged jets. A likelihood fit is performed to the event distributions to compare to the NNLO+NNLL prediction.


pdgid: Q007X13
text:
AABOUD 2016R reported value 818+-8+-27+-19+-12 pb based on 3.2 fb**-1 of data. The four errors are from statistics, systematic, luminosity, and beam energy. We have combined the systematic uncertainties in quadrature. The result is in agreement with the SM prediction 832+20-29(scale)+-35(PDF+alpha(s)) pb at NNLO+NNLL for mass(t) = 172.5 GeV.


pdgid: Q007X13
text:
KHACHATRYAN 2016J based on 43 pb**-1 of data. The last uncertainty is due to luminosity. The result is for mass(t) = 172.5 GeV and in agreement with the SM prediction 832+20-29(scale)+-35(PDF+alpha(s)) pb at NNLO+NNLL.


pdgid: Q007Y13
text:
AAD 2024 based on 29 fb**-1 of data. The last error includes the luminosity uncertainty of +-20 pb. The result is for mass(t) = 172.5 GeV and in agreement with the SM prediction of 924+32-40 (scale+PDF+alpha(s)) pb. The ratio of the t tbar to the Z production cross section is also measured as 1.145+-0.003+-0.021+-0.002, which is consistent with the SM prediction of 1.238+0.063-0.071 (scale+PDF+alpha(s)). The uncertainties of luminosity and lepton efficiency largely cancel in the ratio.


pdgid: Q007Y13
text:
AAD 2024BC based on 29 fb**-1 of data. The same data sample as AAD 2024 is used to measure the ratios of the t tbar to the W+-, W+ and W- production cross sections.


pdgid: Q007NP1
text:
AAD 2024CC based on 165 nb**-1 of proton-lead collision data at a nucleon-nucleon c.m. energy of 8.16 TeV. Top quark pair production is observed with more than 5sigma significance in each mode. The nuclear modification factor is measured to be R(p A) = 1.090+-0.039(stat)+0.094(syst). The results agree with theory predictions.


pdgid: Q007NP1
text:
SIRUNYAN 2017CQ based on 174 nb**-1 of proton-lead collision data at a nucleon-nucleon c.m. energy of 8.16 TeV. Top quark pair production is observed with more than 5sigma significance. The measured cross section is consistent with the expectation from the scaled p p data as well as perturbative QCD calculations.


pdgid: Q007NN1
text:
SIRUNYAN 2020BC based on (1.7+-0.1) nb**-1 of lead-lead collision data at a nucleon-nucleon c.m. energy of 5.02 TeV. It makes use of the final-state dilepton kinematic properties together with requirements on the number of b-jets. The measured value is compatible with QCD predictions.


pdgid: Q007NN1
text:
SIRUNYAN 2020BC based on (1.7+-0.1) nb**-1 of lead-lead collision data at a nucleon-nucleon c.m. energy of 5.02 TeV. It makes use of the final-state dilepton kinematic properties alone. The measured value is compatible with QCD predictions.


pdgid: Q007DT8
text:
AAD 2015AR based on 20.3 fb**-1 of data. A fit to H_T distributions in multi-channels classified by the number of jets and of b-tagged jets is performed.


pdgid: Q007DT8
text:
AAD 2015BY based on 20.3 fb**-1 of data. A same-sign lepton pair is required. An excess over the SM prediction reaches 2.5sigma for hypotheses involving heavy resonances decaying into  t tbar t tbar.


pdgid: Q007DT8
text:
Based on 19.6 fb**-1 of data, using a multivariate analysis to separate signal from backgrounds. About CS(t tbar t tbar) = 1 fb is expected in the SM.


pdgid: Q007D13
text:
AAD 2023BC result is based on 140 fb**-1 of data. The result corresponds to observed significance of 6.1 sigma.


pdgid: Q007D13
text:
HAYRAPETYAN 2023B based on 138 fb**-1 of data. Improvements include the identification of leptons and jets from b hadrons, and from the revised analysis strategy for the signal-background separation by application of machine learning techniques. The result corresponds to the observed significance of 5.6 sigma and is in agreement with the NLO (QCD+EW) SM prediction of 13.4+1.0-1.8 fb including soft-gluon emission corrections at the next-to-leading logarithmic accuracy.


pdgid: Q007D13
text:
TUMASYAN 2023AQ based on up to 138 fb**-1 of data. The all-hadronic final state is included for the first time.


pdgid: Q007D13
text:
TUMASYAN 2023AQ based on up to 138 fb**-1 of data. It combines earlier CMS results, giving the observed significance of 4.0sigma.


pdgid: Q007D13
text:
AAD 2021BC result is based on 139 fb**-1 of data. The events are categorized according to the number of jets and how likely to contain b-hadrons and a multivariate analysis is used to discriminate the signal from backgrounds. The result corresponds to observed significance of 1.9 sigma.


pdgid: Q007D13
text:
AAD 2021BC combines the results of the four-top-quark production cross section measured from the 1lepton/opposite-sign 2lepton channel with that from the same-sign 2lepton/3lepton channel (AAD 2020AR). The result corresponds to observed significance of 4.7 sigma and is consistent within 2.0 sigma with the NLO (QCD+EW) SM prediction of 12.0+-2.4 fb.


pdgid: Q007D13
text:
AAD 2020AR based on 139 fb**-1 of data. Jet multiplicity, jet flavor and event kinematics are used in a multivariate analysis to discriminate the signal from backgrounds. The result corresponds to observed significance of 4.3sigma and is consistent within 1.7sigma with the NLO (QCD+EW) SM prediction of 12.0+-2.4 fb.


pdgid: Q007D13
text:
SIRUNYAN 2020C based on 137 fb**-1 of data. Both cut-based and multivariate approaches are taken to discriminate the signal from backgrounds. The result is in agreement with the NLO (QCD+EW) SM prediction of 12.0+2.2-2.5 fb. The measurement constrains the top quark Yukawa coupling strength parameter to be |Y_{{t}}/Y_{{t}}^SM| < 1.7 (95% CL). It is also used to constrain an oblique parameter of the Higgs boson. Superseded by HAYRAPETYAN 2023B.


pdgid: Q007D13
text:
AABOUD 2019AP based on 36.1 fb**-1 of data. The upper limit corresponds to 5.1 times the NLO SM cross section.


pdgid: Q007D13
text:
AABOUD 2019AP limit from data combined with AABOUD 2018CE. The upper limit corresponds to 5.3 times the NLO SM cross section. Also a limit on the four-top-quark contact interaction of |C(4t)|/Lambda**2 < 1.9 TeV**-2 (95% CL) is obtained in an EFT model.


pdgid: Q007D13
text:
SIRUNYAN 2019CN based on 35.8 fb**-1 of data, combined with SIRUNYAN 2018BU. The results are also interpreted in the effective field theory framework.


pdgid: Q007D13
text:
SIRUNYAN 2019CN based on 35.8 fb**-1 of data. A multivariate analysis using global event and jet propoerties is performed to discriminate from t tbar background.


pdgid: Q007D13
text:
AABOUD 2018CE based on 36.1 fb**-1 of proton-proton data taken at sqrt(s) = 13 TeV. Events including a same-sign lepton pair are used. The result is consistent with the NLO SM cross section of 9.2 fb.


pdgid: Q007D13
text:
SIRUNYAN 2018BU based on 35.9 fb**-1 of proton-proton data taken at sqrt(s) = 13 TeV. Yields from signal regions and control regions defined based on N_{{jets}}, N_{{b}} and N_{{l}} are combined in a maximum-likelihood fit. The result is in agreement with the NLO SM prediction 9.2+2.9-2.4 fb. The measurement constrains the top quark Yukawa coupling strength parameter to be |Y(t)/Y(t)**SM| < 2.1 (95% CL).


pdgid: Q007D13
text:
SIRUNYAN 2017AB based on 2.6 fb**-1 of data. A multivariate analysis is used to discriminate between t tbar t tbar signal and t tbar background. A combination with a previous search (CMS, KHACHATRYAN 2016BJ) in the same-sign dilepton channel gives an upper limit of 69 fb (95% CL), corresponding to 7.4.(SM prediction).


pdgid: Q007D13
text:
SIRUNYAN 2017S based on 35.9 fb**-1. The limit is in agreement with the NLO SM prediction 9.2+2.9-2.4 fb. Superseded by SIRUNYAN 2018BU. The signal events are also used to constrain various new physics models.


pdgid: Q007TW8
text:
Based on 19.5 fb**-1 of data. The result is consistent with the SM prediction of CS(t tbar W) = 206+21-23 fb.


pdgid: Q007TWX
text:
AAD 2024AI result is based on 140 fb**-1 of data. The result is consistent with the SM prediction 0.745+-0.050(scale)+-0.013(two loop approx.)+-0.019(PDF alpha(S)) pb. The inclusive relative charge asymmetry of t tbar W+ and t tbar W- is measured to be 0.33+-0.05 in agreement with the SM prediction of 0.322+-0.003(scale)+-0.007(PDF).


pdgid: Q007TWX
text:
TUMASYAN 2023AN result is based on 138 fb**-1 of proton-proton data. The t tbar W+  and t tbar W- production cross  sections, respectively, are measured as  0.553+-0.030+-0.030 pb and 0.343+-0.026+-0.025 pb.  The results are within 2sigma  deviations from the NLO FxFx SM predictions,  0.592+0.155-0.097 pb (t tbar W),  0.384+0.053-0.033 pb (t tbar W+) and  0.198+0.026-0.017 pb (t tbar W-).


pdgid: Q007TWX
text:
AABOUD 2019AR result is based on 35.9 fb**-1 of data. t tbar W and t tbar Z cross sections are simultaneously measured using a combined fit to the events divided into multiple regions. The result is consistent with the SM prediction at NLO 0.60+0.08-0.07 pb. It is also used to constrain the Wilson coefficients for dimension-six operators which modify the t tbar Z vertex.


pdgid: Q007TWX
text:
SIRUNYAN 2018BS result is based on 35.9 fb**-1 of proton-proton data taken at sqrt(s) = 13 TeV. The result is consistent with the SM prediction and is used to constrain the Wilson coefficients for dimension-six operators describing new interactions. The result is consistent with the SM prediction at NLO 0.628+-0.082 pb.


pdgid: Q007TZ8
text:
Based on 19.5 fb**-1 of data. The result is consistent with the SM prediction of CS(t tbar Z) = 197+22-25 fb.


pdgid: Q007TZX
text:
AAD 2024AN based on 140 fb**-1 of data. The result is consistent with the NLO+NNLL SM prediction including EW corrections of 0.863+0.073-0.085(scale) +-0.028(PDF + alpha_{{s}}) pb. Also overall the differential cross sections are in good agreement with the SM predictions. All hadronic decays of t tbar are also included.


pdgid: Q007TZX
text:
AAD 2021AS based on 139 fb**-1 of data. The result is consistent with the SM prediction of 0.88+0.09-0.10 pb which includes NLO QCD+EW corrections. Also overall the differential cross sections are in good agreement with the SM predictions.


pdgid: Q007TZX
text:
SIRUNYAN 2020AB based on 77.5 fb**-1 of data at 13 TeV. The result is consistent with the NLO SM prediction of 0.84+-0.10 pb. Differential cross sections are measured and used to constrain the anomalous couplings and Wilson coefficients for the t tbar Z interaction.


pdgid: Q007TZX
text:
AABOUD 2019AR based on 35.9 fb**-1 of data. t tbar W and t tbar Z cross sections are simultaneously measured using a combined fit to the events divided into multiple regions. The result is consistent with the SM prediction at NLO 0.88+0.09-0.11 pb. It is also used to constrain the Wilson coefficients for dimension-six operators which modify the t tbar Z vertex.


pdgid: Q007TZX
text:
Based on 35.9 fb**-1 of proton-proton data taken at sqrt(s) = 13 TeV. The result is consistent with the SM prediction and is used to constrain the Wilson coefficients for dimension-six operators describing new interactions. The result is consistent with the SM prediction at NLO 0.839+-0.101 pb.


pdgid: Q007A01
text:
AAD 2024BY measured fiducial inclusive and differential cross-sections for p p --> t tbar gamma at 13 TeV with 140 fb**-1 of data. The results are in agreement with the SM predictions. The results are used to constrain anomalous couplings of the top quark in the SMEFT framework.


pdgid: Q007A01
text:
TUMASYAN 2022W measured fiducial inclusive and differential cross-sections for p p --> t tbar gamma at 13 TeV with 138 fb**-1 of data. The results are in agreement with the SM predictions. The results are used to constrain anomalous couplings of the top quark in the SMEFT framework.


pdgid: Q007A01
text:
TUMASYAN 2021H measured fiducial inclusive and differential cross-sections for p p --> t tbar gamma at 13 TeV with 137 fb**-1 of data. The results are in agreement with the SM predictions. The results are used to constrain anomalous couplings of the top quark in the SMEFT framework.


pdgid: Q007A01
text:
AABOUD 2019AD measured fiducial inclusive and differential cross-sections for p p --> t tbar gamma at 13 TeV with 36.1 fb**-1 of data. The results are in agreement with the theoretical predictions.


pdgid: Q007FQ7
text:
CHATRCHYAN 2015 based on 5.0 fb**-1 of data. The t tbar events are selected in the dilepton and lepton + jets decay channels. For other values of Q(0) see Table 5.


pdgid: Q007FQ7
text:
Based on 2.05 fb**-1 of data. The t tbar events are selected in the dilepton decay channel with two identified b-jets.


pdgid: Q007TJ7
text:
Based on 4.6 fb**-1 of data. Fiducial t tbar production cross section is presented as a function of the jet multiplicity for up to eight jets with the jet p_T threshold of 25, 40, 60, and 80 GeV, and as a function of jet p_T up to the 5th jet. MC models can be discriminated by using data for high jet multiplicity and by p_T distributions of the leading and 5th jet.


pdgid: Q007TJ7
text:
Based on 5.0 fb**-1 of data. Events with two oppositely charged leptons, large notET and jets with at least 1 b-tag are used to measure the fraction of t tbar plus additional jets. The gap fraction (n=0 jet rate) as a function of the jet p_{{T}} and that of H_{{T}}, the scalar sum of the p_{{T}}'s of additional jets, is shown in Fig. 8.


pdgid: Q007AC7
text:
ATLAS and CMS combination based on the data of AAD 2014I and CHATRCHYAN 2012BB. It takes into account the correlations of the measurements and systematic errors. The result is in agreement with the SM prediction (NLO QCD + NLO EW).


pdgid: Q007AC7
text:
AAD 2015AJ based on 4.6 fb**-1 of data. After kinematic reconstruction the top quark momenta are corrected for detector resolution and acceptance effects by unfolding, using parton level information of the MC generators. The lepton charge asymmetry is measured as A(C)**lepton = 0.024+-0.015+-0.009. All the measurements are consistent with the SM predictions.


pdgid: Q007AC7
text:
Based on 4.7 fb**-1 of data. The result is consistent with the SM prediction of A(C) = 0.0123+-0.0005. The asymmetry is 0.011+-0.018 if restricted to those events where beta(Z)(t tbar) > 0.6, which is also consistent with the SM prediction of 0.020+0.006-0.007.


pdgid: Q007AC7
text:
Based on 5.0 fb**-1 of data. The lepton charge asymmetry is measured as A(C)**lepton = 0.009+-0.0010+-0.006. A(C)**lepton dependences on mass(t tbar), |y(t tbar)|, and p_{{T}}(t tbar) are given in Fig. 5. All measurements are consistent with the SM predictions.


pdgid: Q007AC7
text:
Based on 1.04 fb**-1 of data. The result is consistent with A(C) = 0.006+-0.002 (MC at NLO). No significant dependence of A(C) on mass(t tbar) is observed.


pdgid: Q007AC8
text:
ATLAS and CMS combination based on the data of AAD 2016AZ and KHACHATRYAN 2016AH. It takes into account the correlations of the measurements and systematic errors. A combination of the differential measurements of the charge asymmetry is also presented. The results are in agreement with the SM prediction (NNLO QCD + NLO EW).


pdgid: Q007AC8
text:
AAD 2016AE is based on 20.3 fb**-1 of data. After kinematic reconstruction, the top quark momenta are corrected for detector resolution and acceptance effects by unfolding, using parton level information of the MC generators. The lepton charge asymmetry is measured as A(C)**lepton lepton = 0.008+-0.006. All the measurements are consistent with the SM predictions.


pdgid: Q007AC8
text:
AAD 2016AZ based on 20.3 fb**-1 of data. All the differential and inclusive measurements are statistically limited and consistent with the SM predictions.


pdgid: Q007AC8
text:
AAD 2016T based on 20.3 fb**-1 of data. Uses reconstruction techniques for the decay topology of highly boosted top quarks. The observed asymmetry is transformed by unfolding to a parton-level result in the shown fiducial region. The result is consistent with the NLO SM prediction.


pdgid: Q007AC8
text:
KHACHATRYAN 2016AD based on 19.5 fb**-1 of data. The lepton charge asymmetry is measured as A(C)**lepton lepton = 0.003+-0.006+-0.003. All the measurements are consistent with the SM predictions.


pdgid: Q007AC8
text:
KHACHATRYAN 2016AH based on 19.6 fb**-1 of data. The same data set as in KHACHATRYAN 2016T is used. A template technique is used, which is sensitive to the charge anti-symmetric component of the t tbar rapidity distributions and statistically advantageous. The result is consistent with the SM predictions.


pdgid: Q007AC8
text:
KHACHATRYAN 2016T based on 19.7 fb**-1 of data. The same data set as in KHACHATRYAN 2016AH is used. After kinematic reconstruction the top quark momenta are corrected for detector resolution and acceptance effects by unfolding, using parton level information of the MC generators. All the measurements are consistent with the SM predictions.


pdgid: Q007ACX
text:
AAD 2023BA is based on 139 fb**-1 of data. Inclusive t tbar charge asymmetry is  measured to be nonzero with 4.7sigma significance. Also differential t tbar as well   as lepton  charge asymmetries are measured. All the results are consistent with the SM  predictions which  include NNLO QCD + NLO EW corrections.


pdgid: Q007ACX
text:
TUMASYAN 2023BD is based on 138 fb**-1 of data. t tbar charge asymmetry for highly Lorentz-boosted top quarks is measured and is in agreement with the NNLO QCD + NLO EW corrected SM prediction of 0.94+0.05-0.07%. The event selection is optimized for highly-boosted top quarks.


pdgid: Q007A06
text:
AAD 2023AA is based on 139 fb**-1 of data. The charge-asymmetry in a fiducial volume at  particle level is also reported at -0.11+-0.17+-0.05. All the results are consistent with the SM predictions which include NLO QCD + NLO EW corrections.


pdgid: Q007A07
text:
AAD 2023AW is based on 139 fb**-1 of data. The measurement is in agreement with the Standard Model expectation.


pdgid: Q007PL2
text:
ABAZOV 2017 based on 9.7 fb**-1 of data. The value is top quark polarization times spin analyzing power in the beam basis. Combination with the result of ABAZOV 2015K yields 0.081+-0.048. This result together with the helicity polarization is shown in a 2-dimensional plot in Fig.4. These results are consistent with the SM prediction.


pdgid: Q007PL2
text:
ABAZOV 2017 based on 9.7 fb**-1 of data. The value is top quark polarization times spin analyzing power in the helicity basis. The result is consistent with the SM prediction. This result together with the beam polarization is shown in a 2-dimensional plot in Fig.4.


pdgid: Q007PL2
text:
ABAZOV 2017 based on 9.7 fb**-1 of data. The value is top quark polarization times spin analyzing power in the transverse basis. The result is consistent with the SM prediction.


pdgid: Q007PL2
text:
ABAZOV 2015K based on 9.7 fb**-1 of data. The value is top quark polarization times spin analyzing power in the beam basis. The result is consistent with the SM prediction of -0.0019+-0.0005.


pdgid: Q007PL7
text:
Based on 4.7 fb**-1 of data using the final states containing one or two isolated electrons or muons and jets with at least one b-tag.


pdgid: Q007PL8
text:
AABOUD 2017G based on 20.2 fb**-1 of p p data, using events with two leptons and two or more jets with at least one b-tag. Determined from measurements of 15 top quark spin observables. The second error corresponds to a variation of mass(t) about 172.5 GeV by 0.7 GeV. The values are consistent with the NLO SM predictions.


pdgid: Q007PL8
text:
KHACHATRYAN 2016AI based on 19.5 fb**-1 of p p data at sqrt(s) = 8 TeV, using events with two leptons and two or more jets with at least one b-tag. Determined from the lepton angular distributions as a function of the t tbar-system kinematical variables.


pdgid: Q007A00
text:
AABOUD 2017BB based on 20.2 fb**-1 of p p data. Triple-differential decay rate of top quark is used to simultaneously determine five generalized W t b couplings as well as the top polarization. alpha_{{{{mathit ell}}}} denotes the spin analyzing power of charged lepton, and the spin axis of the top polarization P is taken along the spectator-quark momentum in the top rest frame. The value is compatible with the SM prediction of about 0.9.


pdgid: Q007A00
text:
AABOUD 2017I based on 20.2 fb**-1 of p p data. A cut-based analysis is used to discriminate between signal and backgrounds. alpha(lepton) denotes the spin analyzing power of charged lepton, and the spin axis of the top polarization P is taken along the spectator-quark momentum in the top rest frame. See this paper for a number of other asymmetries and measurements that are not included here.


pdgid: Q007A00
text:
AABOUD 2017I based on 20.2 fb**-1 of p p data. A cut-based analysis is used to discriminate between signal and backgrounds. F(+-) denotes W helicity fraction, and the spin axis of the top polarization P is taken along the spectator-quark momentum in the top rest frame. See this paper for a number of other asymmetries and measurements that are not included here.


pdgid: Q007A00
text:
KHACHATRYAN 2016BO based on 19.7 fb**-1 of data. A high-purity sample with a muon is selected by a multivariate analysis. The value is the top spin asymmetry, given by one half of the spin analyzing power alpha(mu) (=1 at LO of SM) times the top polarization, P, where the spin axis is defined as the direction of the untagged jet in the top rest frame. The value is compatible with the SM prediction of 0.44 with a 2.0sigma deviation.


pdgid: Q007A04
text:
AAD 2022Z based on 139 fb**-1 of data. Three components of t or tbar polarization vector (defined in the t or tbar rest frame) are measured in t-channel single top production using lepton momentum distribution in the lepton + notET + 2j (with 1 of them b-jet) channel. The measured values are in agreement with NNLO SM prediction. Constraints on the Wilson coefficients of SMEFT are obtained as -0.9 < C_{{tW}} < 1.4 and -0.8 < C_{{itW}} < 0.2.


pdgid: Q007A04
text:
SIRUNYAN 2020R based on 36.1 fb**-1 of data. Differential cross sections for t-channel single top production are measured using 1lepton + 2,3-jet mode and found to be in good agreement with SM predictions. The value is the top spin asymmetry, given by 1/2 of the spin analyzing power alpha_{{{{mathit ell}}}} (=1 at LO of SM) times the top polarization P, where the spin axis is defined as the direction of the spectator quark in the top rest frame at the parton level. It is in good agreement with the NLO SM prediction of 0.436.


pdgid: Q007TXG
text:
Based on 955 pb**-1. AALTONEN 2009F used differences in the t tbar production angular distribution and polarization correlation to descriminate between g g --> t tbar and q qbar --> t tbar subprocesses. The combination with the result of AALTONEN 2008AG gives 0.07+0.15-0.07.


pdgid: Q007TXG
text:
Result is based on 0.96 fb**-1 of data. The contribution of the subprocesses g g --> t tbar and q qbar --> t tbar is distinguished by using the difference between quark and gluon initiated jets in the number of small pT (0.3 GeV < pT < 3 GeV) charged particles in the central region (|eta| < 1.1).


pdgid: Q007TFB
text:
AALTONEN 2018 based on 9 -- 10 fb**-1 of p pbar data at sqrt(s) = 1.96 TeV. The value is the asymmetry in the number of reconstructed t tbar events with rapidity y(t) > y(tbar) and those with y(t) < y(tbar). The combined fits to CDF and D0 single lepton and lepton lepton asymmetries give A(FB)**lepton = 0.073+-0.016+-0.012 and A(FB)**lepton lepton = 0.108+-0.043+-0.016, respectively. The results are consistent with the SM predictions.


pdgid: Q007TFB
text:
ABAZOV 2015K based on 9.7 fb**-1 of data. The result is consistent with the SM predictions. By combining with the previous D0 measurement in the lepton + jet channel ABAZOV 2014H, A(FB)**lepton = 0.118+-0.025+-0.013 is obtained.


pdgid: Q007TFB
text:
AALTONEN 2014F based on 9.1 fb**-1 of data. A(FB)**lepton and A(FB)**leptonlepton denote, respectively, the asymmetries (N(x>0)-N(x<0))/N(tot) for x=q(lepton)eta(lepton) (q(lepton) is the charge of lepton) and x=eta(lepton**+)-eta(lepton**-). Both results are consistent with the SM predictions. By combining with the previous CDF measurement in the lepton+jet channel AALTONEN 2013X, A(FB)**lepton = 0.098+0.028-0.026 is obtained. The combined result is about two sigma larger than the SM prediction of A(FB)**lepton = 0.038+-0.003.


pdgid: Q007TFB
text:
Based on 9.7 fb**-1 of p pbar data at sqrt(s) = 1.96 TeV. The asymmetry is corrected for the production level for events with |y(l)| < 1.5. Asymmetry as functions of E(T)(lepton) and |y(l)| are given in Figs. 7 and 8, respectively. Combination with the asymmetry measured in the dilepton channel [ABAZOV 2013P] gives A(FB)**lepton = 4.2+-2.0+-1.4 %, in agreement with the SM prediction of 2.0%.


pdgid: Q007TFB
text:
Based on 9.7 fb**-1 of data of p pbar data at sqrt(s)=1.96 TeV. The measured asymmetry is in agreement with the SM predictions of 8.8+-0.9 % [BERNREUTHER 2012], which includes the EW effects. The dependences of the asymmetry on |y(t) - y(tbar)| and mass(t tbar) are shown in Figs. 9 and 10, respectively.


pdgid: Q007TFB
text:
Based on 9.4 fb**-1 of data. Reported A_FB values come from the determination of a_{{i}}() coefficients of dsigma/d(costheta(t)) = Sigma(i) a_{{i}}P(i)(cos(theta(t))) measurement. The result of a_{{1}}()/a_{{0}}() = (40+-12)% seems higher than the NLO SM prediction of (15+7-3)%.


pdgid: Q007TFB
text:
Based on 9.4 fb**-1 of data. The observed asymmetry is to be compared with the SM prediction of A(FB)**lepton = 0.038+-0.003.


pdgid: Q007TFB
text:
Based on 5.4 fb**-1 of data. ABAZOV 2013A studied the dilepton channel of the t tbar events and measured the leptonic forward-backward asymmetry to be A(FB)**lepton = 5.8+-5.1+-1.3%, which is consistent with the SM (QCD+EW) prediction of 4.7+-0.1%. The result is obtained after combining the measurement (15.2+-4.0%) in the lepton + jets channel ABAZOV 2011AH. The top quark helicity is measured by using the neutrino weighting method to be consistent with zero in both dilepton and lepton + jets channels.


pdgid: Q007TFB
text:
Based on 5.3 fb**-1 of data. The error is statistical and systematic combined. Events with lepton + notET + >=4jets(>=1b) are used. AALTONEN 2011F also measures the asymmetry as a function of the rapidity difference |y(t) - y(tbar) |. The NLO QCD predictions [MCFM] are (4.0+-0.6)% and (8.8+-1.3)% for mass(t tbar) < 450 and > 450 GeV, respectively.


pdgid: Q007TFB
text:
Based on 5.4 fb**-1 of data. The error is statistical and systematic combined. The quoted asymmetry is obtained after unfolding to be compared with the MC@NLO prediction of (5.0+-0.1)%. No significant difference between the mass(t tbar) < 450 and > 450 GeV data samples is found. A corrected asymmetry based on the lepton from a top quark decay of (15.2+-4.0)% is measured to be compared to the MC@NLO prediction of (2.1+-0.1)%.


pdgid: Q007TFB
text:
Result is based on 1.9 fb**-1 of data. The FB asymmetry in the t tbar events has been measured in the lepton + jets mode, where the lepton charge is used as the flavor tag. The asymmetry in the p pbar frame is defined in terms of cos(theta) of hadronically decaying t-quark momentum, whereas that in the t tbar frame is defined in terms of the t and tbar rapidity difference. The results are consistent (<= 2 sigma) with the SM predictions.


pdgid: Q007TFB
text:
Result is based on 0.9 fb**-1 of data. The asymmetry in the number of t tbar events with y(t) > y(tbar) and those with y(t) < y(tbar) has been measured in the lepton + jets final state. The observed value is consistent with the SM prediction of 0.8% by MC@NLO, and an upper bound on the Z^' --> t tbar contribution for the SM Z-like couplings is given in in Fig. 2 for 350 GeV < mass(Z^') < 1 TeV.


pdgid: Q007TQ
text:
AAD 2013AY result is based on 2.05 fb**-1 of p p data at sqrt(s) = 7 TeV, the result is obtained by reconstructing t tbar events in the lepton + jets final state, where b-jet charges are tagged by the jet-charge algorithm. This measurement excludes the charge -4/3 assignment to the top quark at more than 8 standard deviations.


pdgid: Q007TQ
text:
ABAZOV 2014D result is based on 5.3 fb**-1 of p pbar data at sqrt(s)=1.96 TeV. The electric charge of b+W system in ttbar candidate events is measured from the charges of the leptons from W decay and in b jets. Under the assumption that the b+W system consists of the sum of the top quark and the charge -4/3 quark b^'(-4/3) of the same mass, the top quark fraction is found to be f = 0.88+-0.13 (stat)+-0.11 (syst), or the upper bound for the b^'(-4/3) contamination of 1 - f < 0.46 (95% CL).


pdgid: Q007TQ
text:
AALTONEN 2013J excludes the charge -4/3 assignment to the top quark at 99% CL, using 5.6 fb**-1 of data in p pbar collisions at sqrt(s) = 1.96 TeV. Result is obtained by reconstructing t tbar events in the lepton + jets final state, where b-jet charges are tagged by the jet-charge algorithm.


pdgid: Q007TQ
text:
AALTONEN 2010S excludes the charge -4/3 assignment for the top quark [CHANG 1999] at 95%CL, using 2.7 fb**-1 of data in p pbar collisions at sqrt(s) = 1.96 TeV. Result is obtained by reconstructing t tbar events in the lepton + jets final state, where b-jet charges are tagged by the SLT (soft lepton tag) algorithm.


pdgid: Q007TQ
text:
ABAZOV 2007C reports an upper limit rho< 0.80 (90% CL) on the fraction rho of exotic quark pairs Q Qbar with electric charge |q| = 4e/3 in t tbar candidate events with high pT lepton, missing E(T) and >=4 jets. The result is obtained by measuring the fraction of events in which the quark pair decays into W- + b and W+ + bbar, where b and bbar jets are discriminated by using the charge and momenta of tracks within the jet cones. The maximum CL at which the model of CHANG 1999 can be excluded is 92%. Based on 370 pb**-1 of data at sqrt(s) = 1.96 TeV.


pdgid: Q008BPP
text:
AAD 2024BP based on 140 fb**-1 of p p data at sqrt(s) = 13 TeV. Limit on pair-production of heavy vectorlike quarks where each decays into a W boson and a light quark. Used events with lepton + notET + multiple jets + 1 boosted-W-jet.


pdgid: Q008BPP
text:
HAYRAPETYAN 2024AQ based on 138 fb**-1 of p p data at sqrt(s) = 13 TeV. Pair production of vector-like b^' is searched for in the fully hadronic final states and those containing lepton+ lepton- from a Z boson. The data are consistent with the SM background predictions and limits are obtained for different branching ratios B(b^' --> H b), B(b^' --> Z b), B(b^' --> W t).


pdgid: Q008BPP
text:
TUMASYAN 2023V based on 138 fb**-1 of p p data at sqrt(s) = 13 TeV. Pair production  of vector-like b^' is seached for in the single-lepton, same-sign charge dilepton and multi-lepton channels. The data are consistent with the SM background predictions and limits are obtained for different branching ratios.


pdgid: Q008BPP
text:
SIRUNYAN 2020BI based on 137 fb**-1 of p p data at sqrt(s) = 13 TeV. Pair production of vector-like b^' is seached for with each b^' decaying into Z b or h b. Analysis focuses on final states consisting of jets from six quarks. Mass limits are obtained for a variety of branching ratios of b^' decays.


pdgid: Q008BPP
text:
AABOUD 2018CE based on 36.1 fb**-1 of proton-proton data taken at sqrt(s) = 13 TeV. Events including a same-sign lepton pair are used. The limit is for a singlet model, assuming the branching ratios of b^' into Z b, W t and H b as predicted by the model.


pdgid: Q008BPP
text:
AABOUD 2018CL, AABOUD 2018CP based on 36.1 fb**-1 of p p data at sqrt(s) = 13 TeV. The limit is for the pair-produced vector-like b^' using all-hadronic final state. The analysis is particularly powerful for the b^' --> h b mode. Assuming the pure decay only in this mode sets a limit mass(b^') > 1010 GeV.


pdgid: Q008BPP
text:
AABOUD 2018CP based on 36.1 fb**-1 of p p data at sqrt(s) = 13 TeV. Pair and single production of vector-like b^' are seached for with at least one b^' decaying into Z b. In the case of B(b^' --> Z b) = 1, the limit is mass(b^') > 1220 GeV.


pdgid: Q008BPP
text:
The limit is for the singlet model, assuming that the branching ratios into W t, Z b, h b add up to one.


pdgid: Q008BPP
text:
The limit is for the doublet model, assuming that the branching ratios into W t, Z b, h b add up to one.


pdgid: Q008BPP
text:
AABOUD 2018CR based on 36.1 fb**-1 of p p data at sqrt(s) = 13 TeV. A combination of searches for the pair-produced vector-like b^' in various decay channels (b^' --> W t, Z b, h b). Also a model-independent limit is obtained as mass(b^') > 1.03 TeV, assuming that the branching ratios into Z b, W t, and h b add up to one.


pdgid: Q008BPP
text:
The limit is for b^' in a weak isospin doublet (t^',b^') and |V(t^'b)| << |V(tb^')|. For a b^' in a doublet with a charge -4/3 vector-like quark, the limit mass(b^') > 1.14 TeV is obtained.


pdgid: Q008BPP
text:
SIRUNYAN 2017AU based on 2.3 -- 2.6 fb**-1 of p p data at sqrt(s) = 13 TeV. Limit on pair-produced singlet vector-like b^' using one lepton and several jets. The mass bound is given for a b^' transforming as a singlet under the electroweak symmetry group, assumed to decay through W, Z or Higgs boson (which decays to jets) and to a third generation quark.


pdgid: Q008BPP
text:
AAD 2015Z based on 20.3 fb**-1 of p p data at sqrt(s) = 8 TeV. Used events with lepton + notET + >=6j (>=1 b) and at least one pair of jets from weak boson decay, primarily designed to select the signature b^' bbar^' --> W W t tbar --> W W W W b bbar. This is a limit on pair-produced vector-like b^'. The lower mass limit is 640 GeV for a vector-like singlet b^'.


pdgid: Q008BPP
text:
Result is based on 1.1 fb**-1 of data. No signal is found for the search of long-lived particles which decay into final states with two electrons or photons, and upper bound on the cross section times branching fraction is obtained for 2 < c < 7000 mm; see Fig. 3. 95% CL excluded region of b^' lifetime and mass is shown in Fig. 4.


pdgid: Q008BPP
text:
ACOSTA 2003 looked for long-lived fourth generation quarks in the data sample of 90 pb**-1 of sqrt(s)=1.8 TeV p pbar collisions by using the muon-like penetration and anomalously high ionization energy loss signature. The corresponding lower mass bound for the charge (2/3)e quark (t^') is 220 GeV. The t^' bound is higher than the b^' bound because t^' is more likely to produce charged hadrons than b^'. The 95% CL upper bounds for the production cross sections are given in their Fig. 3.


pdgid: Q008BPP
text:
AAD 2023AG based on 139 fb**-1 of p p data at sqrt(s) = 13 TeV. Pair production of vector-like top or bs is searched for in the mode 1lepton + >=4j(>=1b-tagged) + notET. The data are consistent with the SM background predictions and limits are obtained for different branching ratios. Masses below 1.59 TeV are excluded assuming a mass-degenerate vector-like doublet (t^',b^') model.


pdgid: Q008BPP
text:
AAD 2023AV based on 139 fb**-1 of p p data at sqrt(s) = 13 TeV. Pair production of vector-like b^' is searched for in the mode lepton+- lepton-+ +  >=2j (>=1b-tagged) + notET or with 3lepton. The data are consistent with the  SM background predictions and limits are obtained for different branching ratios.


pdgid: Q008BPP
text:
SIRUNYAN 2019AQ based on 35.9 fb**-1 of p p data at sqrt(s) = 13 TeV. Pair production of vector-like b^' is seached for with one b^' decaying into Z b and the other b^' decaying into W t, Z b, h b. Events with an opposite-sign lepton pair consistent with coming from Z and jets are used. Mass limits are obtained for a variety of branching ratios of b^'.


pdgid: Q008BPP
text:
SIRUNYAN 2019BW based on 35.9 fb**-1 of p p data at sqrt(s) = 13 TeV. The limit is for the pair-produced vector-like b^' using all-hadronic final state. The analysis is made for the Z b, W t, h b modes and mass limits are obtained for a variety of branching ratios.


pdgid: Q008BPP
text:
AABOUD 2018AW based on 36.1 fb**-1 of p p data at sqrt(s) = 13 TeV. The limit is for the pair-produced vector-like b^' using lepton-plus-jets final state. The search is also sensitive to the decays into Z b and H b final states.


pdgid: Q008BPP
text:
SIRUNYAN 2018BM based on 35.9 fb**-1 of p p data at sqrt(s) = 13 TeV. The limit is for the pair-produced vector-like b^'. Three channels (single lepton, same-charge 2 leptons, or at least 3 leptons) are considered for various branching fraction combinations. Assuming B(t W) = 1, the limit is 1240 GeV and for B(b Z) = 1 it is 960 GeV.


pdgid: Q008BPP
text:
SIRUNYAN 2018Q based on 19.7 fb**-1 of p p data at sqrt(s) = 8 TeV. The limit is for the pair-produced vector-like b^' that couple only to light quarks. Upper cross section limits on the single production of a b^' and constraints for other decay channels (Z q and H q) are also given in the paper.


pdgid: Q008BPP
text:
KHACHATRYAN 2016AN based on 19.7 fb**-1 of p p data at sqrt(s) = 8 TeV. Limit on pair-produced vector-like b^' using 1, 2, and >2 leptons as well as fully hadronic final states. Other limits depending on the branching fractions to t W, b Z, and b H are given in Table IX.


pdgid: Q008BPP
text:
AAD 2015AR based on 20.3 fb**-1 of p p data at sqrt(s) = 8 TeV. Used lepton-plus-jets final state. See Fig. 24 for mass limits in the plane of B(b^' --> W t) vs. B(b^' --> H b) from b^' bbar^' --> H b + X searches.


pdgid: Q008BPP
text:
AAD 2015BY based on 20.3 fb**-1 of p p data at sqrt(s) = 8 TeV. Limit on pair-produced vector-like b^' assuming the branching fractions to W, Z, and h modes of the singlet model. Used events containing >=2lepton + notET + >=2j (>=1 b) and including a same-sign lepton pair.


pdgid: Q008BPP
text:
AAD 2015BY based on 20.3 fb**-1 of p p data at sqrt(s) = 8 TeV. Limit on pair-produced chiral b^'-quark. Used events containing >=2lepton + notET + >=2j (>=1 b) and including a same-sign lepton pair.


pdgid: Q008BPP
text:
AAD 2015CN based on 20.3 fb**-1 of p p data at sqrt(s) = 8 TeV. Limit on pair-production of chiral b^'-quark. Used events with lepton + notET + >=4j (non-b-tagged). Limits on a heavy vector-like quark, which decays into W q, Z q, h q, are presented in the plane B(Q --> W q) vs. B(Q --> h q) in Fig. 12.


pdgid: Q008BPP
text:
Based on 20.3 fb**-1 of p p data at sqrt(s) = 8 TeV. No significant excess over SM expectation is found in the search for pair production or single production of b^' in the events with dilepton from a high pT Z and additional jets (>= 1 b-tag). If instead of B(b^' --> W t) = 1 an electroweak singlet with B(b^' --> W t) ~ 0.45 is assumed, the limit reduces to 685 GeV.


pdgid: Q008BPP
text:
Based on 5.0 fb**-1 of p p data at sqrt(s) = 7 TeV. CHATRCHYAN 2013I looked for events with one isolated electron or muon, large notET, and at least four jets with large transverse momenta, where one jet is likely to originate from the decay of a bottom quark.


pdgid: Q008BPP
text:
Based on 1.04 fb**-1 of p p data at sqrt(s) = 7 TeV. No signal is found for the search of heavy quark pair production that decay into W and a t quark in the events with a high pT isolated lepton, large notET, and at least 6 jets in which one, two or more dijets are from W.


pdgid: Q008BPP
text:
Based on 2.0 fb**-1 of p p data at sqrt(s) = 7 TeV. No b^' --> Z b invariant mass peak is found in the search of heavy quark pair production that decay into Z and a b quark in events with Z --> e+ e- and at least one b-jet. The lower mass limit is 358 GeV for a vector-like singlet b^' mixing solely with the third SM generation.


pdgid: Q008BPP
text:
Based on 1.04 fb**-1 of p p data at sqrt(s) = 7 TeV. No signal is found for the search of heavy quark pair production that decay into W and a quark in the events with dileptons, large notET, and >=2 jets.


pdgid: Q008BPP
text:
Based on 1.04 fb**-1 of p p data at sqrt(s) = 7 TeV. AAD 2012BE looked for events with two isolated like-sign leptons and at least 2 jets, large notET and H(T) > 350 GeV.


pdgid: Q008BPP
text:
Based on 5 fb**-1 of p p data at sqrt(s) = 7 TeV. CHATRCHYAN 2012BH searched for QCD and EW production of single and pair of degenerate 4'th generation quarks that decay to b W or t W. Absence of signal in events with one lepton, same-sign dileptons or tri-leptons gives the bound. With a mass difference of 25 GeV/c**2 between mass(t^') and mass(b^'), the corresponding limit shifts by about +-20 GeV/c**2.


pdgid: Q008BPP
text:
Based on 4.9 fb**-1 of p p data at sqrt(s) = 7 TeV. CHATRCHYAN 2012X looked for events with trileptons or same-sign dileptons and at least one b jet.


pdgid: Q008BPP
text:
Based on 4.8 fb**-1 of data in p pbar collisions at 1.96 TeV. AALTONEN 2011J looked for events with lepton + notET + >=5j (>=1 b or c). No signal is observed and the bound CS(b^'() bbar^'()) < 30 fb for mass(b^'()) > 375 GeV is found for B(b^'() --> W t) = 1.


pdgid: Q008BPP
text:
Based on 34 pb**-1 of data in p p collisions at 7 TeV. CHATRCHYAN 2011L looked for multi-jet events with trileptons or same-sign dileptons. No excess above the SM background excludes mass(b^'()) between 255 and 361 GeV at 95% CL for B(b^'() --> W t) = 1.


pdgid: Q008BPP
text:
Based on 2.7 fb**-1 of data in p pbar collisions at sqrt(s) = 1.96 TeV. AALTONEN 2010H looked for pair production of heavy quarks which decay into t W- or t W+, in events with same sign dileptons (e or mu), several jets and large missing E(T). The result is obtained for b^'() which decays into t W-. For the charge 5/3 quark (T_{{5/3}}()) which decays into t W+, mass(T_{{5/3}}()) > 365 GeV (95% CL) is found when it has the charge -1/3 partner B of the same mass.


pdgid: Q008BPP
text:
FLACCO 2010 result is obtained from AALTONEN 2010H result of mass(b^'())> 338 GeV, by relaxing the condition B(b^'() --> W t) = 100% when mass(b^'())> mass(t^'()).


pdgid: Q008BPP
text:
HUANG 2008 reexamined the b^' mass lower bound of 268 GeV obtained in AALTONEN 2007C that assumes B(b^' --> Z b) = 1, which does not hold for mass(b^') > 255 GeV. The lower mass bound is given in the plane of sin**2(theta(t b^')) and mass(b^').


pdgid: Q008BPP
text:
Result is based on 1.06 fb**-1 of data. No excess from the SM Z+jet events is found when Z decays into e e or mu mu. The mass(b^') bound is found by comparing the resulting upper bound on CS(b^' bbar^') [1-(1-B(b^' --> Z b))**2] and the LO estimate of the b^' pair production cross section shown in Fig. 38 of the article.


pdgid: Q008BPP
text:
AFFOLDER 2000 looked for b^' that decays in to b+Z. The signal searched for is b b Z Z events where one Z decays into e+ e- or mu+ mu- and the other Z decays hadronically. The bound assumes B(b^' --> Z b)= 100%. Between 100 GeV and 199 GeV, the 95%CL upper bound on sigma(b^' --> bbar^')xB**2(b^' --> Z b) is also given (see their Fig. 2).


pdgid: Q008BPP
text:
ABE 1998N looked for Z --> e+ e- decays with displaced vertices. Quoted limit assumes B(b^' --> Z b)=1 and c tau_b^'=1 cm. The limit is lower than mass(Z)+mass(b) (~96 GeV) if c tau>22 cm or c tau<0.009 cm. See their Fig. 4.


pdgid: Q008BPP
text:
ABACHI 1997D searched for b^' that decays mainly via FCNC. They obtained 95%CL upper bounds on B(b^' bbar^' --> gamma + 3 jets) and B(b^' bbar^' --> 2gamma + 2 jets), which can be interpreted as the lower mass bound mass(b^')>mass(Z)+mass(b).


pdgid: Q008BPP
text:
ABACHI 1995F bound on the top-quark also applies to b^' and t^' quarks that decay predominantly into W. See FROGGATT 1997.


pdgid: Q008BPP
text:
MUKHOPADHYAYA 1993 analyze CDF dilepton data of ABE 1992G in terms of a new quark decaying via flavor-changing neutral current. The above limit assumes B(b^' --> b lepton+ lepton-)=1%. For an exotic quark decaying only via virtual Z [B(b lepton+ lepton-) = 3%], the limit is 85 GeV.


pdgid: Q008BPP
text:
ABE 1992 dilepton analysis limit of >85 GeV at CL=95% also applies to b^' quarks, as discussed in ABE 1990B.


pdgid: Q008BPP
text:
AKESSON 1990 searched for events having an electron with p(T) > 12 GeV, missing momentum > 15 GeV, and a jet with E(T) > 10 GeV, |eta| < 2.2, and excluded mass(b^') between 30 and 69 GeV.


pdgid: Q008BPP
text:
For the reduction of the limit due to non-charged-current decay modes, see Fig. 19 of ALBAJAR 1990B.


pdgid: Q008BPP
text:
ALBAJAR 1988 study events at Ecm = 546 and 630 GeV with a muon or isolated electron, accompanied by one or more jets and find agreement with Monte Carlo predictions for the production of charm and bottom, without the need for a new quark. The lower mass limit is obtained by using a conservative estimate for the b^' bbar^' production cross section and by assuming that it cannot be produced in W decays. The value quoted here is revised using the full O(alpha(s)**3) cross section of ALTARELLI 1988.


pdgid: Q008BPS
text:
TUMASYAN 2022O based on 138 fb**-1 of data in p p collisions at 13 TeV. No   significant excess over SM expectation is found in the search for a left-handed b^' assuming   100% decay to t W using a t-tagged jet and a lepton from W. The model assumes  that the b^' has the excited quark couplings. The bound is from a statistical combination with  an earlier analysis by SIRUNYAN 2021AG. The 95% CL bounds are also set as 3.0, 3.0, and 3.2 TeV, respectively, for left-handed, right-handed, and vector-like couplings.


pdgid: Q008BPS
text:
ABAZOV 2011F based on 5.4 fb**-1 of data in ppbar collisions at 1.96 TeV. ABAZOV 2011F looked for single production of b^'() via the W or Z coupling to the first generation up or down quarks, respectively. Model independent cross section limits for the single production processes p pbar --> b^'() q --> W u q, and p pbar --> b^'() q --> Z d q are given in Figs. 3 and 4, respectively, and the mass limits are obtained for the model of ATRE 2009 with degenerate bi-doublets of vector-like quarks.


pdgid: Q008BPS
text:
AAD 2023CQ based on 139 fb**-1 of data in p p collisions at 13 TeV. No significant excess over SM expectation is found. Limits on mass and production cross section of a vector-like b^' are obtained in several theoretical scenarios determined by the couplings betwen b^' and W, Z, h.


pdgid: Q008BPS
text:
SIRUNYAN 2021AG based on 137 fb**-1 of data in p p collisions at 13 TeV. No significant excess over SM expectation is found in the search for a left-handed b^' assuming  100% decay to t W using all hadronic final states, where t and W are tagged as single jets, respectively. The model assumes that the b^' has the excited quark couplings. The  95% CL bounds are also set as 2.8 and 3.1 TeV, respectively, for the right-handed and vector-like couplings.


pdgid: Q008BPS
text:
SIRUNYAN 2019AI based on 35.9 fb**-1 of p p data at sqrt(s) = 13 TeV. Exclusion limits are set on the product of the production cross section and branching fraction for the b^'(-1/3) + b and b^'(-1/3) + t modes as a function of the vector-like quark mass in Figs. 7 and 8 and in Tab. 2 for relative vector-like quark widths between 1 and 30% for left- and right-handed vector-like quark couplings. No significant deviation from the SM prediction is observed.


pdgid: Q008BPS
text:
AAD 2016AH based on 20.3 fb**-1 of data in p p collisions at 8 TeV. No significant excess over SM expectation is found in the search for a vector-like b^' in the single-lepton and dilepton channels (lepton or lepton lepton) + 1,2,3 j (>=1b). The model assumes that the b^' has the excited quark couplings.


pdgid: Q008BPS
text:
Based on 19.7 fb**-1 of data in p p collisions at 8 TeV. Limit on left-handed b^' assuming 100% decay to t W and using all-hadronic, lepton + jets, and dilepton final states.


pdgid: Q008BPS
text:
Based on 19.7 fb**-1 of data in p p collisions at 8 TeV. Limit on right-handed b^' assuming 100% decay to t W and using all-hadronic, lepton + jets, and dilepton final states.


pdgid: Q008BPS
text:
Based on 19.7 fb**-1 of data in p p collisions at 8 TeV. Limit on vector-like b^' assuming 100% decay to t W and using all-hadronic, lepton+jets, and dilepton final states.


pdgid: Q008BPE
text:
DECAMP 1990F looked for isolated charged particles, for isolated photons, and for four-jet final states. The modes b^' --> b g for B(b^' --> b g) > 65% b^' --> b gamma for B(b^' --> b gamma) > 5% are excluded. Charged Higgs decay were not discussed.


pdgid: Q008BPE
text:
ABDALLAH 2007 searched for b^' pair production at Ecm=196 -- 209 GeV, with 420 pb**-1. No signal leads to the 95% CL upper limits on B(b^' --> b Z) and B(b^' --> c W) for mass(b^') = 96 to 103 GeV.


pdgid: Q008BPE
text:
ADRIANI 1993G search for vector quarkonium states near Z and give limit on quarkonium-Z mixing parameter delta<(10 -- 30) GeV**2 (95%CL) for the mass 88 -- 94.5 GeV. Using Richardson potential, a 1S (b^' bbar^') state is excluded for the mass range 87.7 -- 94.7 GeV. This range depends on the potential choice.


pdgid: Q008BPE
text:
AKRAWY 1990B search was restricted to data near the Z peak at Ecm = 91.26 GeV at LEP. The excluded region is between 23.6 and 41.4 GeV if no H+ decays exist. For charged Higgs decays the excluded regions are between (mass(H+) +1.5 GeV) and 45.5 GeV.


pdgid: Q008BPE
text:
AKRAWY 1990J search for isolated photons in hadronic Z decay and derive B(Z --> b^' bbar^').B(b^' --> gamma X)/B(Z --> hadrons) < 2.2E-3. Mass limit assumes B(b^' --> gamma X) > 10%.


pdgid: Q008BPE
text:
ABE 1989E search at Ecm = 56-57 GeV at TRISTAN for multihadron events with a spherical shape (using thrust and acoplanarity) or containing isolated leptons.


pdgid: Q008BPE
text:
If the photonic decay mode is large (B(b^' --> b gamma) > 25%), the ABRAMS 1989C limit is 45.4 GeV. The limit for for Higgs decay (b^' --> c H-, H- --> cbar s) is 45.2 GeV.


pdgid: Q008BPE
text:
ADACHI 1989C search was at Ecm = 56.5-60.8 GeV at TRISTAN using multi-hadron events accompanying muons.


pdgid: Q008BPE
text:
IGARASHI 1988 searches for leptons in low-thrust events and gives DeltaR(b^') < 0.26 (95% CL) assuming charged current decay, which translates to mass(b^') > 24.4 GeV.


pdgid: Q008BPE
text:
SAGAWA 1988 set limit CS(top) < 6.1 pb at CL=95% for top-flavored hadron production from event shape analyses at Ecm = 52 GeV. By using the quark parton model cross-section formula near threshold, the above limit leads to lower mass bounds of 23.8 GeV for charge -1/3 quarks.


pdgid: Q008BPE
text:
ADEVA 1986 give 95%CL upper bound on an excess of the normalized cross section, DeltaR, as a function of the minimum c.m. energy (see their figure 3). Production of a pair of 1/3 charge quarks is excluded up to Ecm = 45.4 GeV.


pdgid: Q008BPE
text:
ALTHOFF 1984C narrow state search sets limit Gamma(e+ e-)*B(hadrons) <2.4 keV CL = 95% and heavy charge 1/3 quark pair production m >21 GeV, CL = 95%.


pdgid: Q008BPE
text:
ALTHOFF 1984I exclude heavy quark pair production for 7 <m <19 GeV (1/3 charge) using aplanarity distributions (CL = 95%).


pdgid: Q009TPP
text:
AAD 2024N based on 140 fb**-1 of p p data at sqrt(s) = 13 TeV. Pair production of vector-like t^' is searched for in the lepton+jets mode. The limit is for t^' in a weak isospin doublet. The data are consistent with the SM background predictions and limits are obtained for different branching ratios. The same limits also apply to t^' of charge -4/3.


pdgid: Q009TPP
text:
AAD 2024N based on 140 fb**-1 of p p data at sqrt(s) = 13 TeV. Pair production of vector-like t^' is searched for in the lepton+jets mode. The limit is for a singlet model. The data are consistent with the SM background predictions and limits are obtained for different branching ratios.


pdgid: Q009TPP
text:
AAD 2023AV based on 139 fb**-1 of p p data at sqrt(s) = 13 TeV. Pair production of   vector-like t^' is searched for in the mode lepton+- lepton-+ +  >=2j (>=1b-tagged) + notET or with 3lepton. The data are consistent with the  SM background predictions and limits are obtained for different branching ratios.


pdgid: Q009TPP
text:
TUMASYAN 2023AX based on 138 fb**-1 of p p data at sqrt(s) = 13 TeV. A vector-like t^' is seached for in the t + H (H --> gamma gamma) decay channel. EW production via a coupling to third-generation quarks of kappa(T) = 0.25 is assumed. The branching fractions are assumed to be 50, 25, and 25%, respectively, for b W, t Z, and t H decays.


pdgid: Q009TPP
text:
TUMASYAN 2023V based on 138 fb**-1 of p p data at sqrt(s) = 13 TeV. Pair production   of vector-like t^' is seached for in the single-lepton, same-sign charge dilepton and  multi-lepton  channels. The data are consistent with the SM background predictions and limits are  obtained for  different branching ratios. Masses below 1.48 TeV are excluded for all decays to  third generation  quarks.


pdgid: Q009TPP
text:
AABOUD 2018CE based on 36.1 fb**-1 of proton-proton data taken at sqrt(s) = 13 TeV. Events including a same-sign lepton pair are used. The limit is for a singlet model, assuming the branching ratios of t^' into Z t, W b and H t as predicted by the model.


pdgid: Q009TPP
text:
AABOUD 2018CP based on 36.1 fb**-1 of p p data at sqrt(s) = 13 TeV. Pair and single production of vector-like t^' are seached for with at least one t^' decaying into Z t. In the case of B(t^' --> Z t) = 1, the limit is mass(t^') > 1340 GeV.


pdgid: Q009TPP
text:
The limit is for the singlet model, assuming that the branching ratios into Z t, W b, and H t add up to one.


pdgid: Q009TPP
text:
The limit is for the doublet model, assuming that the branching ratios into Z t, W b, and H t add up to one.


pdgid: Q009TPP
text:
AABOUD 2018CR based on 36.1 fb**-1 of p p data at sqrt(s) = 13 TeV. A combination of searches for the pair-produced vector-like t^' in various decay channels (t^' --> W b, Z t, h t). Also a model-independent limit is obtained as mass(t^') > 1.31 TeV, assuming that the branching ratios into Z t, W b and h t add up to one.


pdgid: Q009TPP
text:
SIRUNYAN 2018BM based on 35.9 fb**-1 of p p data at sqrt(s) = 13 TeV. The limit is for the pair-produced vector-like t^'. Three channels (single lepton, same-charge 2 leptons, or at least 3 leptons) are considered for various branching fraction combinations. Assuming B(t H) = 1, the limit is 1270 GeV and for B(t Z) = 1 it is 1300 GeV.


pdgid: Q009TPP
text:
SIRUNYAN 2018Q based on 19.7 fb**-1 of p p data at sqrt(s) = 8 TeV. The limit is for the pair-produced vector-like t^' that couple only to light quarks. Constraints for other decay channels (Z q and H q) are also given in the paper.


pdgid: Q009TPP
text:
SIRUNYAN 2017AU based on 2.3-2.6 fb**-1 of p p data at sqrt(s) = 13 TeV. Limit on pair-produced singlet vector-like t^' using one lepton and several jets. The mass bound is given for a t^' transforming as a singlet under the electroweak symmetry group, assumed to decay through W, Z or Higgs boson (which decays to jets) and to a third generation quark. For a doublet, the limit is >830 GeV. Other limits are also given in the paper.


pdgid: Q009TPP
text:
Based on 20.3 fb**-1 of p p data at sqrt(s) = 8 TeV. No significant excess over SM expectation is found in the search for pair production or single production of t^' in the events with dilepton from a high pT Z and additional jets (>= 1 b-tag). If instead of B(b^' --> W t) = 1 an electroweak singlet with B(b^' --> W t) ~ 0.45 is assumed, the limit reduces to 685 GeV.


pdgid: Q009TPP
text:
Based on 1.04 fb**-1 of data in p p collisions at 7 TeV. AAD 2012C looked for t^'() tbar^'() production followed by t^'() decaying into a top quark and X, an invisible particle, in a final state with an isolated high-P(T) lepton, four or more jets, and a large missing transverse energy. No excess over the SM t tbar production gives the upper limit on t^'() tbar^'() production cross section as a function of mass(t^'()) and mass(X). The result is obtained for B(t^'() --> W t) = 1.


pdgid: Q009TPP
text:
Based on 5 fb**-1 of p p data at sqrt(s) = 7 TeV. CHATRCHYAN 2012BH searched for QCD and EW production of single and pair of degenerate 4'th generation quarks that decay to W b or W t. Absence of signal in events with one lepton, same-sign dileptons or tri-leptons gives the bound. With a mass difference of 25 GeV/c**2 between mass(t^') and mass(b^'), the corresponding limit shifts by about +-20 GeV/c**2.


pdgid: Q009TPP
text:
Based on 5.0 fb**-1 of p p data at sqrt(s) = 7 TeV. CHATRCHYAN 2012P looked for t^' tbar^' production events with two isolated high pT leptons, large notET, and 2 high pT jets with b-tag. The absence of signal above the SM background gives the limit for B(t^' --> W b) = 1.


pdgid: Q009TPP
text:
AAD 2023AG based on 139 fb**-1 of p p data at sqrt(s) = 13 TeV. Pair production of vector-like top or bs is searched for in the mode 1lepton + >=4j(>=1b-tagged) +  notET. The data are consistent with the SM background predictions and limits are obtained for  different branching ratios. Masses below 1.59 TeV are excluded assuming a mass-degenerate vector-like doublet (t^',b^') model.


pdgid: Q009TPP
text:
SIRUNYAN 2019AQ based on 35.9 fb**-1 of p p data at sqrt(s) = 13 TeV. Pair production of vector-like t^' is seached for with one t^' decaying into Z t and the other t^' decaying into W b, Z t, h t. Events with an opposite-sign lepton pair consistent with coming from Z and jets are used. Mass limits are obtained for a variety of branching ratios of t^'.


pdgid: Q009TPP
text:
SIRUNYAN 2019BW based on 35.9 fb**-1 of p p data at sqrt(s) = 13 TeV. The limit is for the pair-produced vector-like t^' using all-hadronic final state. The analysis is made for the W b, Z t, h t modes and mass limits are obtained for a variety of branching ratios.


pdgid: Q009TPP
text:
AABOUD 2018CL based on 36.1 fb**-1 of p p data at sqrt(s) = 13 TeV. The limit is for the pair-produced vector-like t^' using all-hadronic final state. The analysis is also made for the W b, Z t, h t modes and mass limits are obtained for a variety of branching ratios.


pdgid: Q009TPP
text:
SIRUNYAN 2018W based on 35.8 fb**-1 of p p data at sqrt(s) = 13 TeV. The limit is for the vector-like t^' pair-produced by strong interaction using lepton-plus-jets mode and assuming that B(t^' --> W b) is 100%. Generally the measurement sets upper limits on the product of the production cross section and branching faction to W b for any new pair-produced heavy quark decaying to this channel as a narrow resonance.


pdgid: Q009TPP
text:
AABOUD 2017L based on 36.1 fb**-1 of p p data at sqrt(s) = 13 TeV. No signal is found in the search for heavy quark pair production that decay into Z t followed by Z --> nu nu in the events with one lepton, large notET, and >=4 jets. The lower mass limit 0.87 (1.05) TeV is obtained for the singlet (doublet) model with other possible decay modes.


pdgid: Q009TPP
text:
AAD 2015AR based on 20.3 fb**-1 of p p data at sqrt(s) = 8 TeV. Used lepton-plus-jets final state. See Fig. 20 for mass limits in the plane of B(t^' --> H t) vs. B(t^' --> W b) from a  combination of t^' tbar^' --> W b + X and t^' tbar^' --> H t + X searches. Any branching ratio scenario is excluded for mass below 715 GeV.


pdgid: Q009TPP
text:
AAD 2015BY based on 20.3 fb**-1 of p p data at sqrt(s) = 8 TeV. Limit on pair-produced vector-like t^' assuming the branching fractions to W, Z, and h modes of the singlet model. Used events containing >=2lepton + notET + >=2j (>=1 b) and including a same-sign lepton pair.


pdgid: Q009TPP
text:
KHACHATRYAN 2015AI based on 19.7 fb**-1 of p p data at sqrt(s) = 8 TeV. The search exploits all-hadronic final states by tagging boosted Higgs boson using jet substructure and b-tagging.


pdgid: Q009TPP
text:
Based on 19.5 fb**-1 of p p data at sqrt(s) = 8TeV. The t^' quark is pair produced and is assumed to decay into three different final states of bW, tZ, and th. The search is carried out using events with at least one isolated lepton.


pdgid: Q009TPP
text:
Based on 4.7 fb**-1 of p p data at sqrt(s) = 7 TeV. No signal is found for the search of heavy quark pair production that decay into  W and a b quark in the events with a high pT isolated lepton, large notET and at least 3 jets (>= 1 b-tag). Vector-like quark of charge 2/3 with 400 < mass(t^') < 550 GeV and B(t^' --> W b) > 0.63 is excluded at 95% CL.


pdgid: Q009TPP
text:
Based on 1.04 fb**-1 of p p data at sqrt(s) = 7 TeV. No signal is found in the search for pair produced heavy quarks that decay into W boson and a b quark in the events with a high pT isolated lepton, large notET and at least 3 jets (>=1 b-tag).


pdgid: Q009TPP
text:
Based on 5.0 fb**-1 of p p data at sqrt(s) = 7 TeV. CHATRCHYAN 2012BC looked for t^' tbar^' production events with a single isolated high pT lepton, large notET and at least 4 high pT jets with a b-tag. The absence of signal above the SM background gives the limit for B(t^' --> W b) = 1.


pdgid: Q009TPP
text:
Based on 5.7 fb**-1 of data in p pbar collisions at 1.96 TeV. AALTONEN 2011AH looked for t^'() tbar^'() production followed by t^'() decaying into a top quark and X, an invisible particle, in the all hadronic decay mode of t tbar. No excess over the SM t tbar production gives the upper limit on t^'() tbar^'() production cross section as a function of mass(t^'()) and mass(X). The result is obtained for B(t^'() --> X t) = 1.


pdgid: Q009TPP
text:
Based on 5.6 fb**-1 of data in ppbar collisions at 1.96 TeV. AALTONEN 2011AL looked for lepton + >=4j events and set upper limits on CS(t^'() tbar^'()) as functions of mass(t^'()).


pdgid: Q009TPP
text:
Based on 4.8 fb**-1 of data in p pbar collisions at 1.96 TeV. AALTONEN 2011O looked for t^'() tbar^'() production signal when t^'() decays into a top quark and X, an invisible particle, in lepton + notET + jets channel. No excess over the SM t tbar production gives the upper limit on t^'() tbar^'() production cross section as a function of mass(t^'()) and mass(X). The result is obtained for B(t^'() --> X t) = 1.


pdgid: Q009TPP
text:
Based on 5.3 fb**-1 of data in p pbar collisions at 1.96 TeV. ABAZOV 2011Q looked for lepton + notET + >=4j events and set upper limits on CS(t^'() tbar^'()) as functions of mass(t^'()).


pdgid: Q009TPP
text:
HUANG 2008 reexamined the t^' mass lower bound of 256 GeV obtained in AALTONEN 2008H that assumes B(b^' --> q Z) = 1 for q = u, c which does not hold when mass(b^')<mass(t^')-mass(W) or the mixing sin**2(theta(b t^')) is so tiny that the decay occurs outside of the vertex detector. Fig. 1 gives that lower bound on mass(t^') in the plane of sin**2(theta(b t^')) and mass(b^').


pdgid: Q009TPP
text:
Searches for pair production of a new heavy top-like quark t^' decaying to a W boson and another quark by fitting the observed spectrum of total transverse energy and reconstructed t^' mass in the lepton + jets events.


pdgid: Q009TP5
text:
AAD 2023AG based on 139 fb**-1 of p p data at sqrt(s) = 13 TeV. Pair production of  vector-like top or b^' is seached for in the mode 1lepton + >=4j(>=1b-tagged) + notET.  The data are consistent with the SM background predictions and limits are obtained for different branching ratios.


pdgid: Q009TP5
text:
SIRUNYAN 2019T based on 35.9 fb**-1 of p p data at sqrt(s) = 13 TeV. Signals are searched in the final states of t^' pair production, with same-sign leptons (which come from a t^' decay) or a single lepton (which comes from a W out of 4Ws), along with jets, and no excess over the SM expectation is found.


pdgid: Q009TP5
text:
AABOUD 2018CE based on 36.1 fb**-1 of proton-proton data taken at sqrt(s) = 13 TeV. Events including a same-sign lepton pair are used. The limit is for the pair-produced vector-like t^'. With single t^' production included, assuming t^' t W coupling of one, the limit is mass(t^') > 1.6 TeV.


pdgid: Q009TP5
text:
SIRUNYAN 2017J based on 2.3 fb**-1 of p p data at sqrt(s) = 13 TeV. Signals are searched in the final states of t^' pair production, with same-sign leptons (which come from a t^' decay) or a single lepton (which comes from a W out of 4Ws), along with jets, and no excess over the SM expectation is found.


pdgid: Q009TP5
text:
AAD 2015BY based on 20.3 fb**-1 of p p data at sqrt(s) = 8 TeV. Limit on t^'(5/3) in pair and single production assuming its coupling to W t is equal to one. Used events containing >=2lepton + notET + >=2j (>=1 b) and including a same-sign lepton pair.


pdgid: Q009TP5
text:
AAD 2015Z based on 20.3 fb**-1 of p p data at sqrt(s) = 8 TeV. Used events with  lepton + notET + >=6j (>=1 b) and at least one pair of jets from weak boson decay, sensitive to the final state b bbar W+ W- W+ W-.


pdgid: Q009TP5
text:
CHATRCHYAN 2014T based on 19.5 fb**-1 of p p data at sqrt(s) = 8 TeV. Non-observation of anomaly in H_{{T}} distribution in the same-sign dilepton events leads to the limit when pair produced t^'(5/3) quark decays exclusively into t and W+, resulting in the final state with b bbar W+ W- W+ W-.


pdgid: Q009TP5
text:
AABOUD 2018AW based on 36.1 fb**-1 of p p data at sqrt(s) = 13 TeV. Limit on t^'(5/3) in pair production assuming its coupling to W t is equal to one. Lepton-plus-jets final state is used, characterized by lepton + notET + jets (>=1 b-tagged).


pdgid: Q009TPS
text:
AAD 2024AK based on 139 fb**-1 of p p data at sqrt(s) = 13 TeV. No significant excess over SM expectation is found in the search for a vector-like t^' in events with a reconstructed boosted top quark and a large missing transverse momentum. B(t^' --> W b) + B(t^' --> t Z) + B(t^' --> t H) = 1 and B(t^' --> t Z) = B(t^' --> t H) = 1/4 are assumed.


pdgid: Q009TPS
text:
AAD 2016AV based on 20.3 fb**-1 of p p data at sqrt(s) = 8 TeV. No significant excess over SM expectation is found in the search for a fully reconstructed vector-like t^' in the mode lepton + notET + >=2j (>=1b). A veto on massive large-radius jets is used to reject the t tbar background.


pdgid: Q009TPS
text:
ABAZOV 2011F based on 5.4 fb**-1 of data in ppbar collisions at 1.96 TeV. It looked for single production of t^'() via the Z or E coupling to the first generation up or down quarks, respectively. Model independent cross section limits for the single production processes p pbar --> t^'() q -->(W d)q, and p pbar --> t^'() q -->(Z d)q are given in Figs. 3 and 4, respectively, and the mass limits are obtained for the model of ATRE 2009 with degenerate bi-doublets of vector-like quarks.


pdgid: Q009TPS
text:
AAD 2024V based on 139 fb**-1 of p p data at sqrt(s) = 13 TeV. No significant excess over SM expectation is found in the search for a vector-like t^' in the Z t decay channel, which consists of a pair of opposite-sign leptons from a Z-boson, b-tagged jets and forward jets. The mass range above 1 TeV is targeted and 95% CL limits on the mass and coupling strength of t^' are set, in the singlet and doublet scenarios.


pdgid: Q009TPS
text:
HAYRAPETYAN 2024AR based on 138 fb**-1 of p p data at sqrt(s) = 13 TeV. No deviation from the SM expectation is found in the search for a vector-like t^' in the all-hadronic final state where the t^' is reconstructed as five jets, with three of them being b-jets. 95% CL upper limits are set on the product of the t^'-production cross section and the branching ratio B(t^' --> t Z) or B(t^' --> t H).


pdgid: Q009TPS
text:
AAD 2022G based on 139 fb**-1 of p p data at sqrt(s) = 13 TeV. No significant excess over SM expectation is found in the search for a vector-like t^' in the H t decay channel, where H and t are reconstructed as single jets. The mass range between 1.0 and 2.3 TeV is targeted and 95% CL limits on the production section times the decay branching fraction are set depending on the coupling and mass of t^'.


pdgid: Q009TPS
text:
TUMASYAN 2022X based on 137 fb**-1 of p p data at sqrt(s) = 13 TeV. No significant excess over SM expectation is found in the search for a vector-like t^' in the Z t decay channel, where Z decays to neutrinos and t decays hadronically. The 95% CL limits on the production section times the decay branching fraction are set depending on the coupling and mass of t^'.


pdgid: Q009T5S
text:
SIRUNYAN 2019AI based on 35.9 fb**-1 of p p data at sqrt(s) = 13 TeV. Exclusion limits are set on the product of the production cross section and branching fraction for the b^'(-1/3) + t and t^'(5/3) + t modes as a function of the vector-like quark mass in Fig. 8 and Tab. 2 for relative vector-like quark widths between 1 and 30% for left- and right-handed vector-like quark couplings. No significant deviation from the SM prediction is observed.


pdgid: S027C
text:
CHATRCHYAN 2013AR limits assume pair-produced long-lived spin-1/2 particles neutral under SU(3)(C) and SU(2)(L).


pdgid: S027FR
text:
HUENTRUP 1996 quote 95% CL limits for production of fragments with charge differing by as much as +-1/3 (in units of e) for charge 6<=Z<=10.


pdgid: S027FR
text:
BUSKULIC 1993C limits for inclusive quark production are more conservative if the ALEPH hadronic fragmentation function is assumed.


pdgid: S027FR
text:
CECCHINI 1993 limit at 90%CL for 23/3 <=Z<=40/3, for 16A GeV O, 14.5A Si, and 200A S incident on Cu target. Other limits are 2.3E-4 for 17/3<=Z<=20/3 and 1.2E-4 for 20/3 <=Z<=23/3.


pdgid: S027FR
text:
GHOSH 1992 reports measurement of spallation fragment charge based on ionization in emulsion. Out of 650 measured tracks, 2 were consistent with charge 5e/3, and 4 with 7e/3.


pdgid: S027FR
text:
HE 1991 limits are for charges of the form N+-1/3 from 23/3 to 38/3, and correspond to cross-section limits of 380mub (Pb) and 320mub (Cu).


pdgid: S027F
text:
ALEMANNO 2022 uses data from the DAMPE satellite, with calorimetry and tracking to search for  fractionally charged particles with q =+-2/3e with a exposure time of  2.3E7 s.


pdgid: S027F
text:
See AGNESE 2015 Fig.6 for limits on vertical density as function of charge extending to |q|/e < 1/10.


pdgid: S027F
text:
AMBROSIO 2000C limit is below 11E-15 for 0.25<q/e<0.5, and is changing rapidly near q/e=2/3, where it is 2E-14.


pdgid: S027RHO
text:
95% CL limit for fractional charge particles with 0.18e<=|Q(residual)|<=0.82e in total of 70.1 mg of silicone oil.


pdgid: S027RHO
text:
95% CL limit for particles with fractional charge |Q(residual)|>0.16e in total of 17.4~mg of silicone oil.


pdgid: S027RHO
text:
Note that in PHILLIPS 1988 these authors report a subtle magnetic effect which could account for the apparent fractional charges.


pdgid: S008M
text:
DAUM 2019 value is based on their previous (1991+1996) measurements of the mu+ momentum of 29.79200+-0.00011 MeV for pi+ decay at rest. It also uses mass(mu) = 105.6583745+-0.0000024 MeV, and assumes conservatively mass(nu_{{mu}}) = 2.0+-2.0 MeV. It is the most precise charged pion mass determination.


pdgid: S008M
text:
JECKELMANN 1994 Solution B (dominant 2-electron K-shell occupancy), chosen for consistency with positive mass**2(nu_{{mu}}).


pdgid: S008M
text:
ASSAMAGAN 1996 measures the mu+ momentum p_{{mu}} in pi+ --> mu+ nu_mu decay at rest to be 29.79200+-0.00011 MeV/c. Combined with the mu+ mass and the assumption mass(nu_{{mu}}) = 0, this gives the pi+ mass above; if mass(nu_{{mu}})> 0, mass(pi+) given above is a lower limit. Combined instead with mass(mu) and (assuming CPT) the pi- mass of JECKELMANN 1994, p(mu) gives an upper limit on mass(nu_{{mu}}) (see the nu_{{mu}}).


pdgid: S008M
text:
JECKELMANN 1994 Solution A (small 2-electron K-shell occupancy) in combination with either the DAUM 1991 or ASSAMAGAN 1994 pion decay muon momentum measurement yields a significantly negative mass**2(nu_{{mu}}). It is accordingly not used in our fits.


pdgid: S008M
text:
The DAUM 1991 value includes the ABELA 1984 result. The value is based on a measurement of the mu+ momentum for pi+ decay at rest, p_{{mu}} = 29.79179+-0.00053 MeV, uses mass(mu) = 105.658389+-0.000034 MeV, and assumes that mass(nu_{{mu}}) = 0. The last assumption means that in fact the value is a lower limit.


pdgid: S008M
text:
JECKELMANN 1986B gives mass(pi)/mass(e) = 273.12677(71). We use mass(e) = 0.51099906(15) MeV from COHEN 1987. The authors note that two solutions for the probability distribution of K-shell occupancy fit equally well, and use other data to choose the lower of the two possible pi+- masses.


pdgid: S008M
text:
These values are scaled with a new wavelength-energy conversion factor Vlambda = 1.23984244(37)x10**-6 eV m from COHEN 1987. The LU 1980 screening correction relies upon a theoretical calculation of inner-shell refilling rates.


pdgid: S008M
text:
This MARUSHENKO 1976 value used at the authors' request to use the accepted set of calibration gamma energies. Error increased from 0.0017 MeV to include QED calculation error of 0.0017 MeV (12 ppm).


pdgid: S008D
text:
The DAUM 1991 value assumes that mass(nu_{{mu}}) = 0 and uses our mass(mu) = 105.658389+-0.000034 MeV.


pdgid: S008R1
text:
BRESSI 1998 result is given for E(gamma)>1 MeV only. Result agrees with QED expectation, 2.283E-4 and does not confirm discrepancy of earlier experiment CASTAGNOLI 1958.


pdgid: S008R4
text:
STETZ 1978 is for an e- gamma opening angle > 132degrees. Obtains 3.7 when using same cutoffs as DEPOMMIER 1963B.


pdgid: S008R3
text:
POCANIC 2004 normalizes to e+ nu_e decays, using the PDG 2004 value B(pi+ --> e+ nu_e) = 1.230+-0.004E-4. We add their statistical (0.004E-8), systematic (0.004E-8) and systematic error due to the uncertainty of B(pi+ --> e+ nu_e) (0.003E-8) in quadrature.


pdgid: S008R3
text:
DEPOMMIER 1968 says the result of DEPOMMIER 1963 is at least 10% too large because of a systematic error in the pi0 detection efficiency, and that this may be true of all the previous measurements (also V. Soergel, private communication, 1972).


pdgid: S008R5
text:
This measurement by BARANOV 1992 is of the structure-dependent part of the decay. The value depends on values assumed for ratios of form factors.


pdgid: S008R6
text:
COOPER 1982 limit on nubar_{{e}} observation is here interpreted as a limit on lepton number violation.


pdgid: S008R7
text:
COOPER 1982 limit on nu_{{e}} observation is here interpreted as a limit on lepton family number violation.


pdgid: S008FV
text:
The BYCHKOV 2009 F(A) and F(V) results are highly (anti-)correlated: F(A) + 1.0286 F(V) = 0.03853+-0.00014.


pdgid: S008FA
text:
When F(V) is released, the BYCHKOV 2009 F(A) is 0.0117+-0.0017, and F(A) and F(V) results are highly (anti-)correlated: F(A) + 1.0286 F(V) = 0.03853+-0.00014.


pdgid: S008FA
text:
These values come from fixing the vector form factor at the CVC prediction, F_{{V}} = 0.0259+-0.0005.


pdgid: S008FA
text:
The result of STETZ 1978 has a two-fold ambiguity. We take the solution compatible with later determinations.


pdgid: S008CR
text:
This value combines the measurements of ANANTHANARAYAN 2017 and COLANGELO 2019 which are based on the same data set. The uncertainty range is chosen to cover both results.


pdgid: S008CR
text:
CUI 2021A perform a fit including spacelike data only. Employ a new mathematical procedure based on interpolation via continued fractions augmented by statistical sampling. Also do not impose the charge conserving normalization condition F(0) = 1.


pdgid: S008CR
text:
COLANGELO 2019 fit existing F(V) data, using an extended Omnes dispersive representation. This analysis is based on the same data set of ANANTHANARAYAN 2017. Accordingly, they cannot be averaged. We combine the results into a common value, with the uncertainty range chosen to cover the uncertainty ranges of both analyses.


pdgid: S008CR
text:
ANANTHANARAYAN 2017 fit existing F(V) data, using a mixed phase-modulus dispersive representation. This analysis is based on the same data set of COLANGELO 2019. Accordingly, they cannot be averaged. We combine the results into a common value, with the uncertainty range chosen to cover the uncertainty ranges of both analyses.


pdgid: S008CR
text:
According to the authors the uncertainty could be underestimated. The value quoted omits the BaBar data AUBERT 2009.


pdgid: S008CR
text:
The extractions could contain an additional theoretical uncertainty which cannot be sufficiently quantified.


pdgid: S009T
text:
LARIN 2020 reported this lifetime value from a measurement of Gamma(pi0 --> gamma gamma) = 7.802+-0.052+-0.105 eV, combining data from PrimEX-II on 12C and 28Si targets with previous PrimEx-I LARIN 2011 measurements. This result supersedes LARIN 2011.


pdgid: S009T
text:
BYCHKOV 2009 obtains this using the conserved-vector-current relation between the vector form factor F(V) and the pi0 lifetime.


pdgid: S009T
text:
LARIN 2011 reported Gamma(pi0 --> gamma gamma) = 7.82+-0.14+-0.17 eV which we converted to mean life tau = hbar/Gamma(total).


pdgid: S009R1
text:
ABOUZAID 2019 measured a value of (0.3920+-0.0016+-0.0036)% from 1999 KTEV data in decays, normalised to, for m(e e) > 15 MeV and then extrapolated it to the full m(e e) range using the Mikaelian and Smith predictions for the mass spectrum.


pdgid: S009R3
text:
This ABOUZAID 2008D value includes all radiative final states. The error includes both statistical and systematic errors. The correlation between the Dalitz-pair planes gives a direct measurement of the pi0 parity. The pi0 2gamma^* form factor is measured and limits are placed on a scalar contribution to the decay.


pdgid: S009R13
text:
ABOUZAID 2007 result is for m(e+ e-)/mass(pi0)> 0.95. With radiative corrections the result becomes 7.48+-0.29+-0.25E-8.


pdgid: S009R13
text:
The MCFARLAND 1993 result is for B[pi0 --> e+ e-, (m(e+ e-)/mass(pi0))**2>0.95]. With radiative corrections it becomes 8.8+4.5-3.2+-0.6E-8.


pdgid: S009R13
text:
ALAVI-HARATI 1999C quote result for B[pi0 --> e+ e-, (m(e+ e-)/mass(pi0))**2>0.95] to minimize radiative contributions from pi0 --> e+ e- gamma. After radiative corrections they obtain 7.04+-0.46+-0.28E-8.


pdgid: S009A
text:
ADLARSON 2017A use the A2 tagged photon facility at the Mainz Microtron, MAMI to measure pi0 Dalitz decay. The error is the total estimated experimental uncertainty.


pdgid: S009A
text:
BEHREND 1991 estimates that their systematic error is of the same order of magnitude as their statistical error, and so we have included a systematic error of this magnitude. The value of a is obtained by extrapolation from the region of large space-like momentum transfer assuming vector dominance.


pdgid: S009A
text:
TUPPER 1983 is a theoretical analysis of FISCHER 1978 including 2-photon exchange in the corrections.


pdgid: S009A
text:
The FISCHER 1978 error is statistical only. The result without radiation corrections is +0.05+-0.03.


pdgid: S014M
text:
ABDEL-BARY 2005 disagrees significantly with recent measurements of similar or better precision. See comment in the header.


pdgid: S014W1
text:
RODRIGUES 2008 uses a more sophisticated calculation for the inelastic background due to incoherent photoproduction to reanalyze the eta photoproduction data on Be and Cu at 9 GeV from BROWMAN 1974B. This brings the value of Gamma(eta --> 2gamma) in line with direct measurements of the width. The error here is only statistical.


pdgid: S014W1
text:
BEMPORAD 1967 gives Gamma(2gamma) = 1.21+-0.26 keV assuming Gamma(2gamma)/Gamma(total) = 0.314. Bemporad private communication gives Gamma(2gamma)**2/Gamma(total) = 0.380+-0.083. We evaluate this using Gamma(2gamma)/Gamma(total) = 0.38+-0.01. Not included in average because the uncertainty resulting from the separation of the coulomb and nuclear amplitudes has apparently been underestimated.


pdgid: S014R34
text:
ABLIKIM 2021AM normalize the branching ratio (eta --> gamma gamma) to B(J/psi --> gamma eta), which they measured absolutely.


pdgid: S014R34
text:
Not independent of other results listed for LOPEZ 2007. Assuming decays of eta --> gamma gamma, 3pi0, pi+ pi- pi0, pi+ pi- gamma, and e+ e- gamma account for all eta decays within a contribution of 0.3% to the systematic error.


pdgid: S014R52
text:
ABLIKIM 2021AM normalize the branching ratio () to B(J/psi --> gamma eta), which they measured absolutely.


pdgid: S014R22
text:
PRAKHOV 2008 is a reanalysis of the data of PRAKHOV 2005, using for the first time the invariant-mass spectrum of the two photons.


pdgid: S014R22
text:
This measurement and the independent analysis of the same data by KNECHT 2004 both imply a lower value of Gamma(pi0 2gamma) than the one obtained by ALDE 1984 from Gamma(pi0 2gamma)/Gamma(2gamma).


pdgid: S014R53
text:
ABLIKIM 2021AM normalize the branching ratio (eta --> pi+ pi- pi0) to B(J/psi --> gamma eta), which they measured absolutely.


pdgid: S014R7
text:
LOPEZ 2007 reports Gamma(eta --> pi+ pi- pi0) / Gamma(eta --> 2gamma) = Gamma(9)/Gamma(2) = 0.587+-0.011+-0.009.


pdgid: S014R54
text:
ABLIKIM 2021AM normalize the branching ratio (eta --> pi+ pi- gamma) to B(J/psi --> gamma eta), which they measured absolutely.


pdgid: S014R1
text:
These experiments are not used in the averages as they do not separate clearly eta --> pi+ pi- pi0 and eta --> pi+ pi- gamma from each other. The reported values thus probably contain some unknown fraction of eta --> pi+ pi- gamma.


pdgid: S014R29
text:
AGAKISHIEV 2012A uses a data sample of 3.5 GeV proton beam collisions on liquid hydrogen target collected by the HADES detector.


pdgid: S014R27
text:
BABUSCI 2020A combines new data with the previous AMBROSINO 2005A data, and thus supersedes AMBROSINO 2005A.


pdgid: S014R27
text:
ZHEVLAKOV 2019 derives the value from the experimental limits of nEDM by a calculation using an effective Lagrangian.


pdgid: S014R37
text:
ACHASOV 1998 observes one event in a +-3sigma region around the eta mass, while a Monte Carlo calculation gives 10+-5 events. The limit here is the Poisson upper limit for one observed event and no background.


pdgid: S014A1
text:
The GORMLEY 1968C asymmetry is probably due to unmeasured (E x B) spark chamber effects. New experiments with (E x B) controls don't observe an asymmetry.


pdgid: S014BET
text:
The authors don't believe this indicates D-wave because the dependence of beta on the gamma energy is inconsistent with the theoretical prediction. A cos**2(theta) dependence can also come from P- and F-wave interference.


pdgid: S014DP
text:
ABLIKIM 2023AN fit the Dalitz plot density distribution with two parameter sets (a, b, d, f), and (a, b, d, f, g).


pdgid: S014A0
text:
This AMBROSINO 2008D value is an indirect result using eta --> pi+ pi0 pi- events and a rescattering matrix that mixes isospin decay amplitudes.


pdgid: S014LAM
text:
ADLARSON 2017B reports Lambda**-2(eta --> gamma e+ e-) = 1.97+-0.11 (GeV/c**2)**-2 which we converted to the quoted Lambda value and uncertainty (total=statistical plus systematic).


pdgid: S014LAM
text:
ARNALDI 2016 reports Lambda**-2(eta --> gamma mu+ mu-) = 1.934+-0.067+-0.050 (GeV/c**2)**-2 which we converted to the quoted Lambda value.


pdgid: S014LAM
text:
ARNALDI 2009 reports Lambda**-2(eta --> gamma mu+ mu-) = 1.95+-0.17+-0.05 (GeV/c**2)**-2 which we converted to the quoted Lambda value.


pdgid: M014PP
text:
Applying the chiral unitary approach at NLO to the K_{{e4}} data of BATLEY 2010 and pi N --> pi pi N data of HYAMS 1973, GRAYER 1974, and PROTOPOPESCU 1973.


pdgid: M014PP
text:
Uses the K_{{e4}} data of BATLEY 2010C and the pi N --> pi pi N data of HYAMS 1973, GRAYER 1974, and PROTOPOPESCU 1973.


pdgid: M014PP
text:
Average of three variants of the analytic K-matrix model. Uses the K_{{e4}}() data of BATLEY 2008A and the pi N --> pi pi N data of HYAMS 1973 and GRAYER 1974.


pdgid: M014PP
text:
Average of the analyses of three data sets in the K-matrix model. Uses the data of BATLEY 2008A, HYAMS 1973, and GRAYER 1974, partially of COHEN 1980 or ETKIN 1982B.


pdgid: M014PP
text:
From the K_{{e4}} data of BATLEY 2008A and pi N --> pi pi N data of PROTOPOPESCU 1973, GRAYER 1974, and ESTABROOKS 1974.


pdgid: M014PP
text:
From the solution of the Roy equation (ROY 1971) for the isoscalar S-wave and using a phase-shift analysis of HYAMS 1973 and PROTOPOPESCU 1973 data.


pdgid: M014PP
text:
Reanalysis of the data from PROTOPOPESCU 1973, ESTABROOKS 1974, GRAYER 1974, ROSSELET 1977, PISLAK 2003, and AKHMETSHIN 2004.


pdgid: M014PP
text:
Using data on psi(2S) --> J/psi pi pi from BAI 2000E and on Upsilon(nS) --> Upsilon(mS) pi pi from BUTLER 1994B and ALEXANDER 1998.


pdgid: M014PP
text:
Coupled channel reanalysis of BATON 1970, BENSINGER 1971, BAILLON 1972, HYAMS 1973, HYAMS 1975, ROSSELET 1977, COHEN 1980, and ETKIN 1982B using the uniformizing variable.


pdgid: M014PP
text:
Reanalysis of data from HYAMS 1973, GRAYER 1974, SRINIVASAN 1975, and ROSSELET 1977 using the interfering amplitude method.


pdgid: M014PP
text:
Uses data from BEIER 1972B, OCHS 1973, HYAMS 1973, GRAYER 1974, ROSSELET 1977, CASON 1983, ASTON 1988, and ARMSTRONG 1991B. Coupled channel analysis with flavor symmetry and all light two-pseudoscalars systems.


pdgid: M014PP
text:
Coupled-channel analysis using data from PROTOPOPESCU 1973, HYAMS 1973, HYAMS 1975, GRAYER 1974, ESTABROOKS 1974, ESTABROOKS 1975, FROGGATT 1977, CORDEN 1979, BISWAS 1981.


pdgid: M014PP
text:
Analysis of data from APEL 1972C, GRAYER 1974, CASON 1976, PAWLICKI 1977. Includes spread and errors of 4 solutions.


pdgid: M014PP
text:
Analysis of data from BATON 1970, BENSINGER 1971, COLTON 1971, BAILLON 1972,PROTOPOPESCU 1973, and WALKER 1967.


pdgid: M014M
text:
Breit-Wigner fit to S-wave intensity measured in pi N --> pi- pi+ N on polarized targets. The fit does not include f_{{0}}(980).


pdgid: M014M
text:
Uses data from ASTON 1988, OCHS 1973, HYAMS 1973, ARMSTRONG 1991B, GRAYER 1974, CASON 1983, ROSSELET 1977, and BEIER 1972B. Coupled channel analysis with flavor symmetry and all light two-pseudoscalars systems.


pdgid: M014M
text:
The pole is on Sheet III. Demonstrates explicitly that f_{{0}}(500) and f_{{0}}(1370) are two different poles.


pdgid: M014M
text:
Uses pi0 pi0 data from ANISOVICH 1994, AMSLER 1994D, and ALDE 1995B, pi+ pi- data from OCHS 1973, GRAYER 1974 and ROSSELET 1977, and eta eta data from ANISOVICH 1994.


pdgid: M014W2
text:
Using Roy-Steiner equations with pi pi phase shifts from an update of COLANGELO 2001 and from GARCIA-MARTIN 2011A.


pdgid: M014W2
text:
Using dispersion integral with phase input from Roy equations and data from MARSISKE 1990, BOYER 1990, BEHREND 1992, UEHARA 2008A, and MORI 2007.


pdgid: M014W2
text:
Using p, n polarizabilities from PDG 2006 and fitting to pi pi phase motion from GARCIA-MARTIN 2007 and sigma-poles from GARCIA-MARTIN 2007 and CAPRINI 2006.


pdgid: M014W2
text:
Dispersion theory based amplitude analysis of BOYER 1990, MARSISKE 1990, BEHREND 1992, and MORI 2007.


pdgid: M014W2
text:
This width could equally well be assigned to the f_{{0}}(1370). The authors analyse data from BOYER 1990 and MARSISKE 1990 and report strong correlation with gamma gamma width of f_{{2}}(1270).


pdgid: M009PP
text:
Reanalysis of the K_{{e4}} data of BATLEY 2010C and the pi N --> pi pi N data of HYAMS 1973, GRAYER 1974, and PROTOPOPESCU 1973 using GKPY equations.


pdgid: M009PP
text:
Reanalysis of data from PROTOPOPESCU 1973, ESTABROOKS 1974, GRAYER 1974, and COHEN 1980 in the unitarized ChPT model.


pdgid: M009M0
text:
From a fit of the cross section in the energy range 0.525 < sqrt(s) < 0.883 GeV parameterized by the sum of the Breit-Wigner amplitudes for the rho(770), omega and rho(1450) resonances.


pdgid: M009M0
text:
Using the GOUNARIS 1968 parametrization with the complex phase of the rho-omega interference and leaving the masses and widths of the rho(1450), rho(1700), and rho(2150) resonances as free parameters of the fit.


pdgid: M009M0
text:
A fit of the SND data from 400 to 1000 MeV using parameters of the rho(1450) and rho(1700) from a fit of the data of BARKOV 1985, BISELLO 1989 and ANDERSON 2000A.


pdgid: M009M0
text:
From a fit of the pion form factor in the energy range 0.32 < sqrt(s) < 1.2 GeV using the GOUNARIS 1968 parametrization with the complex phase of the rho-omega interference with omega and phi masses and widths constrained by the values and their errors from PDG 2022, and leaving rho(1450), rho(1700) resonances as free parameters of the fit. Systematic errors not estimated.


pdgid: M009M0
text:
Applies the Unitary & Analytic Model of the pion electromagnetic form factor of DUBNICKA 2010 to analyze the data of LEES 2012G and ABLIKIM 2016C.


pdgid: M009M0
text:
Applies the Unitary & Analytic Model of the pion electromagnetic form factor of DUBNICKA 2010 to analyze the data of ACHASOV 2006, AKHMETSHIN 2007, AUBERT 2009AS, and AMBROSINO 2011A.


pdgid: M009M0
text:
From the fit to e+ e- --> pi+ pi- data from the compilations of HEYN 1981 and BARKOV 1985, including the GOUNARIS 1968 parametrization of the pion form factor.


pdgid: M009M5
text:
From the GOUNARIS 1968 parametrization of the pion form factor. The second error is a model error taking into account different parametrizations of the pion form factor.


pdgid: M009M5
text:
Applies the Unitary & Analytic Model of the pion electromagnetic form factor of DUBNICKA 2010 to analyze the data of FUJIKAWA 2008.


pdgid: M009M5
text:
From a fit of the model-independent parameterization of the pion form factor to the data of BARATE 1997M.


pdgid: M009M2
text:
From fit of 3-parameter relativistic P-wave Breit-Wigner to total mass distribution. Includes BATON 1968, MILLER 1967B, ALFF-STEINBERGER 1966, HAGOPIAN 1966, HAGOPIAN 1966B, JACOBS 1966B, JAMES 1966, WEST 1966, BLIEDEN 1965 and CARMONY 1964.


pdgid: M009M0R
text:
Includes MALAMUD 1969, ARMENISE 1968, BACON 1967, HUWE 1967, MILLER 1967B, ALFF-STEINBERGER 1966, HAGOPIAN 1966, HAGOPIAN 1966B, JACOBS 1966B, JAMES 1966, WEST 1966, GOLDHABER 1964, ABOLINS 1963.


pdgid: M009M0R
text:
From a fit to pi+ pi- mass using rho(770) (parametrized with the Gounaris-Sakurai approach), omega(782), and box anomaly components.


pdgid: M009M0R
text:
From a fit to pi+ pi- mass using rho(770) (parametrized with the Gounaris-Sakurai approach), omega(782), and rho(1450) components.


pdgid: M009M0R
text:
From fit of 3-parameter relativistic Breit-Wigner to helicity-zero part of P-wave intensity. CHABAUD 1983 includes data of GRAYER 1974.


pdgid: M009D
text:
From the combined fit of the tau- data from ANDERSON 2000A and SCHAEL 2005C and e+ e- data from the compilation of BARKOV 1985, AKHMETSHIN 2004, and ALOISIO 2005. Supersedes BARATE 1997M.


pdgid: M009D
text:
Includes MALAMUD 1969, ARMENISE 1968, BATON 1968, BACON 1967, HUWE 1967, MILLER 1967B, ALFF-STEINBERGER 1966, HAGOPIAN 1966, HAGOPIAN 1966B, JACOBS 1966B, JAMES 1966, WEST 1966, BLIEDEN 1965, CARMONY 1964, GOLDHABER 1964, ABOLINS 1963.


pdgid: M009D
text:
Applies the Unitary & Analytic Model of the pion electromagnetic form factor of DUBNICKA 2010 to analyze the data of ACHASOV 2006, AKHMETSHIN 2007, AUBERT 2009AS, AMBROSINO 2011A, and FUJIKAWA 2008.


pdgid: M009W0R
text:
From a fit to pi+ pi- mass using rho(770) (parametrized with the Gounaris-Sakurai From pole extrapolation. approach), omega(782), and rho(1450) components.


pdgid: M009G1
text:
From a combined fit of CS(e+ e- --> eta gamma) with eta --> 3pi0 and eta --> pi+ pi- pi0, and fixing B(eta --> 3pi0) / B(eta --> pi+ pi- pi0) = 1.44+-0.04. Recalculated by us from the cross section at the peak. Supersedes ACHASOV 2000D and ACHASOV 2006A.


pdgid: M009G1
text:
The combined fit from 600 to 1380 MeV taking into account rho(770), omega(782), phi(1020), and rho(1450) (mass and width fixed at 1450 MeV and 310 MeV respectively).


pdgid: M009G2
text:
From the VMD model with the p{rho(770)}, omega(782), phi(1020) resonances, and an additional resonance describing the total contribution of the rho(1450) and omega(1420) states. Supersedes ACHASOV 2003.


pdgid: M009G2
text:
Using sigma(phi --> pi0 gamma) from ACHASOV 2000 and mass(rho) = 775.97 MeV in the model with the energy-independent phase of rho-omega interferenceequal to (-10.2+-7.0)degree.


pdgid: M009R9
text:
Reanalysis of DRUZHININ 1984, DOLINSKY 1989, and DOLINSKY 1991 taking into account a triangle anomaly contribution.


pdgid: M009R7
text:
ACHASOV 2007B reports [G(rho(770) --> eta gamma)/G(total)] * [B(rho(770) --> e+ e-)] = 1.32+-0.14+-0.08E-8 which we divide by our best value B(rho(770) --> e+ e-) = 4.72+-0.05E-5. Our first error is their experiment's error and our second error is the systematic error from using our best value. Supersedes ACHASOV 2000D and ACHASOV 2006A.


pdgid: M009R7
text:
Reanalysis of DRUZHININ 1984, DOLINSKY 1989, and DOLINSKY 1991 taking into account a triangle anomaly contribution. Constructive rho-omega interference solution.


pdgid: M009R14
text:
This branching ratio includes the conventional VMD mechanism rho --> omega pi0, omega --> pi0 gamma, and the new decay mode rho --> f_0(500) gamma, f_0(500) --> pi0 pi0 with a branching ratio 2.0+1.1-0.9+-0.3E-5 differing from zero by 2.0 standard deviations.


pdgid: M009R14
text:
This branching ratio includes the conventional VMD mechanism rho --> omega pi0, omega --> pi0 gamma and the new decay mode rho --> f_0(500) gamma, f_0(500) --> pi0 pi0 with a branching ratio 1.9+0.9-0.8+-0.4E-5 differing from zero by 2.4 standard deviations. Supersedes ACHASOV 2000G.


pdgid: M009R5
text:
Result contains 11+-11% correction using SU(3) for central value. The error on the correction takes account of possible rho-omega interference and the upper limit agrees with the upper limit of omega --> mu+ mu- from this experiment.


pdgid: M009R5
text:
But he even enlarges his error to take residual omega contamination into account. Since his value is high, seems the other experiments also can't have too many omega's. But maybe Hyams has additional mu's from rho --> pi pi, decaying pi's.


pdgid: M009R10
text:
From the cross section for e+ e- --> pi+ pi- pi0 with contributions from rho(770), omega(782), phi(1020), omega(1420), and omega(1650). Statistical evidence is more than 6 sigma.


pdgid: M001M
text:
From the combined fit of ANTONELLI 1992, ACHASOV 2001E, ACHASOV 2002E, and ACHASOV 2003D data on the pi+ pi- pi0 and ANTONELLI 1992 on the omega pi+ pi- final states. Supersedes ACHASOV 1999E and ACHASOV 2002E.


pdgid: M001M
text:
From a fit of the pion form factor in the energy range 0.32 < sqrt(s) < 1.2 GeV using the GOUNARIS 1968 parametrization with the complex phase of the rho-omega interference leaving rho(1450), rho(1700) resonances as free parameters of the fit. Systematic errors not estimated.


pdgid: M001M
text:
The values were extracted from a dispersively improved Breit-Wigner parameterization and do not include vacuum polarization. Inclusion of vacuum polarization gives 782.736+-0.024 MeV.


pdgid: M001M
text:
The omega mass was extracted from a dispersively improved Breit-Wigner parameterization, the omega width fixed at 8.49+-0.08 MeV. The value does not include vacuum polarization which would shift the mass to 781.81+-0.09+-0.03 MeV. The mixing parameter is assumed real valued.


pdgid: M001M
text:
The values were extracted from a dispersively improved Breit-Wigner parameterization and do not include vacuum polarization.


pdgid: M001M
text:
From the rho-omega interference in the pi+ pi- mass spectrum using the Breit-Wigner for the omega and leaving its mass and width as free parameters of the fit.


pdgid: M001W
text:
The values were extracted from a dispersively improved Breit-Wigner parameterization and do not include vacuum polarization. Inclusion of vacuum polarization gives 8.63+-0.05 MeV.


pdgid: M001R02
text:
From the cross section for e+ e- --> pi+ pi- pi0 with contributions from rho(770), omega(782), phi(1020), omega(1420), and omega(1650).


pdgid: M001G2
text:
From a fit of the cross section using a VMD model which includes the interference of the omega and phi and non-resonant background, with some parameters, including phi mass and width, fixed at their PDG 2022 values.


pdgid: M001G4
text:
From the VMD model with the interfering rho(770), omega(782), phi(1020), and an additional resonance describing the total contribution of the rho(1450) and omega(1420) states. Supersedes ACHASOV 2003.


pdgid: M001G4
text:
Using CS(phi --> pi0 gamma) from ACHASOV 2000 and mass(omega) = 782.57 MeV in the model with the energy-independent phase of rho-omega interferenceequal to (-10.2+-7.0)degree.


pdgid: M001G5
text:
From a fit of the pion form factor in the energy range 0.32 < sqrt(s) < 1.2 GeV using the GOUNARIS 1968 parametrization with the complex phase of the rho-omega interference with omega and phi masses and widths constrained by the values and their errors from PDG 2022, and leaving rho(1450), rho(1700) resonances as free parameters of the fit.


pdgid: M001G5
text:
From a fit of the cross section in the energy range 0.525 < sqrt(s) < 0.883 GeV parameterized by the sum of the Breit-Wigner amplitudes for the rho(770), omega and rho(1450) resonances. The measured phase of the rho(770)--omega interference is (110.7+-1.5+-1.0)degree.


pdgid: M001G5
text:
A simultaneous fit to e+ e- --> pi+ pi-, pi+ pi- pi0, pi0 gamma, eta gamma, K Kbar, and tau- --> pi- pi0 nu_tau data. Supersedes BENAYOUN 2010.


pdgid: M001G01
text:
From a fit of the real part of the vacuum polarization by a sum of the leptonic and hadronic contributions, where the hadronic contribution is parametrized as a sum of Breit-Wigner resonances omega(782), phi(1020) and using a GOUNARIS 1968 parametrization for the rho(770), and a non-resonant term.


pdgid: M001R28
text:
Reanalysis of DRUZHININ 1984, DOLINSKY 1989, DOLINSKY 1991 taking into account the triangle anomaly contributions.


pdgid: M001R3
text:
From sigma(0)**omega pi0 --> pi0 pi0 gamma(mass(phi))/sigma(0)**omega pi0 --> pi+ pi- pi0 pi0(mass(phi)) with a phase-space correction factor of 1/1.023.


pdgid: M001R15
text:
From the m(pi+ pi-) spectrum taking into account the interference of the rho pi and omega pi amplitudes.


pdgid: M001R15
text:
ABLIKIM 2018C reports [G(omega(782) --> pi+ pi-)/G(total)] * [B(eta^'(958) --> omega gamma)] = 3.25+-0.21+-0.52E-4 which we divide by our best value B(eta^'(958) --> omega gamma) = 2.52+-0.07E-2. Our first error is their experiment's error and our second error is the systematic error from using our best value.


pdgid: M001R15
text:
ABLIKIM 2018C reports [G(omega(782) --> pi+ pi-)/G(total)] * [B(eta^'(958) --> omega gamma)] = 3.22+-0.21+-0.52E-4 which we divide by our best value B(eta^'(958) --> omega gamma) = 2.52+-0.07E-2. Our first error is their experiment's error and our second error is the systematic error from using our best value.


pdgid: M001R15
text:
Dispersive analysis. Value extracted from average of data from AUBERT 2009AS, AKHMETSHIN 2007, ACHASOV 2006, AMBROSINO 2011A, BABUSCI 2013D, ABLIKIM 2016B normalised by PDG 2016 evaluation for Gamma(omega --> e+ e-).


pdgid: M001R15
text:
Re-evaluated under G(omega(782) --> pi+ pi-)/G(omega(782) --> pi+ pi- pi0) by BEHREND 1971 using more accurate omega --> rho photoproduction cross-section ratio.


pdgid: M001R2
text:
The fitted width of these data is 160 MeV in agreement with present average, thus the omega contribution is overestimated. Assuming rho width 145 MeV.


pdgid: M001R19
text:
ACHASOV 2007B reports [G(omega(782) --> eta gamma)/G(total)] * [B(omega(782) --> e+ e-)] = 3.10+-0.31+-0.11E-8 which we divide by our best value B(omega(782) --> e+ e-) = 7.41+-0.19E-5. Our first error is their experiment's error and our second error is the systematic error from using our best value. Supersedes ACHASOV 2000D and ACHASOV 2006A.


pdgid: M001R19
text:
Using B(omega --> e+ e-)= 7.07+-0.19E-5 and using B(eta --> 3pi0)= 32.24+-0.29E-2. Solution corresponding to constructive omega-rho interference. The combined fit from 600 to 1380 MeV taking into account rho(770), omega(782), phi(1020), and rho(1450) (mass and width fixed at 1450 MeV and 310 MeV respectively). Not independent of the corresponding Gamma(e+ e-)xGamma(eta gamma)/Gamma(total)**2.


pdgid: M001R19
text:
Depending on the degree of coherence with the flat eta eta gamma background and using B(omega --> pi0 gamma)=8.5+-0.5E-2.


pdgid: M001R29
text:
In the model assuming the rho --> pi0 pi0 gamma decay via the omega pi and f_0(500) gamma mechanisms.


pdgid: M001R30
text:
Assuming lepton universality in the decay omega --> lepton+ lepton- and correcting for different phase space between electron and muon final states.


pdgid: M001R35
text:
STAROSTIN 2009 reports [G(omega(782) --> eta pi0)/G(omega(782) --> pi0 gamma)] * [B(eta --> 2gamma)] < 1.01E-3 which we divide by our best value B(eta --> 2gamma) = 39.36E-2.


pdgid: M001LAM
text:
ARNALDI 2016 reports Lambda**-2(omega) = 2.223+-0.026+-0.037 GeV**-2 which we converted to the quoted Lambda value.


pdgid: M001LAM
text:
ARNALDI 2009 reports Lambda**-2(omega) = 2.24+-0.06+-0.02 GeV**-2 which we converted to the quoted Lambda value.


pdgid: M001A02
text:
ADLARSON 2017B reports Lambda**-2(omega pi0) = 1.99+-0.21 GeV**-2 that we converted to the quoted Lambda value.


pdgid: M001A00
text:
Keeping a term linear in Z only. A fit with the terms proportional to Z and Z**3/2 gives alpha = 0.133+-0.041 and beta = 0.037+-0.054.


pdgid: M002M
text:
Using eta^' decays into neutrals. Not independent of the other listed BASILE 1971 eta^' mass measurement.


pdgid: M002G2
text:
Reevaluated by us using B(eta --> gamma gamma) = (39.21+-0.34)%. Supersedes ANTREASYAN 1987 and KARCH 1990.


pdgid: M002G01
text:
AKHMETSHIN 2015 reports [G(eta^'(958) --> pi+ pi- eta) * G(eta^'(958) --> e+ e-)/G(total)] * [B(eta --> 2gamma)] < 4.1E-4 eV which we divide by our best value B(eta --> 2gamma) = 39.36E-2.


pdgid: M002R19
text:
WICHT 2008 reports [G(eta^'(958) --> gamma gamma)/G(total)] * [B(B+ --> eta^' K+)] = 1.40+0.16-0.15+0.15-0.12E-6 which we divide by our best value B(B+ --> eta^' K+) = 7.04+-0.25E-5. Our first error is their experiment's error and our second error is the systematic error from using our best value.


pdgid: M002R50
text:
ABLIKIM 2024AK reports 2.16+-0.12+-0.06E-5 from a measurement of [G(eta^'(958) --> pi+ pi- mu+ mu-)/G(total)] * [B(J/psi(1S) --> gamma eta^'(958))] assuming B(J/psi(1S) --> gamma eta^'(958)) = 5.25+-0.07E-3, which we rescale to our best value B(J/psi(1S) --> gamma eta^'(958)) = 5.28+-0.06E-3. Our first error is their experiment's error and our second error is the systematic error from using our best value.


pdgid: M002R50
text:
ABLIKIM 2021I reports 1.97+-0.33+-0.19E-5 from a measurement of [G(eta^'(958) --> pi+ pi- mu+ mu-)/G(total)] * [B(J/psi(1S) --> gamma eta^'(958))] assuming B(J/psi(1S) --> gamma eta^'(958)) = 5.21+-0.17E-3, which we rescale to our best value B(J/psi(1S) --> gamma eta^'(958)) = 5.28+-0.06E-3. Our first error is their experiment's error and our second error is the systematic error from using our best value.


pdgid: M002R03
text:
NAIK 2009 reports [G(eta^'(958) --> pi+ pi- mu+ mu-)/G(eta^'(958) --> pi+ pi- eta)] / [B(eta --> 2gamma)] < 1.3E-3 which we multiply by our best value B(eta --> 2gamma) = 39.36E-2.


pdgid: M002R01
text:
NAIK 2009 reports [G(eta^'(958) --> pi+ pi- pi0)/G(eta^'(958) --> pi+ pi- eta)] / [B(eta --> 2gamma)] = 21+6-5+-2E-3 which we multiply by our best value B(eta --> 2gamma) = 39.36+-0.18E-2. Our first error is their experiment's error and our second error is the systematic error from using our best value.


pdgid: M002R24
text:
ABLIKIM 2024F reports 8.56+-0.25+-0.23E-5 from a measurement of [G(eta^'(958) --> 2(pi+ pi-))/G(total)] * [B(J/psi(1S) --> gamma eta^'(958))] assuming B(J/psi(1S) --> gamma eta^'(958)) = 5.25+-0.07E-3, which we rescale to our best value B(J/psi(1S) --> gamma eta^'(958)) = 5.28+-0.06E-3. Our first error is their experiment's error and our second error is the systematic error from using our best value.


pdgid: M002R24
text:
ABLIKIM 2014M reports [G(eta^'(958) --> 2(pi+ pi-))/G(total)] * [B(J/psi(1S) --> gamma eta^'(958))] = 4.40+-0.35+-0.30E-7 which we divide by our best value B(J/psi(1S) --> gamma eta^'(958)) = 5.28+-0.06E-3. Our first error is their experiment's error and our second error is the systematic error from using our best value.


pdgid: M002R04
text:
NAIK 2009 reports [G(eta^'(958) --> 2(pi+ pi-))/G(eta^'(958) --> pi+ pi- eta)] / [B(eta --> 2gamma)] < 1.4E-3 which we multiply by our best value B(eta --> 2gamma) = 39.36E-2.


pdgid: M002R51
text:
ABLIKIM 2024F reports 2.12+-0.12+-0.10E-4 from a measurement of [G(eta^'(958) --> pi+ pi- 2pi0)/G(total)] * [B(J/psi(1S) --> gamma eta^'(958))] assuming B(J/psi(1S) --> gamma eta^'(958)) = 5.25+-0.07E-3, which we rescale to our best value B(J/psi(1S) --> gamma eta^'(958)) = 5.28+-0.06E-3. Our first error is their experiment's error and our second error is the systematic error from using our best value.


pdgid: M002R51
text:
ABLIKIM 2014M reports [G(eta^'(958) --> pi+ pi- 2pi0)/G(total)] * [B(J/psi(1S) --> gamma eta^'(958))] = 9.38+-1.79+-0.89E-7 which we divide by our best value B(J/psi(1S) --> gamma eta^'(958)) = 5.28+-0.06E-3. Our first error is their experiment's error and our second error is the systematic error from using our best value.


pdgid: M002R05
text:
NAIK 2009 reports [G(eta^'(958) --> pi+ pi- 2pi0)/G(eta^'(958) --> pi+ pi- eta)] / [B(eta --> 2gamma)] < 15E-3 which we multiply by our best value B(eta --> 2gamma) = 39.36E-2.


pdgid: M002R06
text:
NAIK 2009 reports [G(eta^'(958) --> 2(pi+ pi-) pi0)/G(eta^'(958) --> pi+ pi- eta)] / [B(eta --> 2gamma)] < 11E-3 which we multiply by our best value B(eta --> 2gamma) = 39.36E-2.


pdgid: M002R08
text:
NAIK 2009 reports [G(eta^'(958) --> 3(pi+ pi-))/G(eta^'(958) --> pi+ pi- eta)] / [B(eta --> 2gamma)] < 3.0E-3 which we multiply by our best value B(eta --> 2gamma) = 39.36E-2.


pdgid: M002R12
text:
ABLIKIM 2024AK reports 2.45+-0.02+-0.08E-3 from a measurement of [G(eta^'(958) --> pi+ pi- e+ e-)/G(total)] * [B(J/psi(1S) --> gamma eta^'(958))] assuming B(J/psi(1S) --> gamma eta^'(958)) = 5.25+-0.07E-3, which we rescale to our best value B(J/psi(1S) --> gamma eta^'(958)) = 5.28+-0.06E-3. Our first error is their experiment's error and our second error is the systematic error from using our best value.


pdgid: M002R02
text:
NAIK 2009 reports [G(eta^'(958) --> pi+ pi- e+ e-)/G(eta^'(958) --> pi+ pi- eta)] / [B(eta --> 2gamma)] = 14+7-5+-3E-3 which we multiply by our best value B(eta --> 2gamma) = 39.36+-0.18E-2. Our first error is their experiment's error and our second error is the systematic error from using our best value.


pdgid: M002R40
text:
ABLIKIM 2024M reports 4.83+-0.07+-0.14E-4 from a measurement of [G(eta^'(958) --> gamma e+ e-)/G(total)] * [B(J/psi(1S) --> gamma eta^'(958))] assuming B(J/psi(1S) --> gamma eta^'(958)) = 5.25+-0.07E-3, which we rescale to our best value B(J/psi(1S) --> gamma eta^'(958)) = 5.28+-0.06E-3. Our first error is their experiment's error and our second error is the systematic error from using our best value.


pdgid: M002R58
text:
ABLIKIM 2024F reports <1.24E-5 from a measurement of [G(eta^'(958) --> 4pi0)/G(total)] * [B(J/psi(1S) --> gamma eta^'(958))] assuming B(J/psi(1S) --> gamma eta^'(958)) = 5.25+-0.07E-3, which we rescale to our best value B(J/psi(1S) --> gamma eta^'(958)) = 5.28E-3.


pdgid: M002R39
text:
Using width(eta^'(958)) = 198+-9 keV, B(eta^'(958) --> pi+ pi- eta) = (42.9+-0.7)%, and B(eta --> gamma gamma) = (39.41+-0.20)%.


pdgid: M002R68
text:
ABLIKIM 2022E reports 4.5+-1.0+-0.5E-6 from a measurement of [G(eta^'(958) --> e+ e- e+ e-)/G(total)] * [B(J/psi(1S) --> gamma eta^'(958))] assuming B(J/psi(1S) --> gamma eta^'(958)) = 5.25+-0.07E-3, which we rescale to our best value B(J/psi(1S) --> gamma eta^'(958)) = 5.28+-0.06E-3. Our first error is their experiment's error and our second error is the systematic error from using our best value.


pdgid: M002R09
text:
NAIK 2009 reports [G(eta^'(958) --> invisible)/G(eta^'(958) --> pi+ pi- eta)] / [B(eta --> 2gamma)] < 5.4E-3 which we multiply by our best value B(eta --> 2gamma) = 39.36E-2.


pdgid: M002R20
text:
ABLIKIM 2011G reports [G(eta^'(958) --> pi+ pi-)/G(total)] * [B(J/psi(1S) --> gamma eta^'(958))] < 2.84E-7 which we divide by our best value B(J/psi(1S) --> gamma eta^'(958)) = 5.28E-3.


pdgid: M002R73
text:
For a pseudoscalar ALP, with a mass in the range 0 -- 500 MeV. The measured limit at the 90% credibility level as a function of the mass of ALP ranges from 0.1E-3 to 7.8E-3.


pdgid: M002A0
text:
From the data of DAUBER 1964, RITTENBERG 1969, AGUILAR-BENITEZ 1972B, JACOBS 1973, and DANBURG 1973.


pdgid: M002FFL
text:
In the single-pole Ansatz where slope = 1/(Lambda**2 + gamma**2) with Lambda, gamma being a Breit-Wigner mass, width for the effective contributing vector meson.


pdgid: M002FFL
text:
From a weighted average of the eta^' --> pi+ pi- e+ e- and eta^' --> pi+ pi- mu+ mu- values. The uncertainty is obtained by combining statistical and systematic uncertainties. TFF slope values go between 1.10+-0.21 GeV**-2 and 1.61+-0.71 GeV**-2 for eta^' --> pi+ pi- e+ e-, and between 2.37+-0.49 GeV**-2 and 2.88+-0.25 GeV**-2 for eta^' --> pi+ pi- mu+ mu-, according to the solution of the fitting function model.


pdgid: M003PP
text:
Using the GKPY equations as GARCIA-MARTIN 2011, but with different treatment of kaon thresholds and input for pi pi/K Kbar T-matrix from HOFERICHTER 2016.


pdgid: M003PP
text:
5 poles, 5 channels, including scattering data from HYAMS 1975 (pi pi), LONGACRE 1986 (K Kbar),  BINON 1983 (eta eta), and BINON 1984C (eta eta^'). Based on 18.5k events. Second solution 977.8+-1.7 MeV.


pdgid: M003PP
text:
Reanalysis of the K_{{e4}} data of BATLEY 2010C and the pi N --> pi pi N data of  HYAMS 1973, GRAYER 1974, and PROTOPOPESCU 1973 using Roy equations.


pdgid: M003PP
text:
Average of the analyses of three data sets in the K-matrix    model. Uses the data of BATLEY 2008A, HYAMS 1973, and GRAYER 1974,  partially of COHEN 1980  or ETKIN 1982B.


pdgid: M003M1
text:
From the D+- --> K+- K+ K- Dalitz plot fit with the Triple-M amplitude in the multimeson model of AOUDE 2018.


pdgid: M003M1
text:
Breit-Wigner mass. Using finite width corrections according to FLATTE 1976 and ACHASOV 2005, and the ratio g(f_0() K K)/g(f_0() pi pi) = 0.


pdgid: M003M1
text:
FLATTE 1976 parameterization. g(f_0() pi pi) = 329+-96 MeV/c**2 assuming g(f_0() K Kbar)/g(f_0() pi pi)=2.


pdgid: M003M1
text:
Breit-Wigner mass. Using finite width corrections according to FLATTE 1976 and ACHASOV 2005, and the ratio g(f_0() K K)/g(f_0() pi pi) = 4.21+-0.25+-0.21 from ABLIKIM 2005.


pdgid: M003M1
text:
From sheet II pole position. K-matrix pole from combined analysis of pi- p --> pi0 pi0 n, pi- p --> K Kbar n, pi+ pi- --> pi+ pi-, pbar p --> pi0 pi0 pi0, pi0 eta eta, pi0 pi0 eta, pi+ pi- pi0, K+ K- pi0, K0S K0S pi0, K+ K0S pi- at rest, pbar n --> pi- pi- pi+, K0S K- pi0, K0S K0S pi- at rest.


pdgid: M003M1
text:
From the negative interference with the f_{{0}}(500) meson of AITALA 2001B using the ACHASOV 1989 parameterization for the f_0(980), a Breit-Wigner for the f_{{0}}(500), and ACHASOV 2001F for the rho pi contribution.


pdgid: M003M1
text:
From the combined fit of the photon spectra in the reactions e+ e- --> pi+ pi- gamma, pi0 pi0 gamma.


pdgid: M003M1
text:
On sheet II in a 4-pole solution, the other poles are found on sheet III at (953-55i) MeV and on sheet IV at (938-35i) MeV.


pdgid: M003M1
text:
On sheet II in a 2 pole solution. The other pole is found on sheet III at (797-185i) MeV and can be interpreted as a shadow pole.


pdgid: M003W1
text:
Breit-Wigner pi pi width. Using finite width corrections according to FLATTE 1976 and ACHASOV 2005, and the ratio g(f_0() K K)/g(f_0() pi pi) = 0.


pdgid: M003W1
text:
Breit-Wigner pi pi width. Using finite width corrections according to FLATTE 1976 and ACHASOV 2005, and the ratio g(f_0() K K)/g(f_0() pi pi) = 4.21+-0.25+-0.21 from ABLIKIM 2005.


pdgid: M003W1
text:
From coupled channel fit to the HYAMS 1973 and PROTOPOPESCU 1973 data. From the S-wave T-matrix pole. With a simultaneous fit to the pi pi phase-shifts, inelasticity and to the K0S K0S invariant mass.


pdgid: M003W4
text:
Using finite width corrections according to FLATTE 1976 and ACHASOV 2005, and the ratio g(f_0() K K)/g(f_0() pi pi) = 0.


pdgid: M003W4
text:
Using finite width corrections according to FLATTE 1976 and ACHASOV 2005, and the ratio g(f_0() K K)/g(f_0() pi pi) = 4.21+-0.25+-0.21 from ABLIKIM 2005.


pdgid: M003W4
text:
From amplitude analysis of BOYER 1990 and MARSISKE 1990, data corresponds to resonance parameters m = 989 MeV, Gamma = 61 MeV.


pdgid: M003R1
text:
Recalculated by us using Gamma(K+ K-) / Gamma(pi+ pi-) = 0.69+-0.32 from AUBERT 2006O and isospin relations.


pdgid: M003R1
text:
From a combined K-matrix analysis of Crystal Barrel (p pbar --> pi0 pi0 pi0, pi0 eta eta, pi0 pi0 eta), GAMS (pi p --> pi0 pi0 n, eta eta n, eta eta^' n), and BNL (pi p --> K Kbar n) data.


pdgid: M036PP
text:
Pole mass on sheet closest to the physical axis - the more remote pole is extracted at (1004.1+-1.5+-6.5) - i(48.6+-1.2+-3.4) MeV.


pdgid: M036PP
text:
T-matrix pole on sheet II. Parameterizes couplings to Kbar K, pi eta, and pi eta^'. Uses AMSLER 1994D and ABELE 1998.


pdgid: M036M1
text:
From a fit with the S-wave amplitude including two interfering Breit-Wigners plus a background term.


pdgid: M036M1
text:
Breit-Wigner fit, average between a_{{0}}()+- and a_{{0}}()0. The fit favors a slightly heavier a_{{0}}()+-.


pdgid: M036M2
text:
From theD+- --> K+- K+ K- Dalitz plot fit with the Triple-M amplitude in the multimeson model of AOUDE 2018.


pdgid: M036M2
text:
Note on J**P. Main argument for 0**+** is small Q value. Isotropy of decay distribution in pbar p at rest proves nothing. See discussion by Rosenfeld (Oxford) and Butterworth (Heidelberg).


pdgid: M036R2
text:
Residues from T-matrix pole with 2 poles, 2 channels. Solution on adjacent sheet 0.149+-0.001+-0.039.


pdgid: M036R00
text:
From an amplitude analysis of the D0 --> K- pi+ eta decay in a three-channel Flatte model with a 10.1 sigma significance. Earlier observed by ABLIKIM 2017K in the chi_c1 --> eta pi+ pi- decay with a 8.9 sigma significance.


pdgid: M004M
text:
From a fit of the cross section in the energy region 1.000 < sqrt(s) < 1.100 GeV using a vector meson dominance model with contribution from phi(1020), rho(770), omega(782) and higher vector resonances. The the first three points near the threshold are removed in the fit.


pdgid: M004M
text:
Average of KOZYREV 2016 and KOZYREV 2018 values taking into account the correlated uncertainties. Supersedes individual KOZYREV 2016 and KOZYREV 2018 results.


pdgid: M004M
text:
Using a vector meson dominance model with contribution from phi(1020) and higher mass excitations of rho(770), omega(782), and phi(1020).


pdgid: M004M
text:
Using a phenomenological model based on KUHN 1990 with a sum of Breit-Wigner resonances for rho(770), omega(782), phi(1020) and their higher mass excitations.


pdgid: M004M
text:
From the combined fit assuming that the total phi(1020) production cross section is saturated by those of K+ K-, K_S K_L, pi+ pi- pi0, and eta gamma decays modes and using ACHASOV 2000B for the eta gamma decay mode.


pdgid: M004M
text:
The values were extracted from a dispersively improved Breit-Wigner parameterization and do not include vacuum polarization. Inclusion of vacuum polarization gives 1019.457+-0.020 MeV.


pdgid: M004W5
text:
Weighted average of and sqrt(width(e e) width(mu mu)) from AMBROSINO 2005 assuming lepton universality.


pdgid: M004W8
text:
Combined analysis of the CMD-2 data on phi --> K+ K-, K0S K0L, pi+ pi- pi0, eta gamma assuming that the sum of their branching fractions is 0.99741+-0.00007.


pdgid: M004W8
text:
From forward-backward asymmetry and using Gamma(total) = 4.26+-0.05 MeV from the 2004 edition of this Review.


pdgid: M004G01
text:
Using a phenomenological model based on KUHN 1990 with a sum of Breit-Wigner resonances for rho(770), omega(782), phi(1020) and their higher mass excitations. The first error combines statistical and systematic uncertainties. The second one is due to the parametrization of the charged kaon form factor and mass calibration.


pdgid: M004G3
text:
From the VMD model with the interfering rho(770), omega(782), phi(1020) resonances, and an additional resonance describing the total contribution of the rho(1450) and omega(1420) states. Supersedes ACHASOV 2000.


pdgid: M004G4
text:
From a fit of the pion form factor in the energy range 0.32 < sqrt(s) < 1.2 GeV using the GOUNARIS 1968 parametrization with the complex phase of the rho-omega interference with omega and phi masses and widths constrained by the values and their errors from PDG 2022, and leaving rho(1450), rho(1700) resonances as free parameters of the fit. A fit without the constraints from PDG 2022 gives a value Gamma(e+ e-)xGamma(pi+ pi-)/Gamma(total)**2 = 3.65+-0.24E-8.


pdgid: M004G4
text:
A simultaneous fit to e+ e- --> pi+ pi-, pi+ pi- pi0, pi0 gamma, eta gamma, K Kbar, and tau- --> pi- pi0 nu_tau data.


pdgid: M004G11
text:
AMBROSINO 2008G reports [G(phi(1020) --> omega pi0)/G(total) * G(phi(1020) --> e+ e-)/G(total)] * [B(omega(782) --> pi+ pi- pi0)] = 1.22+-0.13+-0.08E-8 which we divide by our best value B(omega(782) --> pi+ pi- pi0) = 89.2+-0.7E-2. Our first error is their experiment's error and our second error is the systematic error from using our best value.


pdgid: M004R19
text:
The prediction taking into account phase-space difference, radiative corrections, isospin breaking, and the Sommerfeld-Gamow-Sakharov factor gives 0.630.


pdgid: M004R19
text:
Theoretical analysis of BRAMON 2000 taking into account phase-space difference, electromagnetic radiative corrections, as well as isospin breaking, predicts 0.62. FLOREZ-BAEZ 2008 predicts 0.63 considering also structure-dependent radiative corrections. FISCHBACH 2002 calculates additional corrections caused by the close threshold and predicts 0.68. See also BENAYOUN 2001 and DUBYNSKIY 2007. BENAYOUN 2012 obtains 0.71+-0.01 in the HLS model.


pdgid: M004R5
text:
This is probably not affected by their controversial background subtraction; the value is from their numbers of K_1 K_2 vs K+ K- events.


pdgid: M004R3
text:
Using Gamma(phi)= 4.1 MeV. If interference between the rho pi and 3pi modes is neglected, the fraction of the rho pi is more than 80% at the 90% confidence level.


pdgid: M004R46
text:
Adding the direct and omega pi contributions and considering the interference between the rho pi and pi+ pi- pi0.


pdgid: M004R11
text:
ACHASOV 2007B reports [G(phi(1020) --> eta gamma)/G(total)] * [B(phi(1020) --> e+ e-)] = 4.050+-0.067+-0.118E-6 which we divide by our best value B(phi(1020) --> e+ e-) = 2.964+-0.033E-4. Our first error is their experiment's error and our second error is the systematic error from using our best value. Supersedes ACHASOV 2000D and ACHASOV 2006A.


pdgid: M004R16
text:
Using total width 4.2 MeV. They detect 3pi mode and observe significant interference with omega tail. This is accounted for in the result quoted above.


pdgid: M004R24
text:
Using B(eta --> gamma gamma) = (39.25+-0.32)%, B(phi --> eta gamma) = (1.26+-0.06)%, and B(phi --> e+ e-) = 3.00+-0.06E-4.


pdgid: M004R24
text:
The average of the branching ratios separately obtained from the eta --> gamma gamma, 3pi0, pi+ pi- pi0 decays.


pdgid: M004R24
text:
From eta --> gamma gamma decays and using B(eta --> gamma gamma) = 39.33+-0.25E-2, B(eta --> pi+ pi- gamma) = 4.75+-11E-2, and B(phi --> eta gamma) = 1.297+-0.033E-2.


pdgid: M004R24
text:
From eta --> 3pi0 decays and using B(pi0 --> gamma gamma) = 98.798+-0.033E-2, B(eta --> 3pi0) = 32.24+-0.29E-2, B(eta --> pi+ pi- gamma) = 4.75+-0.11E-2, and B(phi --> eta gamma) = 1.297+-0.033E-2.


pdgid: M004R24
text:
From eta --> pi+ pi- pi0 decays and using B(pi0 --> gamma gamma) = 98.798+-0.033E-2, B(pi0 --> e+ e- gamma) = 1.198+-0.032E-2, B(eta --> pi+ pi- pi0) = 23.0+-0.4E-2, B(phi --> pi+ pi- pi0) = 15.5+-0.6E-2, and B(phi --> eta gamma) = 1.297+-0.033E-2.


pdgid: M004R12
text:
For E(gamma)>20 MeV and assuming that B(phi(1020) --> f_0(980) gamma) is negligible. Supersedes AKHMETSHIN 1997C.


pdgid: M004R30
text:
Obtained by the authors taking into account the pi+ pi- decay mode. Includes a component due to pi pi production via the f_{{0}}(500) meson. Supersedes ALOISIO 2002D.


pdgid: M004R30
text:
From the negative interference with the f_{{0}}(500) meson of AITALA 2001B using the ACHASOV 1989 parameterization for the f_0(980), a Breit-Wigner for the f_{{0}}(500), and ACHASOV 2001F for the rho pi contribution. Superseded by AMBROSINO 2007.


pdgid: M004R30
text:
Assuming that the pi0 pi0 gamma final state is completely determined by the f_0() gamma mechanism, neglecting the decay B(phi --> K Kbar gamma) and using B(f_0() --> pi+ pi-)= 2B(f_0() --> pi0 pi0).


pdgid: M004R22
text:
Using the cross section at the phi meson peak CS(phi) = 4172+-42 nb, the nonresonant cross section CS(0) = 1.263+-0.027 nb and Re(Z) = 0.146+-0.030, Im(Z) = -0.002+-0.024 for the complex amplitude of the phi --> pi+ pi- pi+ pi- transition.


pdgid: M004R31
text:
Using B(pi0 --> gamma gamma) = 0.98798+-0.00032, B(phi --> eta gamma) = 1.297+-0.033E-2, and B(eta --> pi+ pi- gamma) = 4.75+-0.11E-2.


pdgid: M004R32
text:
Using B(phi --> eta gamma) = (1.304+-0.025)%, B(eta --> 3pi0) = (32.56+-0.23)%, and B(eta --> gamma gamma) = (39.31+-0.20)%.


pdgid: M004R32
text:
Using B(phi --> eta gamma) = (1.304+-0.025)%, B(eta --> 3pi0) = (32.56+-0.23)%, and B(eta --> pi+ pi- pi0) = (22.73+-0.28)%.


pdgid: M004R47
text:
Using results of ALOISIO 2002D and assuming that f_{{0}}(980) decays into pi pi only and a_{{0}}(980) into eta pi only.


pdgid: M004R25
text:
AMBROSINO 2007A reports [G(phi(1020) --> eta^'(958) gamma)/G(total)] / [B(phi(1020) --> eta gamma)] = 4.77+-0.09+-0.19E-3 which we multiply by our best value B(phi(1020) --> eta gamma) = 1.306+-0.024E-2. Our first error is their experiment's error and our second error is the systematic error from using our best value.


pdgid: M004R43
text:
Using various branching ratios of K(S)0, K(L)0, eta, eta^' from the 2000 edition (The European Physical Journal C15 1 (2000)) of this Review.


pdgid: M004R01
text:
For a narrow vector U with mass between 5 and 470 MeV, from the combined analysis of eta --> pi+ pi- pi0 and eta --> pi0 pi0 pi0 from ARCHILLI 2012. Measured 90% CL limits as a function of mass(U) range from 2.2E-8 to 10**-6.


pdgid: M010W
text:
From a fit of the K- K^*()0 distribution assuming mass(a_{{1}})= 1230 MeV and purely resonant production of the K- K^*()0 system.


pdgid: M010R4
text:
Uses multichannel Aitchison-Bowler model (BOWLER 1975). Uses data from GAVILLET 1977, DAUM 1980, and DANKOWYCH 1981.


pdgid: M010R10
text:
The a_1(1260)- --> f_0(980) pi- decay mode via the Triangle Singularity mechanism from MIKHASENKO 2015 and ACETI 2016 explains the a_{{1}}(1420)- signal observed by ADOLPH 2015C.


pdgid: M010R13
text:
Using structure functions from KUHN 1992 and DECKER 1993A and B(tau- --> K- pi- K+ nu_tau) = (0.155+-0.006+-0.009)% from BRIERE 2003.


pdgid: M005M
text:
Averaged over six nuclear targets, no statistically significant dependence on target nucleus observed.


pdgid: M005W8
text:
Based on a K-matrix analysis of BELLE data from MORI 2007, UEHARA 2008A, UEHARA 2009 and UEHARA 2013. The width is derived for the pole on the third sheet which is closest to the physical axis. Supersedes PENNINGTON 2008.


pdgid: M005W8
text:
Error includes spread of different solutions. Data of MARK2 and CRYSTAL BALL used in the analysis. Authors report strong correlations with gamma gamma width of f_{{0}}(1370) : Gamma(f_{{2}}) + 1/4 Gamma(f0) = 3.6+-0.3 KeV.


pdgid: M005G02
text:
Including interference with the f_{{2}}^'(1525) (parameters fixed to the values from the 2008 edition of this review, PDG 2008) and f_{{0}}(Y).


pdgid: M005HR0
text:
Based on a K-matrix analysis of BELLE data from MORI 2007, UEHARA 2008A, UEHARA 2009 and UEHARA 2013. The width is derived for the pole on the third sheet which is closest to the physical axis.


pdgid: M005R10
text:
Residue from T-matrix pole, 4 poles, 4 channels, including scattering data from HYAMS 1975 (pi pi), LONGACRE 1986 (K Kbar), BINON 1983 (eta eta).


pdgid: M005R1
text:
LOUIE 1974 was quoted as 0.065 in PDG 1974. Factor 2/3 to go from pi+ pi- --> pi pi forgotten. Mike L.


pdgid: M008R2
text:
CORDEN 1978 assumes low-mass eta pi pi region is dominantly 1**++. See BARBERIS 1998C and MANAK 2000A for discussion.


pdgid: M008R01
text:
Value obtained selecting the region corresponding to f_{{0}}(980) in the pi+ pi- mass spectrum. The sytematic error includes the uncertainty on the partial width f_1() --> eta pi pi obtained from PDG 2010 data.


pdgid: M008R13
text:
Using B(J/psi --> gamma f_1(1285) --> gamma gamma rho0)=0.25E-4 and B(J/psi --> gamma f_1(1285) --> gamma 2pi+ 2pi-)=0.55E-4 given by MIR 1988.


pdgid: M008R12
text:
Using B(J/psi --> gamma f_1(1285) --> gamma gamma rho0)=0.25E-4 and B(J/psi --> gamma f_1(1285) --> gamma K Kbar pi)=<0.72E-3.


pdgid: M008R00
text:
ACHASOV 2020 reports two candidate events corresponding to a significance of 2.5 sigma and the branching fraction of 5.1+3.7-2.7E-9.


pdgid: M037M
text:
PWA analysis of AUGUSTIN 1992 assigns 0**-+ quantum numbers to this state rather than 1**++ as before.


pdgid: M058M
text:
Uses multichannel Aitchison-Bowler model (BOWLER 1975). Uses data from DAUM 1980 and DANKOWYCH 1981.


pdgid: M012PP
text:
Extraction based on a combined fit of Crystal Barrel and pi pi scattering data (ALBRECHT 2020), and COMPASS data (ADOLPH 2015), using a coupled-channel model of eta pi, eta^' pi and K Kbar systems.


pdgid: M012PP
text:
Coupled-channel analysis of both the eta pi and eta^' pi systems using ADOLPH 2015  data. Supersedes JACKURA 2018. Performed by JPAC.


pdgid: M012M3
text:
ADOLPH 2015 value is derived from a Breit-Wigner fit with mass-dependent width taking the eta pi and rho pi channels into account.


pdgid: M012W6
text:
From analysis of L3 data at 91 and 183 -- 209 GeV, using Gamma(a_2(1320) --> gamma gamma) = 0.91 keV and SU(3) relations.


pdgid: M012R12
text:
KARSHON 1974 suggest an additional I = 0 state strongly coupled to omega pi pi which could explain discrepancies in branching ratios and masses. We use a central value and a systematic spread.


pdgid: M012R12
text:
Decays to b_1(1040) pi, b_1 --> omega pi. Error increased to account for possible systematic errors of complicated analysis.


pdgid: M012R14
text:
From T-matrix pole based on combined fit of Crystal Barrel and pi pi scattering data   (ALBRECHT 2020), and COMPASS data (ADOLPH 2015), using a coupled-channel model of   eta pi, eta^' pi and K Kbar systems.


pdgid: M012R13
text:
Using B(eta^' --> pi+ pi- eta) = 0.441, B(eta --> gamma gamma) = 0.389 and B(eta --> pi+ pi- pi0) = 0.236.


pdgid: M147PP
text:
T-matrix pole, 5 poles, 5 channels, including scattering data from HYAMS 1975 (pi pi), LONGACRE 1986 (K Kbar), BINON 1983 (eta eta), and BINON 1984C (eta eta^').


pdgid: M147PP
text:
Coupled-channel analysis of pbar p --> 3pi0, pi0 eta eta, and pi0 pi0 eta on sheet IV. Demonstrates explicitly that f_{{0}}(500) and f_{{0}}(1370) are two different poles.


pdgid: M147M5
text:
K-matrix pole from combined analysis of pi- p --> pi0 pi0 n, pi- p --> K Kbar n, pi+ pi- --> pi+ pi-, pbar p --> pi0 pi0 pi0, pi0 eta eta, pi0 pi0 eta, pi+ pi- pi0, K+ K- pi0, K0S K0S pi0, K+ K0S pi- at rest, pbar n --> pi- pi- pi+, K0S K- pi0, K0S K0S pi- at rest.


pdgid: M147G01
text:
Including interference with the f_{{2}}^'(1525) (parameters fixed to the values from the 2008 edition of this review, PDG 2008) and f_{{2}}(1270). May also be the f_{{0}}(1500).


pdgid: M147R14
text:
From a combined K-matrix analysis of Crystal Barrel (0. p pbar --> pi0 pi0 pi0, pi0 eta eta, pi0 pi0 eta), GAMS (pi p --> pi0 pi0 n, eta eta n, eta eta^' n), and BNL (pi p --> K Kbar n) data.


pdgid: M027M4
text:
From fit to the a_0(980) pi **0**-+ partial wave. Cannot rule out a a_0(980) pi **1**++ partial wave.


pdgid: M027M6
text:
These experiments identify only one pseudoscalar in the 1400 -- 1500 range. Data could also refer to eta(1475).


pdgid: M027R7
text:
Using B(J/psi --> gamma eta(1405) --> gamma K Kbar pi)=4.2E-3 and B(J/psi --> gamma eta(1405) --> gamma gamma rho0)=6.4E-5.


pdgid: M027R00
text:
ABLIKIM 2024I reports B(J/psi --> e+ e- eta(1405) --> f_0(980) pi0 --> pi+ pi- pi0) = 2.04+-0.20+-0.08E-7.


pdgid: M027R00
text:
ABLIKIM 2012E reports B(J/psi --> gamma eta(1405) --> f_0(980) pi0 --> pi+ pi- pi0) = 1.5+-0.11+-0.11E-5 and B(J/psi --> gamma eta(1405) --> f_0(980) pi0 --> pi0 pi0 pi0) = 7.10+-0.82+-0.72E-6.


pdgid: M027R00
text:
ABLIKIM 2017AJ reports B(psi(2S) --> gamma eta(1405) --> gamma f_0(980) pi0 --> gamma pi+ pi- pi0) < 5.0E-7.


pdgid: M027R14
text:
Constructive interference between X(1835) and eta(1405)/eta(1475) decays to gamma phi is assumed. Also see eta(1475). ABLIKIM 2018I reports the inverse as 11.10+-3.5.


pdgid: M027R14
text:
Destructive interference between X(1835) and eta(1405)/eta(1475) decays to gamma phi is assumed. Also see eta(1475). ABLIKIM 2018I reports the inverse as 7.53+-2.49.


pdgid: M027R14
text:
Calculated by us from B(J/psi --> eta(1405) gamma --> phi gamma gamma) < 0.82E-4 and B(J/psi --> eta(1405) gamma --> rho0 gamma gamma) = 1.07+-0.17+-0.11E-4.


pdgid: M109M
text:
From a partial wave analysis of the systems (gamma X), with X --> eta^' eta^', and (eta^' X), with X --> gamma eta^' in the decay J/psi --> gamma eta^' eta^'. The intermediate resonance X is parametrized by a constant-width, relativistic Breit-Wigner.


pdgid: M006R6
text:
Calculated using G(a_0(980) --> K Kbar)/G(a_0(980) --> eta pi) = 0.24+-0.07 for a_{{0}}(980) fractions.


pdgid: M125M
text:
From a fit of the interfering omega(1420) and omega(1650) with a relative phase of pi and other parameters floating.


pdgid: M125M
text:
From a fit with contributions from omega(782), phi(1020), omega(1420), and omega(1650). See ACHASOV 2020A for a further analysis of the pi+ pi- pi0 data.


pdgid: M125M
text:
Using the data of AKHMETSHIN 2000D and ANTONELLI 1992. The rho pi dominance for the energy dependence of the omega(1420) and omega(1650) width assumed.


pdgid: M125M
text:
From a fit to two Breit-Wigner functions interfering between them and with the omega,phi tails with fixed (+,-,+) phases.


pdgid: M125W
text:
From a fit with contributions from omega(1420), omega(1650), and phi(1680). The mass of omega(1420) is fixed to the PDG 2018 value of 1420 MeV.


pdgid: M125W
text:
From a fit of a VMD model with two effective resonances with masses of 1450 MeV and 1700 MeV to describe the excited vector states omega(1420), rho(1450), omega(1650), and rho(1700). Systematic errors not evaluated.


pdgid: M125G6
text:
From a fit with contributions from omega(1420), omega(1650), and phi(1680). The mass of omega(1420) is fixed to the PDG 2018 value of 1420 MeV. Fixing also the width of omega(1420) to the PDG 2018 value of 220 MeV results in 3.0+-1.6E-8 measurement.


pdgid: M125G6
text:
From a fit of the interfering omega(1420) and omega(1650) with a relative phase of pi and other parameters floating. From an alternative fit Gamma(omega(1420) --> omega eta)/Gamma(total)xGamma(omega(1420) --> e+ e-) = 5.3+-1.6 eV.


pdgid: M125G6
text:
From a fit with contributions from omega(1420), omega(1650), and phi(1680). The mass and the width of omega(1420) are fixed to the 2014 edition (PDG 2014) of this review.


pdgid: M149R3
text:
Using results on pbar p --> a_0(1450)0 pi0, a_0(1450) --> eta pi0 from ABELE 1996C and assuming the omega rho mechanism for the omega pi pi state.


pdgid: M105M1
text:
Mass and width of the rho(770) fixed at 775 and 149 MeV, respectively; solution 2 of model 2, eta --> gamma gamma decays used.


pdgid: M105M1
text:
From the combined fit of AULCHENKO 2015 and ACHASOV 2018 in the model with the interfering rho(1450), rho(1700) and rho(2150) with the parameters of the rho(1450) and rho(1700) floating and the mass and width of the rho(2150) fixed at 2155 MeV and 320 MeV, respectively. The phases of the resonances are pi, 0 and pi, respectively.


pdgid: M105M1
text:
Using the data of AKHMETSHIN 2001B on e+ e- --> eta gamma, AKHMETSHIN 2000D and ANTONELLI 1988 on e+ e- --> eta pi+ pi-.


pdgid: M105M1
text:
Using the data of ANTONELLI 1988, DOLINSKY 1991, and AKHMETSHIN 2000D. The energy-independent width of the rho(1450) and rho(1700) mesons assumed.


pdgid: M105M3
text:
From a phenomenological model based on vector meson dominance with interfering rho(770), rho(1450), and rho(1700). The rho(1700) mass and width are fixed at 1720 MeV and 250 MeV, respectively. Systematic uncertainties not estimated. Supersedes ACHASOV 2013.


pdgid: M105M3
text:
Using Breit-Wigner parameterization of the rho(1450) and assuming equal probabilities of the rho(1450) --> pi pi and rho(1450) --> omega pi decays.


pdgid: M105M3
text:
From a phenomenological model based on vector meson dominance with the interfering rho(1450) and rho(1700) and their widths fixed at 400 and 250 MeV, respectively. Systematic uncertainty not estimated.


pdgid: M105M3
text:
Using the data of AKHMETSHIN 2003B and BISELLO 1991B assuming the omega pi0 and pi+ pi- mass dependence of the total width. rho(1700) mass and width fixed at 1700 MeV and 240 MeV, respectively.


pdgid: M105M3
text:
Using Breit-Wigner parameterization of the rho(1450) and assuming the omega pi- mass dependence for the total width.


pdgid: M105M3
text:
Mass-independent width parameterization. rho(1700) mass and width fixed at 1700 MeV and 235 MeV respectively.


pdgid: M105M5
text:
From a fit of the pion form factor using the GOUNARIS 1968 parametrization with the complex phase of the rho-omega interference leaving rho(1450), rho(1700) resonances as free parameters of the fit. The fit uses also data from CMD-2 and DM2 experiments. Systematic errors not estimated.


pdgid: M105M5
text:
From a Dalitz plot analysis in an isobar model with rho(1450) and rho(1700) masses and widths floating.


pdgid: M105M5
text:
Using the GOUNARIS 1968 parametrization of the pion form factor leaving the masses and widths of the rho(1450), rho(1700), and rho(2150) resonances as free parameters of the fit.


pdgid: M105M5
text:
From the combined fit of the tau- data from ANDERSON 2000A and SCHAEL 2005C and e+ e- data from the compilation of BARKOV 1985, AKHMETSHIN 2004, and ALOISIO 2005. rho(1700) mass and width fixed at 1713 MeV and 235 MeV, respectively. Supersedes BARATE 1997M.


pdgid: M105G4
text:
Includes non-resonant contribution. The selected fit model includes three rho excited states. Model uncertainty is 20%.


pdgid: M105G6
text:
From 2 gamma decay mode of eta using 1465 MeV and 310 MeV for the rho(1450) mass and width. Recalculated by us.


pdgid: M105G6
text:
Using the data of AKHMETSHIN 2001B on e+ e- --> eta gamma, AKHMETSHIN 2000D and ANTONELLI 1988 on e+ e- --> eta pi+ pi-. Recalculated by us using width of 226 MeV.


pdgid: M105R00
text:
From a fit to the e+ e- --> eta pi+ pi- cross section with vector meson dominance model including rho(770), rho(1450), and rho(1700) decaying exclusively via eta rho(770). Masses and widths of vector states are fixed to PDG 2014. Coupling constants are assumed to be real.


pdgid: M105R04
text:
Using Breit-Wigner parametrization of the rho(1450) with mass and width of 1465 MeV and 400 MeV, respectively.


pdgid: M105R2
text:
From a phenomenological model based on vector meson dominance with rho(1450) and phi(1680) masses and widths from the PDG 2012.


pdgid: M175M5
text:
From a fit to gamma phi invariant mass. Angular analysis consistent with J**PC = 0-+. Other J**PC not excluded.


pdgid: M175G2
text:
Using eta(1475) mass of 1481 MeV and width of 48 MeV. The upper limit increases to 0.140 keV if the world average value, 87 MeV, of the width is used.


pdgid: M175R00
text:
Seen as a peak in gamma phi invariant mass. Angular analysis consistent with J**PC = 0-+. Other J**PC not excluded. Also see eta(1405).


pdgid: M152PP
text:
T-matrix pole from coupled channel K-matrix fit to data on J/psi --> gamma pi0 pi0 (ABLIKIM 2015AE) and J/psi --> gamma K0S K0S (ABLIKIM 2018AA).


pdgid: M152PP
text:
T-matrix pole of 3 channel unitary model fit to data from AAIJ 2014BR and AAIJ 2017V extracted using Pade approximants.


pdgid: M152PP
text:
Pole position from combined analysis of pi- p --> pi0 pi0 n, pi- p --> K Kbar n, pi+ pi- --> pi+ pi-, pbar p --> pi0 pi0 pi0, pi0 eta eta, pi0 pi0 eta, pi+ pi- pi0, K+ K- pi0, K0S K0S pi0, K+ K0S pi- at rest, pbar n --> pi- pi- pi+, K0S K- pi0, K0S K0S pi- at rest.


pdgid: M152M
text:
The pi+ pi- mass spectrum is described by a coherent sum of two Breit-Wigner resonances,  f_{{0}}(1500) and a new X(1540) with mass 1540.2+-7.0+36.3-6.1 MeV and width 157+-19+11-77  MeV.


pdgid: M152M
text:
From partial wave analysis including all possible combinations of 0**++, 2**++, and 4**++ resonances.


pdgid: M152R12
text:
From a Breit-Wigner fit involving 9 resonances and a resonating exotic eta_1(1855) --> eta eta^' P-wave.


pdgid: M013M1
text:
From an amplitude analysis where the f_{{2}}^'(1525) width and elasticity are in complete disagreement with the values obtained from K Kbar channel, making the solution dubious.


pdgid: M013M3
text:
From a fit to a Breit-Wigner line shape plus a second-order polynomial function. Systematic errors not evaluated.


pdgid: M013M9
text:
T-matrix pole, 4 poles, 4 channels, including scattering data from HYAMS 1975 (pi pi), LONGACRE 1986 (K Kbar), BINON 1983 (eta eta).


pdgid: M013M10
text:
In the SU(3) based model with a specific interference pattern of the f_{{2}}(1270), a_{{2}}^0(1320), and f_{{2}}^'(1525) mesons incoherently added to the f_{{0}}(1710) and non-resonant background.


pdgid: M013W7
text:
From analysis of L3 data at 91 and 183 -- 209 GeV, using Gamma(f_2^'(1525) --> K Kbar) = 68 MeV and SU(3) relations.


pdgid: M013R8
text:
Combining results of GAM4 with those of WA76 on K Kbar central production and results of CBAL, MRK3 and DM2 on J/psi --> gamma eta eta.


pdgid: M013R3
text:
Using the compilation of the cross sections for f_{{2}}^'(1525) production in K- p collisions from ASTON 1988D.


pdgid: M013R1
text:
MARTIN 1979 uses the PAWLICKI 1977 data with different input value of the f_2^'(1525) --> K Kbar branching ratio.


pdgid: M123M
text:
From a simultaneous analysis of the annihilations pbar p --> 3pi0, pi0 eta eta including AKER 1991 data.


pdgid: M123W3
text:
From analysis of L3 data at 91 and 183 -- 209 GeV, using f_{{2}}(1565) mass of 1570 MeV, width of 160 MeV, Gamma(pi pi) = 25 MeV, and SU(3) relations.


pdgid: M188M
text:
From a vector dominance fit to the Born cross section between 1.05 and 2.0 GeV with rho(770), rho(1570), rho(1700), rho(2150). The fit also uses SND data from the VEPP-2M collider below 1.02 GeV and from LEES 2017H and ABLIKIM 2021A above 1.5 GeV.


pdgid: M188M
text:
From a fit using a two resonance model in which the mass and width of the other resonance are fixed at the rho(1700) values from PDG 2020.


pdgid: M164M
text:
Superseded by DZIERBA 2006 excluding this state in a more refined PWA analysis, with 2.6 M events of pi- p --> pi- pi- pi+ p and 3 M events of pi- p --> pi- pi0 pi0 p of E852 data.


pdgid: M164R1
text:
From the PWA analysis of 2.6 M pi- p --> pi- pi- pi+ p and 3 M events of pi- p --> pi- pi0 pi0 p of E852 data. Supersedes ADAMS 1998B.


pdgid: M164R3
text:
From the PWA analysis of 2.6 M pi- p --> pi- pi- pi+ p and 3 M events of pi- p --> pi- pi0 pi0 p of E852 data. Supersedes CHUNG 2002.


pdgid: M126M
text:
From a VDM fit to AKHMETSHIN 2017A omega eta data with two additional resonances of low statistical evidences.


pdgid: M126M
text:
From a fit with contributions from omega(1420), omega(1650), and phi(1680). The mass of omega(1420) is fixed to the PDG 2018 value of 1420 MeV. Fixing also the width of omega(1420) to the PDG 2018 value of 220 MeV results in 1694+-9 MeV measurement.


pdgid: M126M
text:
From a fit with contributions from omega(782), phi(1020), omega(1420), and  omega(1650). See ACHASOV 2020A for a further analysis of the pi+ pi- pi0 data.


pdgid: M126W
text:
From a fit with contributions from omega(1420), omega(1650), and phi(1680). The mass of omega(1420) is fixed to the PDG 2018 value of 1420 MeV. Fixing also the width of omega(1420) to the PDG 2018 value of 220 MeV results in 94+-13 MeV measurement.


pdgid: M126G5
text:
From a fit with contributions from omega(1420), omega(1650), and phi(1680). The mass of omega(1420) is fixed to the PDG 2018 value of 1420 MeV. Fixing also the width of omega(1420) to the PDG 2018 value of 220 MeV results in 5.4+-0.6E-7 measurement.


pdgid: M126G5
text:
From a fit of the interfering omega(1420) and omega(1650) with a relative phase of pi and other parameters floating. From an alternative fit Gamma(omega(1650) --> omega eta)/Gamma(total)xGamma(omega(1650) --> e+ e-) = 51+-3 eV.


pdgid: M126R00
text:
From a fit of a VMD model with two effective resonances with masses of 1450 MeV and 1700 MeV to describe the excited vector states omega(1420), rho(1450), omega(1650), and rho(1700). The width of the highest mass effective resonance is fixed at 315 MeV.


pdgid: M034M
text:
Clear phase rotation seen in 2**-S, 2**-P, 2**-D waves. We quote central value and spread of single-resonance fits to three channels.


pdgid: M034M
text:
From a two-resonance fit to four 2**-0**+ waves. This should not be averaged with all the single resonance fits.


pdgid: M034W2
text:
Primakoff reaction. Assumes incoherent f_2(1270) pi contribution to 3 pi final state and uses B(pi_2(1670) --> f_2() pi) = 56%.


pdgid: M067M1
text:
From a VDM fit to ZHU 2023 eta phi gamma data with two resonances, phi(1680), phi(2170), and a third resonance with mass 1850.7+-5.3 MeV and width 25+-35 MeV of 1.7 sigma statistical evidence.


pdgid: M067M1
text:
From a fit using a vector meson dominance model with contributions from phi(1680), phi(2170) and non resonant contribution.


pdgid: M067M1
text:
From the analysis of the combined measurements of CS(e+ e- --> eta phi) from BaBar, Belle, BESIII, CMD3.


pdgid: M067M1
text:
From a partial wave amplitude analysis at sqrt(s) = 2.125 GeV which includes all the possible  intermediate states that match J**PC conservation in the subsequent two-body decay. The  intermediate states are parameterized with the relativistic Breit-Wigner functions. Statistical error only.


pdgid: M067M1
text:
From a fit using a vector meson dominance model with contribution from rho(770), omega(782), phi(1020), omega(1420), rho(1450).


pdgid: M067M1
text:
Using a vector meson dominance model with contribution from phi(1020), phi(1680), and higher mass excitations of rho(770) and omega(782).


pdgid: M067M1
text:
From the simultaneous fit to the K Kbar^*(892) + c.c. and phi eta data from AUBERT 2008S using the results of AUBERT 2007AK.


pdgid: M067M1
text:
From the combined fit of AKHMETSHIN 2003 and MANE 1981 also including rho, omega, and phi. Neither isospin nor flavor structure known.


pdgid: M067R00
text:
From a solution of the fit using a vector meson dominance model with contributions from phi(1680), phi(2170) and non resonant contribution. Other solutions with equal fit   quality give (219+-15+-18) eV, (163+-11+-13) eV and (203+-12+-18) eV.


pdgid: M067R00
text:
From the analysis of the combined measurements of CS(e+ e- --> eta phi) from BaBar, Belle, BESIII, CMD3. Four solutions are found, with equal fit quality: (79+-4+-16) eV, (127+-5+-12) eV, (65+5-4+-13) eV, (215+8-5+-11) eV.


pdgid: M067G5
text:
From the combined fit of AKHMETSHIN 2003 and MANE 1981 also including rho, omega, and phi. Neither isospin nor flavor structure known. Recalculated by us.


pdgid: M067R03
text:
The 90% CL upper limit on the Born cross sections sigma(e+ e- --> phi(1680) --> f_2^'(1525) gamma --> eta eta gamma) and sigma(e+ e- --> rho(1700) --> f_0(1500) gamma --> eta eta gamma) is 10.6 pb.


pdgid: M015M1
text:
From a phase shift solution containing a f_{{2}}^'(1525) width two times larger than the K Kbar result.


pdgid: M015M6
text:
Seen in 2.5-3 GeV/c pbar p. 2pi+ 2pi-, with 0, 1, 2 pi+ pi- pairs in rho band not seen by OREN 1974 (2.3 GeV/c pbar p) with more statistics. (Jan. 1976)


pdgid: M015W6
text:
Seen in 2.5-3 GeV/c pbar p. 2pi+ 2pi-, with 0, 1, 2 pi+ pi- pairs in rho0 band not seen by OREN 1974 (2.3 GeV/c pbar p) with more statistics. (Jan. 1979)


pdgid: M065M1
text:
An additional 40 MeV uncertainty in both the mass and width is present due to the choice of the background shape.


pdgid: M065M8
text:
From a vector dominance fit to the Born cross section between 1.05 and 2.0 GeV with rho(770), rho(1570), rho(1700), rho(2150). The fit also uses SND data from the VEPP-2M collider below 1.02 GeV and from LEES 2017H and ABLIKIM 2021A above 1.5GeV.


pdgid: M065M8
text:
Taking into account both rho(1450) and rho(1700) contributions. Using the data of ACHASOV 2000I on e+ e- --> omega pi0 and of EDWARDS 2000A on tau- --> omega pi- nu_tau. rho(1450) mass and width fixed at 1400 MeV and 500 MeV respectively.


pdgid: M065M8
text:
Taking into account the rho(1700) contribution only. Using the data of ACHASOV 2000I on e+ e- --> omega pi0 and of EDWARDS 2000A on tau- --> omega pi- nu_tau.


pdgid: M065M2
text:
Using the GOUNARIS 1968 parameterization with a fixed width. Value is average using different K pi S-wave parametrizations in fit.


pdgid: M065G11
text:
Includes non-resonant contribution. The selected fit model includes three rho excited states. Model uncertainty is 80%.


pdgid: M065R01
text:
From a phenomenological model based on vector meson dominance with interfering rho(700), rho(1450), and rho(1700). The rho(1700) mass and width are fixed at 1720 MeV and 250 MeV, respectively. Systematic uncertainty not estimated. Supersedes ACHASOV 2013.


pdgid: M065R5
text:
Residue from T-matrix pole, 2 poles, 3 channels, Chew-Mandelstam functions and simplified analytic continuation for the 4pi channel. Includes scattering data from HYAMS 1975 and model-independent calculation of GARCIA-MARTIN 2011A.


pdgid: M162PP
text:
Based on combined fit of Crystal Barrel and pi pi scattering data (ALBRECHT 2020), and COMPASS data (ADOLPH 2015), using a coupled-channel model of eta pi, eta^' pi and K Kbar systems.


pdgid: M162W3
text:
From analysis of L3 data at 91 and 183 -- 209 GeV, using a_{{2}}(1700) mass of 1730 MeV and width of 340 MeV, and SU(3) relations.


pdgid: M263M
text:
Observed to decay into K0S K+ in a Breit-Wigner amplitude analysis involving D_{{s}}()+ decays into Kbar^*(892)0 K+, Kbar^*(892)+ K0S, Kbar^*(1410)0 K+, a_0(980)+ pi0, and a_0(1817)+ pi0.


pdgid: M263R00
text:
Using D_s()+ --> K+ K- pi+ from ABLIKIM 2021AE. The apparent violation of isospin symmetry may be due to a destructive interference with the f_{{0}}(1710) in the K+ K- channel, and a constructive interference in the K0S K0S channel.


pdgid: M068M
text:
Uses MRK3 data. From a partial-wave analysis of data using a K-matrix formalism with 5 poles, but assuming spin 2. Fit with constrained inelasticity.


pdgid: M068R2
text:
From a partial-wave analysis of data using a K-matrix formalism with 5 poles, but assuming spin 2. Fit with constrained inelasticity.


pdgid: M255R00
text:
Reported with a 2 sigma significance in the fit and an upper limit of Gamma(e+ e-) B(X(1750) --> eta phi) in the range 136 -- 322 eV.


pdgid: M264M
text:
From partial wave analysis of omega phi invariant mass including 0**++, 2**++, and 0**-+ resonances.


pdgid: M264R00
text:
Using one-pion exchange. Assigning this resonance to be f_{{0}}(1710) instead gives B(f_0() --> pi pi) x B(f_0() --> omega phi) = 3.9+-1.0E-3.


pdgid: M038M
text:
From a partial-wave analysis of data using a K-matrix formalism with 5 poles. Includes compilation of several other experiments.


pdgid: M038M
text:
From an amplitude analysis of the reaction pi+ pi- --> 2pi0. The resonance in the 2pi0 final state is not confirmed by PROKOSHKIN 1997.


pdgid: M085M
text:
From a fit of the measured 3(pi+ pi-) lineshape that accounts for the abrupt distortion observed at the p pbar threshold through interference with a second previously unseen narrow resonance near 1880 MeV. The fit uses Breit-Wigner functions for the signal shapes and includes known background contributions. A second solution of the fit gives 37k events.


pdgid: M085M
text:
From a fit of the measured pi+ pi- eta^' lineshape that accounts for the abrupt distortion observed at the p pbar threshold through interference with a second previously unseen narrow resonance near 1870 MeV. The fit uses Breit-Wigner functions for the signal shapes and includes known backgrounds and contributors.


pdgid: M085M
text:
From a fit of the measured 3(pi+ pi-) lineshape to a Flatte formula that accounts for the abrupt distortion observed at the p pbar threshold. The fit also includes known background contributions.


pdgid: M085M
text:
Pole mass from a fit of the measured pi+ pi- eta^' lineshape to a Flatte formula that accounts for the abrupt distortion observed at the p pbar threshold; the fit also includes known backgrounds and contributors, as well as an ad hoc Breit-Wigner function (M ~~ 1919 MeV; Gamma ~~ 51 MeV) that is required for a good fit.


pdgid: M085M
text:
From the fit including final state interaction effects in isospin 0 S-wave according to SIBIRTSEV 2005A. Supersedes ABLIKIM 2010G.


pdgid: M085M
text:
From a fit of the pi+ pi- eta^' mass distribution to a combination of gamma f_1(1510), gamma X(1835), and two states gamma X(2120) and gamma eta(2370), for M(pi+ pi- eta^') < 2.8 GeV,and accounting for backgrounds from non-eta^' events and J/psi --> pi0 pi+ pi- eta^'.


pdgid: M085M
text:
The selected process is J/psi --> omega a_0(980) pi with B(J/psi --> omega X --> omega a_0(980)+- ( --> eta pi+- ) pi-+) = 1.50+-0.26+0.72-0.36E-4. Not seen in J/psi(1S) --> omega K+ K- eta by ABLIKIM 2024BQ with 90% CL upper limit of 9.55E-7. This state may be also due to eta_{{2}}(1870) or to a combination of X(1835) and eta_{{2}}(1870).


pdgid: M085M
text:
From a fit of the p pbar mass distribution to a combination of gamma X(1835), gamma R with M(R) = 2100 MeV and Gamma(R) = 160 MeV, and gamma p pbar phase space, for M(p pbar) < 2.85 GeV.


pdgid: M085M
text:
Evidence for a threshold enhancement in the p pbar mass spectrum was also reported by ABE 2002K, AUBERT,B 2005L, and WANG 2005A in B+ --> p pbar K+, WANG 2005A in B0 --> p pbar K0S, ABE 2002W in Bbar0 --> p pbar D0, DEL-AMO-SANCHEZ 2012 in B --> D(D^*)p pbar(pi), and WEI 2008 in B+ --> p pbar pi+ decays. Not seen by ATHAR 2006 in Upsilon(1S) --> p pbar gamma.


pdgid: M085M
text:
From the fit including final state interaction effects in isospin 0 S-wave according to SIBIRTSEV 2005A. Systematic errors not estimated.


pdgid: M085W
text:
Pole width from a fit of the measured pi+ pi- eta^' lineshape to a Flatte formula that accounts for the abrupt distortion observed at the p pbar threshold; the fit also includes known backgrounds and contributors, as well as an ad hoc Breit-Wigner function (M ~~ 1919 MeV; Gamma ~~ 51 MeV) that is required for a good fit.


pdgid: M085G01
text:
From a two-resonance fit and constructive interference of the eta(1760) and X(1835), a significance of 2.8 sigma.


pdgid: M085G01
text:
From a two-resonance fit and destructive interference of the eta(1760) and X(1835), a significance of 2.8 sigma.


pdgid: M085R03
text:
ABLIKIM 2016J quotes B( J/psi --> gamma X(1835) ) x B( X(1835) --> pi+ pi- eta^' ) = 3.93+-0.38+0.31-0.84E-4 from a fit of the measured pi+ pi- eta^' lineshape that accounts for the abrupt distortion observed at the p pbar threshold with a Flatte formula in addition to known backgrounds and contributors, as well as an ad hoc Breit-Wigner (M ~~ 1919 MeV; Gamma ~~ 51 MeV) that is required for a good fit. Another explanation for the distortion provided by ABLIKIM 2016J is that a second resonance near 1870 MeV interferes with the X(1835); fits to this possibility yield product branching fraction values compatible with that shown within the respective systematic uncertainties.


pdgid: M085R04
text:
Seen as a peak in gamma phi invariant mass. Angular analysis consistent with J**PC = 0-+. Other J**PC not excluded.


pdgid: M085R06
text:
ABLIKIM 2024B quotes B( J/psi --> gamma X(1835) ) x B( ) = 1.19+-0.30+-0.15E-5 for constructive interference and 2.07+-0.50+-0.36E-5 for destructive interference from a fit of the measured 3(pi+ pi-) lineshape that accounts for the abrupt distortion observed at the p pbar threshold through interference with a second narrow resonance near 1880 MeV. The solution for destructive interference gives 37k events.


pdgid: M267M
text:
From a Breit-Wigner fit involving 9 resonances and the resonating exotic eta_1(1855) --> eta eta^' P-wave. For analysis details see ABLIKIM 2022AS.


pdgid: M227M
text:
From a model-independent partial wave analysis fit to a relativistic Breit-Wigner function with a floating width.


pdgid: M227W
text:
From a model-independent partial wave analysis fit to a relativistic Breit-Wigner function with a floating mass.


pdgid: M135M
text:
From solution B of amplitude analysis of data on pbar p --> pi pi. See however KLOET 1996 who fit pi+ pi- only and find waves only up to J = 3 to be important but not significantly resonant.


pdgid: M167M
text:
From the combined analysis of ANISOVICH 2000J, ANISOVICH 2001D, ANISOVICH 2001E, and ANISOVICH 2002.


pdgid: M106M
text:
Includes data of ETKIN 1985. The percentage of the resonance going into phi phi **2**++ S(2), D(2), and D(0) is 98+1-3, 0+1-0, and 2+2-1, respectively.


pdgid: M016M
text:
From solution A of amplitude analysis of data on pbar p --> pi pi. See however KLOET 1996 who fit pi+ pi- only and find waves only up to J = 3 to be important but not significantly resonant.


pdgid: M042M1
text:
OAKDEN 1994 makes an amplitude analysis of LEAR data on pbar p --> pi pi using a method based on Barrelet zeros. This is solution A. The amplitude analysis of HASAN 1994 includes earlier data as well, and assume that the data can be parametrized in terms of towers of nearly degenerate resonances on the leading Regge trajectory. See also KLOET 1996 and MARTIN 1997 who make related analyses.


pdgid: M042W1
text:
See however KLOET 1996 who fit pi+ pi- only and find waves only up to J = 3 to be important but not significantly resonant.


pdgid: M032M3
text:
From a fit to the cross section between 2.00 and 3.08 GeV with a coherent sum of a Breit-Wigner resonance and a non-resonant contribution. Could be another state.


pdgid: M032M3
text:
From a fit to the cross section between 2.00 and 3.08 GeV with a coherent sum of Breit-Wigner amplitudes, including contributions from rho(770), rho(1450) and rho(1700). Could be another state.


pdgid: M032M3
text:
From the fit to the BABAR data of LEES 2013Q assuming a coherent sum of a single Breit-Wigner resonance and a nonresonant contribution. The resonance significance is 3.5 sigma.


pdgid: M032M3
text:
From the fit to the BABAR data of LEES 2013Q and BESIII data of ABLIKIM 2019L assuming a coherent sum of a single Breit-Wigner resonance and a nonresonant contribution.


pdgid: M032M3
text:
Could also be another state. Seen in J/psi decay with branching ratio J/psi --> X pi0 --> K+ K- pi0 = 6.7+-1.1+2.2-1.8E-6.


pdgid: M032M2
text:
Seen as bump in I = 1 state. See also COOPER 1968. PEASLEE 1975 confirm pbar p results of ABRAMS 1970, no narrow structure.


pdgid: M032R02
text:
From a Breit-Wigner fit to the Born cross section interfering constructively with the continuum. For destructive interference the value is 0.64+-0.49+-0.42 eV.


pdgid: M032R04
text:
From a solution of the fit to the cross section between 2.00 and 3.08 GeV using a coherent sum of a single Breit-Wigner resonance and a non-resonant contribution. B(a_2(1320) --> eta pi) x B(eta --> gamma gamma) fixed to 0.057. Another solution with equal fit quality gives 137.1+-73.3+-2.1 eV.


pdgid: M103M
text:
From a fit to the e+ e- cross section between 2.00 and 3.08 GeV with a sum of Breit-Wigner  amplitude and a non-resonant contribution.


pdgid: M103M
text:
By a simultaneous fit of the K_2^*(1430)+ K- and K^*(892)+ K- intermediate channels in a partial-wave analysis, assuming the same structure, modelled with a coherent sum of a nonresonant component and a resonant component by a Breit-Wigner function.


pdgid: M103M
text:
From a fit to the cross section below 3.5 GeV measured by BaBar and BESIII with a coherent sum of two modified Breit-Wigner amplitudes (phi(1680) and phi(2170)) and a nonresonant term.


pdgid: M103M
text:
From a fit using a coherent sum of a phase-space modified Breit-Wigner function and a phase-space term.


pdgid: M103M
text:
By a simultaneous fit of the intermediate channels in a partial-wave analysis, assuming the same structure, modelled with a coherent sum of a nonresonant component and a resonant component by a Breit-Wigner function.


pdgid: M103M
text:
From the analysis of the combined measurements of CS(e+ e- --> eta phi) from BaBar, Belle, BESIII, CMD3. The statistical significance for phi(2170) is 7.2 sigma.


pdgid: M103M
text:
From a fit to the cross section between 2.00 and 3.08 GeV with a sum of Breit-Wigner amplitude and a nonresonant contribution. The observed structure can be also due to rho(2150).


pdgid: M103G2
text:
From a solution of the fit using a vector meson dominance model with contributions from phi(1680), phi(2170) and non resonant contribution with mass and width of phi(2170) fixed at 2163.5 MeV and 31.1 MeV respectively. Four solutions are found with equal fit quality giving 0.17 eV (solution I and II) and 18.6 eV (III and IV) at 90% CL.


pdgid: M103G2
text:
From the analysis of the combined measurements of CS(e+ e- --> eta phi) from BaBar, Belle, BESIII, CMD3. The statistical significance for phi(2170) is 7.2 sigma. Four solutions are found, with equal fit quality: (0.56+0.03-0.02+-0.07) eV, (0.36+0.05-0.03+-0.07) eV, (38+-1+-5) eV, (41+-2+-6) eV.


pdgid: M103G2
text:
From a solution of the fit to the cross section below 3.5 GeV measured by BaBar and BESIII with a coherent sum of two modified Breit-Wigner amplitudes (phi(1680) and phi(2170)) and a nonresonant term. The other solution gives 10.11+3.87-3.13 eV.


pdgid: M103G1
text:
From a fit with constructive interference with the phi(1680). In a fit with destructive interference, the value is larger by a factor of 12.


pdgid: M103R11
text:
From a solution of a simultaneous fit of the K_2^*(1430)+ K- and K^*(892)+ K- intermediate channels in a partial-wave analysis, assuming the same structure, modelled with a coherent sum of a nonresonant component and a resonant component by a Breit-Wigner function. The other solution gives 7.1+-0.9 eV. Significance 3.7 sigma.


pdgid: M103R06
text:
By a simultaneous fit of the intermediate channels in a partial-wave analysis, assuming the same structure, modelled with a coherent sum of a nonresonant component and a resonant component by a Breit-Wigner function. A second solution of the fit with equal fit quality gives an upper limit value of 297.6 eV.


pdgid: M103R07
text:
By a simultaneous fit of the intermediate channels in a partial-wave analysis, assuming the same structure, modelled with a coherent sum of a nonresonant component and a resonant component by a Breit-Wigner function. A second solution of the fit with equal fit quality gives a value of 98.8+-7.8 eV.


pdgid: M103R12
text:
From a solution of a simultaneous fit of the K_2^*(1430)+ K- and K^*(892)+ K- intermediate  channels in a partial-wave analysis, assuming the same structure, modelled with a coherent sum of a nonresonant component and a resonant component by a Breit-Wigner function. The other solution gives 161.1+-20.6 eV.


pdgid: M270M
text:
From a fit to the e+ e- cross section between 2.00 and 3.08 GeV with a sum of Breit-Wigner amplitude and a non-resonant contribution.


pdgid: M270M
text:
From a fit to omega pi+ pi- and omega pi0 pi0 with a Breit-Wigner resonance interfering with the continuum. Supersedes ABLIKIM 2022I.


pdgid: M270M
text:
From a fit to the cross section between 2.00 and 3.08 GeV with a coherent sum of Breit-Wigner amplitudes, including contributions from omega(1420) and omega(1650)/phi(1680).


pdgid: M270M
text:
From the fit to the cross section by the coherent sum of resonant component parametrized by a modified Breit-Wigner amplitude and a phase-space contribution for the continuum.


pdgid: M270R01
text:
From a fit to omega pi+ pi- with a Breit-Wigner resonance interfering with the continuum. Solution with constructive interference: 52.9+-17.0+-13.1 eV.


pdgid: M270R00
text:
From a fit to omega pi+ pi- and omega pi0 pi0 with a Breit-Wigner resonance interfering  with the continuum. Solution with constructive interference: 61.1+-32.1+-15.4 eV. Supersedes  ABLIKIM 2022I.


pdgid: M270R02
text:
For constructive interference with omega(1420) and omega(1650)/phi(1680). For destructive interference: 1.25+-0.48+-0.18 eV.


pdgid: M115M
text:
From a partial wave analysis of J/psi --> gamma phi phi that also finds significant signals for for eta(2100), **0**-+ phase space, f_{{0}}(2100), f_{{2}}(2010), f_{{2}}(2300), f_{{2}}(2340), and a previously unseen **0**-+ state X(2500) (M = 2470+15-19+101-23 MeV, Gamma = 230+64-35+56-33 MeV).


pdgid: M107M
text:
Includes data of ETKIN 1985. The percentage of the resonance going into phi phi **2**++ S(2), D(2), and D(0) is 6+15-5, 25+18-14, and 69+16-27, respectively.


pdgid: M107M
text:
Threshold enhancement in Lambda Lambdabar, preferred J**PC are **2**++,  **2**-+, or **1**++. Could be another state.


pdgid: M107W
text:
Threshold enhancement in Lambda Lambdabar, preferred J**PC are **2**++, **2**-+, or **1**++. Could be another state.


pdgid: M041M2
text:
From the combined analysis of ANISOVICH 1999C and ANISOVICH 1999F on pbar p --> eta pi0 pi0, pi0 pi0, eta eta, eta eta^', pi+ pi-.


pdgid: M108M
text:
Includes data of ETKIN 1985. The percentage of the resonance going into phi phi **2**++ S(2), D(2), and D(0) is 37+-19, 4+12-4, and 59+21-19, respectively.


pdgid: M033M2
text:
No evidence for this bump seen in the pbar p data of CHAPMAN 1971B. Narrow state not confirmed by OH 1973 with more data.


pdgid: M247M
text:
Decaying to f_0(980) eta^', fitted together with X(1835), a 600 MeV broad structure around 2.8 GeV, and the tail of the eta_{{c}}(1S). Supersedes ABLIKIM 2020Q.


pdgid: M247M
text:
The state observed by ABLIKIM 2011C at 2120 MeV is not observed with 90% CL upper limit  of 1.49E-5 for J/psi --> gamma X(2120) --> gamma K+ K- eta^' and 6.38E-6 for K0S K0S eta^'.


pdgid: M247W
text:
The state observed by ABLIKIM 2011C at 2120 MeV is not observed with 90% CL upper limit of 1.49E-5 for J/psi --> gamma X(2120) --> gamma K+ K- eta^' and 6.38E-6 for K0S K0S eta^'.


pdgid: M089M
text:
From the combined analysis of ANISOVICH 1999C, ANISOVICH 1999F, ANISOVICH 1999J, ANISOVICH 1999K, and ANISOVICH 2000B.


pdgid: S010M
text:
The CHENG 1975 values for separate transitions were calculated from their Table 7 transition energies. The first error includes a 20% systematic error in the noncircular contaminant shift. The second error is due to a +-5 eV uncertainty in the theoretical transition energies.


pdgid: S010T
text:
Result obtained by averaging the decay length and decay time analyses taking correlations into account.


pdgid: S010T
text:
KOPTEV 1995 report this weighted average of their U-target and Cu-target results, where they have weighted by 1/sigma rather than 1/sigma**2.


pdgid: S010R28
text:
LAZZERONI 2013 uses full data sample collected from 2007 to 2008. This ratio is defined to be  fully inclusive, including internal-bremsstrahlung.


pdgid: S010R28
text:
The ratio is defined to include internal-bremsstrahlung, ignoring direct-emission contributions. AMBROSINO 2009E determined the ratio from the measurement of Gamma(K --> e nu ( gamma ), E(gamma)< 10 MeV) / Gamma(K --> mu nu ( gamma )). 89.8% of K --> e nu ( gamma ) events had E(gamma)<10 MeV.


pdgid: S010R6
text:
Depends on K+ lifetime tau. AMBROSINO 2008A uses PDG 2006 value of tau =  1.2385+-0.0024E-8 sec. The correlation between K_{{e3}}()+ and K_{{mu3}}()+ branching fraction measurements is 62.7%.


pdgid: S010R25
text:
AUERBACH 1967 changed from 0.0797+-0.0054. See comment with ratio G(K+ --> pi0 mu+ nu_mu)/G(K+ --> mu+ nu_mu). The value 0.0785+-0.0025 given in AUERBACH 1967 is an average of AUERBACH 1967 [G(K+ --> pi0 e+ nu_e)G(K+ --> mu+ nu_mu)] and CESTER 1966 [G(K+ --> pi0 e+ nu_e)]G(K+ --> mu+ nu_mu)+ G(K+ --> pi+ pi0)].


pdgid: S010R23
text:
Value calculated from WEISSENBERG 1976 (pi0 e nu), (mu nu), and (pi pi0) values to eliminate dependence on our 1974 (pi 2pi0) and (pi pi+ pi-) fractions.


pdgid: S010R43
text:
LUCAS 1973B gives N(K_{{e3}}) = 786+-3.1%, N(2pi) = 3564+-3.1%. We use these values to obtain quoted result.


pdgid: S010R20
text:
HAIDT 1971 is a reanalysis of EICHTEN 1968. Not included in average because of large discrepancy in Gamma(pi0 mu+ nu)/Gamma(pi0 e+ nu) with more precise results.


pdgid: S010R5
text:
Depends on K+ lifetime tau. AMBROSINO 2008A uses PDG 2006 value of tau = 1.2385+-0.0024E-8 sec. The correlation between K_{{e3}}()+ and K_{{mu3}}()+ branching fraction measurements is 62.7%.


pdgid: S010R26
text:
GARLAND 1968 changed from 0.055+-0.004 in agreement with mu-spectrum calculation of GAILLARD 1970 appendix B. L.G.Pondrom, (private communication 73).


pdgid: S010R26
text:
AUERBACH 1967 changed from 0.0602+-0.0046 by erratum which brings the mu-spectrum calculation into agreement with GAILLARD 1970 appendix B.


pdgid: S010R29
text:
Not used in the fit. This result enters the fit via correlation of K_e3()+ and K_mu3()+ branching fraction measurements of AMBROSINO 2008A.


pdgid: S010R29
text:
CHIANG 1972 G(K+ --> pi0 mu+ nu_mu)/G(K+ --> pi0 e+ nu_e) is statistically independent of CHIANG 1972 [G(K+ --> pi0 mu+ nu_mu)/G(total) and [G(K+ --> pi0 e+ nu_e)/G(total).


pdgid: S010R29
text:
HAIDT 1971 is a reanalysis of EICHTEN 1968. Not included in average because of large discrepancy with more precise results.


pdgid: S010R06
text:
BATLEY 2024 reported the result extrapolated to the full kinematic space, based on the measurement B(K+- --> pi0 pi0 mu+- nu) = 0.65+-0.03E-6, in the kinematic region where the squared dilepton mass is above 0.03 GeV**2/c**4.


pdgid: S010R80
text:
Data collected in 2003 -- 2004. This leads to the scalar form factor (1+ delta_{{EM}}) f_{{s}} = 6.079+-0.012+-0.027+-0.046 where the last error is due to the normalizing decay mode uncertainty.


pdgid: S010R21
text:
BATLEY 2012 uses data collected in 2003 -- 2004. The result is inclusive of K+- --> pi+ pi- e+- nu gamma decays. Using PDG 2012 value for Gamma(pi+ pi- pi+)/Gamma = 5.59+-0.04E-2. BATLEY 2012 obtains B(pi+ pi- e nu) = 4.257+-0.004+-0.035E-5 where the syst. error is dominated by the error on the normalization mode.


pdgid: S010R21
text:
PISLAK 2001 reports Gamma(pi+ pi- e+ nu_e)/Gamma(total)= 4.109+-0.008+-0.110E-5 using the PDG 2000 value Gamma(pi+ pi+ pi-)/Gamma(total)= 5.59+-0.05E-2. We divide by the PDG value and unfold its error from the systematic error. PISLAK 2003 and PISLAK 2010A give additional details on the branching ratio measurement and give improved errors on the S-wave pi-pi scattering length: a(0)**0 = 0.235+-0.013 and a(0)**2 = -0.0410+-0.0027.


pdgid: S010R2
text:
Fully inclusive of final-state radiation. The branching ratio is evaluated using K+ lifetime, = 12.385 ns.


pdgid: S010R24
text:
AUERBACH 1967 changed from 0.3253+-0.0065. See comment with ratio G(K+ --> pi0 mu+ nu_mu)/G(K+ --> mu+ nu_mu).


pdgid: S010R44
text:
LUCAS 1973B gives N(pi 2pi0) = 574+-5.9%, N(2pi) = 3564+-3.1%. We quote 0.5*N(pi 2pi0)/N(2pi) where 0.5 is because only Dalitz pair pi0's were used.


pdgid: S010R3
text:
Inclusive of final-state radiation. Result obtained from averaging two branching ratios: one from a sample with K- --> mu nu ( gamma ) tagging and another with K- --> pi- pi0 ( gamma ) tagging.


pdgid: S010R3
text:
Value is not independent of CHIANG 1972 G(K+ --> mu+ nu_mu)/G(total), [G(K+ --> pi+ pi0)/G(total), [G(K+ --> pi+ pi0 pi0)/G(total), [G(K+ --> pi0 mu+ nu_mu)/G(total), and [G(K+ --> pi0 e+ nu_e)/G(total).


pdgid: S010R45
text:
P(mu) cut given in DEMIDOV 1990 paper, 235.1 MeV/c, is a misprint according to authors (private communication).


pdgid: S010R60
text:
ADLER 2000B obtains the branching ratio by extrapolating the measurement in the kinematic region E(mu)> 137 MeV, E(gamma)> 90 MeV to the full SD**+ phase-space. Also reports |F(V) + F(A)| = 0.165+-0.007+-0.011 and -0.04 < F(V)-F(A)< 0.24 at 90% CL.


pdgid: S010R78
text:
KOBAYASHI 2023 observed 95+-10 K(e2gamma(gamma))**SD**+ events and derived B(K(e2gamma(gamma))**SD**+ )/B(K(e2(gamma)) ) = 1.25+-0.14+-0.08. The authors obtained the R(gamma) value 1.98+-0.11E-5 by averaging KOBAYASHI 2023 with ITO 2022 after updating the ITO 2022 result to include internal bremsstrahlung process in the acceptance calculation.


pdgid: S010R78
text:
AMBROSINO 2009E measured the differential width dR(gamma)/dE(gamma) = (1/Gamma(K --> mu nu)) (dGamma(K --> e nu gamma)/dE(gamma)). Result obtained by integrating the differential width over E(gamma) from 10 to 250 MeV.


pdgid: S010R30
text:
CORTINA-GIL 2023D provides values for three kinematic regions. For averaging, we use value with E(gamma)> 10 MeV and 0.6 < cos(theta(e gamma)) < 0.9.


pdgid: S010R30
text:
POLYARUSH 2021 provides values for three kinematic regions. For averaging, we use value with E(gamma)> 10 MeV and 0.6 < cos(theta(e gamma)) < 0.9.


pdgid: S010R30
text:
AKIMENKO 2007 provides values for three kinematic regions. For averaging, we use value with E(gamma)> 10 MeV and 0.6 < cos(theta(egamma)) < 0.9.


pdgid: S010R30
text:
BARMIN 1991 quotes branching ratio Gamma(K --> e pi0 nu gamma)/Gamma(all). The measured normalization is [Gamma(K --> e pi0 nu) + Gamma(K --> pi+ pi+ pi-)]. For comparison with other experiments we used Gamma(K --> e pi0 nu)/Gamma(all) = 0.0482 to calculate the values quoted here.


pdgid: S010R30
text:
First LJUNG 1973 value is for cos(theta(egamma)) <0.9, second value is for cos(theta(egamma)) between 0.6 and 0.9 for comparison with ROMANO 1971.


pdgid: S010R30
text:
Both ROMANO 1971 values are for cos(theta(egamma))) between 0.6 and 0.9. Second value is for comparison with second LJUNG 1973 value. We use lowest E(gamma) cut for Summary Table value. See ROMANO 1971 for E(gamma) dependence.


pdgid: S010R42
text:
Value obtained from B(K+ --> pi0 mu+ nu_mu gamma) = 2.51+-0.74+-0.12E-5 obtained in the kinematic region E(gamma)> 20 MeV, and then theoretical K(mu3gamma) spectrum has been used. Also B(K+ --> pi0 mu+ nu_mu gamma) = 1.58+-0.46+-0.08E-5, for E(gamma)> 30 MeV and theta(mu gamma) > 20degree, was determined.


pdgid: S010R42
text:
Obtained from measuring B(K(mu3gamma)) / B(K_{{mu3}}()) and using PDG 2002 value B(K_{{mu3}}()) = 3.27%. B(K(mu3gamma)) = 8.82+-0.94+-0.86E-5 is obtained for 5 MeV < E(gamma) < 30 MeV.


pdgid: S010R79
text:
The cut on the photon energy implies W**2 > 0.2. BATLEY 2010A obtains the INT and DE fractional branchings with respect to IB from a simultaneous kinematical fit of INT and DE and then we use the PDG 2010 value for B(K+ --> pi+ pi0) = 20.66+-0.08 to determine the IB. The INT and DE correlation coefficients -0.83. Assuming a constant electric amplitude, X(E), this INT value implies X(E) = -24+-6 GeV**-4.


pdgid: S010R65
text:
The cut on the photon energy implies W**2 > 0.2. BATLEY 2010A obtains the INT and DE fractional branchings with respect to IB from a simultaneous kinematical fit of INT and DE and then we use the PDG 2010 value for B(K+ --> pi+ pi0) = 20.66+-0.08 to determine the IB. The INT and DE correlation coefficients -0.93. Assuming constant electric and magnetic amplitudes, X(E) and X(M), these INTand DE values imply X(E) = -24+-6 GeV**-4 and X(M) = -254+-9 GeV**-4.


pdgid: S010R65
text:
ADLER 2000C measures the INT component to be (-0.4+-1.6)% of the inner bremsstrahlung (IB) component.


pdgid: S010R00
text:
BATLEY 2019 result is obtained from an exposure of 1.7E11 charged kaon decays recorded in 2003 -- 2004. The study of the kinematic space shows evidence for a structure dependent contribution consistent with predictions from chiral perturbation theory.


pdgid: S010R63
text:
ARTAMONOV 2024 obtains the branching ratio B(K+ --> pi+ pi0 pi0 gamma) = 3.7+-0.9+-0.3E-6 by normalizing to B(K+ --> pi+ pi0 pi0) = 1.760+-0.023E-2.


pdgid: S010R12
text:
CORTINA-GIL 2024 uses data collected by NA62 at CERN in 2017 to 2018. This result, for the full kinematic range, is extrapolated using O(p**6) ChPT theoretical calculation from the model-independent branching fraction, B(K+ --> pi+ gamma gamma)=9.46+-0.19+-0.07E-7, obtained for 0.2<(mass(gamma gamma)/mass(K))**2 < 0.51. The ChPT parameter chat = 1.144+-0.069+-0.034 is measured.


pdgid: S010R12
text:
LAZZERONI 2014 combines NA62 and NA48/2 results. The result for the full kinematic range is extrapolated from the model-independent branching fraction 9.65+-0.61+-0.14E-7 for (mass(gamma gamma)/mass(K))**2 > 0.2. The measured ChPT parameter chat = 1.86+-0.25.


pdgid: S010R12
text:
KITCHING 1997 is extrapolated from their model-independent branching fraction 6.0+-1.5+-0.7E-7 for 100 MeV/c<P(pi+)<180 MeV/c using Chiral Perturbation Theory.


pdgid: S010R12
text:
BATLEY 2014 uses data collected in 2003 and 2004. Branching ratio is obtained by determining the parameter chat = 1.41+-0.38+-0.11 and integrating the O(p^6) chiral spectrum. A model independent value for the branching ratio is also obtained 8.77+-0.87+-0.17E-7 for kinematic range (mass(gamma gamma)/mass(K))**2 > 0.2.


pdgid: S010R12
text:
ARTAMONOV 2005 limit assumes ChPT with chat= 1.8 with unitarity corrections. With chat= 1.6 and no unitarity corrections they obtain < 2.3E-8 at 90% CL. This partial branching ratio is predicted to be 6.10E-9 and 0.49E-9 for the cases with and without unitarity correction.


pdgid: S010R77
text:
BATLEY 2008 also reports the Chiral Perturbation Theory parameter chat = 0.9+-0.45 obtained using the shape of the e+ e- gamma invariant mass spectrum. By extrapolating the theoretical amplitude to mass(e e gamma) < 260 MeV, it obtains the inclusive B(K+ --> pi+ e+ e- gamma) = 1.29+-0.13+-0.03E-8, where the first error is the combined statistical and systematic errors and the second error is from the uncertainty in chat.


pdgid: S010R41
text:
CORTINA-GIL 2021 assumes Standard Model mu spectrum. The search is performed in the  reconstructed missing mass interval m(miss) > 316 MeV/c**2.


pdgid: S010R41
text:
ARTAMONOV 2016 assumes Standard model mu spectrum. The search is performed in the muon momentum region between 130 and 175 MeV/c.


pdgid: S010R15
text:
Value extrapolated from a measurement in the region z = (/mass(K))**2 >0.08. BATLEY 2009 also evaluated the shape of the form factor using four different theoretical models.


pdgid: S010R15
text:
APPEL 1999 establishes vector nature of this decay and determines form factor f(Z)= f_{{0}}() (1 + deltaZ), Z = M(e e)**2/mass**2(K), delta = 2.14+-0.13+-0.15. Also reports constraints on scalar and tensor interactions: |f_{{S}}| < 6.6E-5, |f_{{T}}| < 3.7E-4 at 90% C.L.


pdgid: S010R15
text:
ALLIEGRO 1992 assumes a vector interaction with a form factor given by lambda = 0.105+-0.035+-0.015 and a correlation coefficient of -0.82.


pdgid: S010R16
text:
CORTINA-GIL 2022A also studies the form factor f(z) dependence of the decay, described via single photon exchange: assuming a linear form factor including pi-pi rescattering,  W(pi pi), as in DAMBROSIO 1998A, finding f(z) = G_{{F}} mass**2(K) (a_{{+}}()  + b_{{+}}() z) + W(pi pi)(z), a_{{+}}() = -0.575+-0.013, b_{{+}}() = -0.722+-0.043.


pdgid: S010R16
text:
BATLEY 2011A also studies the form factor f(z) dependence of the decay, described via single photon exchange: i) assuming a linear form factor, f(z) = f_{{0}}() (1+ delta z ), z = (M(mu mu)/mass(K))**2, finding f_{{0}}() = 0.470+-0.040 and delta = 3.11+-0.57 and ii) assuming a linear form factor including pi-pi rescattering, W(pi pi), as in DAMBROSIO 1998A, finding f(z) = G_{{F}} mass**2(K) (a_{{+}}() + b_{{+}}() z) + W(pi pi)(z), a_{{+}}() = -0.575+-0.039, b_{{+}}() = -0.813+-0.145.


pdgid: S010R16
text:
PARK 2002 ``+-'' result comes from combining K+ --> pi+ mu+ mu- and K- --> pi- mu+ mu-, assuming CP is conserved.


pdgid: S010R16
text:
MA 2000 establishes vector nature of this decay and determines form factor f(z)= f(0) (1 + delta z), z = (M(mu mu)/mass(K))**2, delta = 2.45+1.30-0.95.


pdgid: S010R16
text:
ADLER 1997C gives systematic error 0.7E-8 and theoretical uncertainty 0.6E-8, which we combine in quadrature to obtain our second error.


pdgid: S010R05
text:
Quoted limit is obtained using data collected from 2017 to 2018. CORTINA-GIL 2023B also reports upper limits at 90% C.L. at the level of E-9 for the branching ratios of two prompt decay chains involving pair-production of hidden-sector mediators: K+ --> pi+ a a, a --> e+ e- and K+ --> pi+ S, S --> X X, X --> e+ e-.


pdgid: S010R32
text:
CORTINA-GIL 2021B analysis of the NA62 data taken in 2016 -- 2018 observed 20 candidate events with an expected background of 7 events. The achieved single event sensitivity is 0.839+-0.054E-11. The quoted branching ratio includes result from CORTINA-GIL 2020C which observed two candidate events. This provides evidence for the very rare K+ --> pi+ nu nubar decay, observed with a significance of 3.4 sigma. Search for a feebly interacting scalar or pseudo-scalar particle X in the decay K+ --> pi+ X was performed and an upper limit from < 3E-11 to < 6E-11 at the 90% C.L. was set for an invisible particle with a mass of 0 -- 110 MeV/c**2 and < 1E-11 for mass of 160 -- 260 MeV/c**2.


pdgid: S010R32
text:
CORTINA-GIL 2020C analysis of the NA62 data taken in 2017 observed two candidate events with  an expected background of 1.5 events. The achieved single event sensitivity is 0.389+-0.024E-10. The  quoted branching ratio includes result from CORTINA-GIL 2019B which observed one candidate  event. The corresponding upper limit B(K+ --> pi+ nu nubar) < 1.78E-10 at  90% C.L. Superseded by CORTINA-GIL 2021B.


pdgid: S010R32
text:
Based on a sample of 1.21E11 K+ decays collected in 2016. One signal candidate is observed while the expected background is 0.152 events. The single-event-sensitivity is estimated to be 3.15E-10.


pdgid: S010R32
text:
Observed 3 events with an estimated background of 0.93+-0.17+0.32-0.24. Signal-to-background ratio for each of these 3 events is 0.20, 0.42, and 0.47.


pdgid: S010R32
text:
Value obtained combining the previous result ADLER 2002C with 1 event and the present result with 0 events to obtain an expected background 1.22+-0.24 events and 1 event observed.


pdgid: S010R32
text:
Value obtained combining the previous E787 result ADLER 2002 with 2 events and the present E949 with 1 event. The additional event has a signal-to-background ratio 0.9. Superseded by ARTAMONOV 2008.


pdgid: S010R57
text:
COOPER 1982 and LYONS 1981 limits on nu_{{e}} observation are here interpreted as limits on lepton family number violation in the absence of mixing.


pdgid: S010R49
text:
This result combines SHER 2005 1998 data, APPEL 2000 1996 data, and data from BERGMAN 1997 and PISLAK 1997 theses, all from BNL-E865, with LEE 1990 BNL-E777 data.


pdgid: S010R09
text:
ASHRAF 2024 performed the search using a dataset collected by the NA62 experiment from 2016 to 2018.


pdgid: S010R31
text:
CORTINA-GIL 2022 uses the complete dataset collected by the NA62 experiment at CERN from 2016 to 2018. Supersedes CORTINA-GIL 2019A.


pdgid: S010R70
text:
BATLEY 2017 result is based on data taken in 2003 to 2004. Limits for two-body resonance X in K+- --> pi mu mu decays are also reported.


pdgid: S010R01
text:
CORTINA-GIL 2022 uses the complete dataset collected by the NA62 experiment at CERN from 2016 to 2018.


pdgid: S010R58
text:
COOPER 1982 limit on nubar_{{e}} observation is here interpreted as a limit on lepton number violation in the absence of mixing.


pdgid: S010D2
text:
SMITH 1973 value of K+- --> pi+- pi+ pi- rate difference is derived from SMITH 1973 value of K+- --> pi+- 2pi0 rate difference.


pdgid: S010PTM
text:
Includes three sets of data: 96-97 (ABE 1999S), 98, and 99-00 totaling about three times the ABE 1999S data sample. Corresponds to P(T) < 5.0E-3 at 90% CL.


pdgid: S010IXI
text:
Includes three sets of data: 96-97 (ABE 1999S), 98, and 99-00 totaling about three times the ABE 1999S data sample. Corresponds to Im(xi) < 0.016 at 90% CL.


pdgid: S010DG
text:
BATLEY 2007E includes data from BATLEY 2006. Uses quadratic parametrization and value g_{{+}}()+ g_{{-}}() = 2g from BATLEY 2007B. This measurement neglects any possible charge asymmetries in higher order slope parameters h or k.


pdgid: S010GTP
text:
They form new world averages g(-) = (0.617+-0.018) and g(+) = (0.684+-0.033) which give Deltag(tau') = 0.051+-0.028.


pdgid: S010DG0
text:
BATLEY 2007E includes data from BATLEY 2006A. Uses quadratic parametrization and PDG 2006 value g = 0.626+-0.007 to obtain g_+() - g_-() = 2.2+-2.1+-0.7E-4. Neglects any possible charge asymmetries in higher order slope parameters h or k.


pdgid: S010DG0
text:
Asymmetry obtained assuming that g_{{+}}()+g_{{-}}() = 2x0.652 (PDG 2002) and that asymmetries in h and k are zero.


pdgid: S010DG0
text:
Linear and quadratic slopes from PDG 2004 are used. Any possible charge asymmetries in higher order slope parameters h or k are neglected.


pdgid: S010G0
text:
This fit is obtained with the CABIBBO 2005 matrix element in the 2pi0 invariant mass squared range 0.074094 < mass**2(2pi0)< 0.104244 GeV**2. Electromagnetic corrections and CHPT constraints for pi pi phase shifts (a_{{0}}() and a_{{2}}()) have been used. Also measured (a_{{0}}()- a_{{2}}()) mass(pi+) = 0.2646+-0.0021+-0.0023, where k_{{0}}() was kept fixed in the fit at -0.0099.


pdgid: S010G0
text:
Superseded by BATLEY 2009A. This fit is obtained with the CABIBBO 2005 matrix element in the 2pi0 invariant mass squared range 0.074 GeV**2 < mass**2(2pi0) < 0.097 GeV**2, assuming k = 0 (no term proportional to (s_{{2}}-s_{{1}})**2) and excluding the kinematic region around the cusp (mass**2(2pi0) = (2mass(pi+))**2 +-0.000525 GeV**2). Also pi-pi phase shifts a_{{0}}() and a_{{2}}() are measured: (a_{{0}}()-a_{{2}}())mass(pi+) = 0.268+-0.010+-0.004+-0.013(external) and a_2() mass(pi+) = -0.041+-0.022+-0.014.


pdgid: S010GBB
text:
This fit is obtained using parametrizations of COLANGELO 2006A and BISSEGGER 2009 in the 2pi0 invariant mass squared range 0.074094 < mass**2(2pi0)< 0.104244 GeV**2. Electromagnetic corrections and CHPT constraints for pi pi phase shifts (a_{{0}}() and a_{{2}}()) have been used. Also measured (a_{{0}}()- a_{{2}}()) mass(pi+) = 0.2633+-0.0024+-0.0024, where k_{{0}}() was kept fixed in the fit at 0.0085.


pdgid: S010L0
text:
Data collected in 2004 by NA48/2. Obtained from a fit with a quadratic vector form factor. Correlation coefficient with linear slope is 0.511, with quadratic slope is -0.513. chi**2/NDF = 409.9/381. BATLEY 2018 also performed a combined K_{{e3}}()+- and K_{{mu3}}()+- fit assuming mu-e universality and obtained 14.47+-0.63+-1.17E-3.


pdgid: S010L0
text:
HORIE 2001 assumes mu-e universality in K(lepton3)**+ decay and uses SHIMIZU 2000 value lambda=0.0278+-0.0040 from K(e3)**+- decay.


pdgid: S010LPE
text:
Data collected in 2004 by NA48/2. Correlation coefficient with quadratic slope is -0.929. chi**2/NDF = 569.1/687. BATLEY 2018 also performed a combined K_{{e3}}()+- and K_{{mu3}}()+- fit assuming mu-e universality and obtained 24.24+-0.75+-1.3E-3.


pdgid: S010LPE
text:
YUSHCHENKO 2004B lambda'(+) and lambda''(+) are strongly correlated with coefficient rho(lambda'(+), lambda''(+)) = -0.95.


pdgid: S010LQE
text:
Data collected in 2004 by NA48/2. Correlation coefficient with quadratic slope is -0.929. chi**2/NDF = 569.1/687. BATLEY 2018 also performed a combined K_{{e3}}()+- and K_{{mu3}}()+- fit assuming mu-e universality and obtained 1.67+-0.29+-0.41E-3.


pdgid: S010LPM
text:
Data collected in 2004 by NA48/2. Correlation coefficient with quadratic slope is -0.974, with scalar slope is 0.511. chi**2/NDF = 409.9/381. BATLEY 2018 also performed a combined K_{{e3}}()+- and K_{{mu3}}()+- fit assuming mu-e universality and obtained 24.24+-0.75+-1.3E-3.


pdgid: S010LQM
text:
Data collected in 2004 by NA48/2. Correlation coefficient with linear slope is -0.974, with scalar slope is 0.513. chi**2/NDF = 409.9/381. BATLEY 2018 also performed a combined K_{{e3}}()+- and K_{{mu3}}()+- fit assuming mu-e universality and obtained 1.67+-0.29+-0.41E-3.


pdgid: S010MVE
text:
Data collected in 2004 by NA48/2. chi**2/NDF = 568.9/688. BATLEY 2018 also performed a combined K_{{e3}}()+- and K_{{mu3}}()+- fit assuming mu-e universality and obtained 884.4+-3.1+-6.7 MeV.


pdgid: S010MVM
text:
Data collected in 2004 by NA48/2. chi**2/NDF = 409.9/382. BATLEY 2018 also performed a combined K_{{e3}}()+- and K_{{mu3}}()+- fit assuming mu-e universality and obtained 884.4+-3.1+-6.7 MeV.


pdgid: S010MSM
text:
Data collected in 2004 by NA48/2. chi**2/NDF = 409.9/382. BATLEY 2018 also performed a combined K_{{e3}}()+- and K_{{mu3}}()+- fit assuming mu-e universality and obtained 1208.3+-21.2+-47.5 MeV.


pdgid: S010LAM
text:
Data collected in 2004 by NA48/2. chi**2/NDF = 569.0/688. BATLEY 2018 also performed a combined K_{{e3}}()+- and K_{{mu3}}()+- fit assuming mu-e universality and obtained 24.99+-0.20+-0.62E-3.


pdgid: S010LMM
text:
Data collected in 2004 by NA48/2. chi**2/NDF = 410.3/382. BATLEY 2018 also performed a combined K_{{e3}}()+- and K_{{mu3}}()+- fit assuming mu-e universality and obtained 24.99+-0.20+-0.62E-3.


pdgid: S010LLM
text:
Data collected in 2004 by NA48/2. Combined fit with dispersive vector form factor Lambda(+) = 25.36+-0.58+-0.72. Correlation coefficient is 0.104. chi**2/NDF = 410.3/382. BATLEY 2018 also performed a combined K_{{e3}}()+- and K_{{mu3}}()+- fit assuming mu-e universality and obtained 183.65+-5.92+-14.25E-3.


pdgid: S010FSM
text:
The second error is the theoretical error from the uncertainty in the chiral perturbation theory prediction for lambda(0), +-0.0053, combined in quadrature with the systematic error +-0.0009.


pdgid: S010FSM
text:
The second error is the theoretical error from the uncertainty in the chiral perturbation theory prediction for~lambda(0). Superseded by YUSHCHENKO 2004.


pdgid: S010FSF
text:
BATLEY 2012 uses data collected in 2003 -- 2004. The result is obtained from a measurement of Gamma(pi+ pi- e nu)/Gamma(pi+ pi- pi+) and assumed PDG 2012 value of Gamma(pi+ pi- pi+)/Gamma = 5.59+-0.04E-2.


pdgid: S010FSF
text:
Radiative corrections included. Using Roy equations and not including isospin breaking, PISLAK 2003 obtains the following pi pi scattering lengths a(0)**0 = 0.228+-0.012+-0.004+0.012-0.016(theor.) and a(0)**2 = -0.0365+-0.0023+-0.0008+0.0031-0.0026(theor.).


pdgid: S010RSP
text:
Radiative corrections included. Using Roy equations and including isospin breaking, BATLEY 2010C obtains the following scattering lengths a_{{0}}^0() = 0.2220+-0.0128+-0.0050+-0.0037 (theor.), a_{{0}}^2() = -0.0432+-0.0086+-0.0034+-0.0028 (theor.). The correlation with f_{{s}}^''()/f_{{s}} = -0.954 and with f_{{e}}^'()/f_{{s}} = 0.080. Supersedes BATLEY 2008A.


pdgid: S010RSP
text:
Radiative corrections included. Using Roy equations and not including isospin breaking, BATLEY 2008A obtains the following pi pi scattering length a(0)**0 = 0.233+-0.016+-0.007 a(0)**2 = -0.0471+-0.011+-0.004.


pdgid: S010RPB
text:
Radiative corrections included. Using Roy equations and including isospin breaking, BATLEY 2010C obtains the following scattering lengths a_{{0}}^0() = 0.2220+-0.0128+-0.0050+-0.0037 (theor.), a_{{0}}^2() = -0.0432+-0.0086+-0.0034+-0.0028 (theor.). The correlation with f_{{s}}^'()/f_{{s}} = -0.954 and with f_{{e}}^'()/f_{{s}} = 0.019. Supersedes BATLEY 2008A.


pdgid: S010REF
text:
Radiative corrections included. Using Roy equations and including isospin breaking, BATLEY 2010C obtains the following scattering lengths a_{{0}}^0() = 0.2220+-0.0128+-0.0050+-0.0037 (theor.), a_{{0}}^2() = -0.0432+-0.0086+-0.0034+-0.0028 (theor.). The correlation with f_{{s}}^'()/f_{{s}} = 0.080 and with f_{{s}}^''()/f_{{s}} = 0.019. Supersedes BATLEY 2008A.


pdgid: S010RPF
text:
Radiative corrections included. Using Roy equations and including isospin breaking, BATLEY 2010C obtains the following scattering lengths a_{{0}}^0() = 0.2220+-0.0128+-0.0050+-0.0037 (theor.), a_{{0}}^2() = -0.0432+-0.0086+-0.0034+-0.0028 (theor.). Supersedes BATLEY 2008A.


pdgid: S010RGF
text:
Radiative corrections included. Using Roy equations and including isospin breaking, BATLEY 2010C obtains the following scattering lengths a_{{0}}^0() = 0.2220+-0.0128+-0.0050+-0.0037 (theor.), a_{{0}}^2() = -0.0432+-0.0086+-0.0034+-0.0028 (theor.). Supersedes BATLEY 2008A. The correlation with g_{{p}}^'()/f_{{s}} = -0.914. Supersedes BATLEY 2008A.


pdgid: S010RGF
text:
Radiative corrections included. Using Roy equations PISLAK 2003 obtains the following scattering lengths a_{{0}}^0() = 0.203+-0.033+-0.004, a_{{0}}^2() = -0.055+-0.023+-0.003.


pdgid: S010RGP
text:
Radiative corrections included. Using Roy equations and including isospin breaking, BATLEY 2010C obtains the following scattering lengths a_{{0}}^0() = 0.2220+-0.0128+-0.0050+-0.0037 (theor.), a_{{0}}^2() = -0.0432+-0.0086+-0.0034+-0.0028 (theor.). The correlation with g_{{p}}/f_{{s}} = -0.914. Supersedes BATLEY 2008A.


pdgid: S010F+E
text:
AMBROSINO 2009E measures the absolute value |F(A) + F(V)| which is parametrized as |F(A) + F(V)| = F(V) (1 + lambda(1-x)) + F(A), x = 2E(gamma)/mass(K). (F(A) + F(V)) and lambda are fit parameters. The fitted value of lambda = 0.38+-0.20+-0.02 with a correlation of -0.93 between (F(A) + F(V)) and lambda.


pdgid: S010F+E
text:
HEINTZE 1979 quotes absolute value of |F(A) + F(V)| sin(theta(c)). We use sin(theta(c)) = V(us) = 0.2205.


pdgid: S010F+E
text:
HEARD 1975 quotes absolute value of |F(A) + F(V)| sin(theta(c)). We use sin(theta(c)) = V(us) = 0.2205.


pdgid: S010PL
text:
AOKI 1994 measures xiP(mu) =-0.9996+-0.0030+-0.0048. The above limit is obtained by summing the statistical and systematic errors in quadrature, normalizing to the physically significant region (|xiP(mu)|<1) and assuming that xi=1, its maximum value.


pdgid: S010AFB
text:
CORTINA-GIL 2022A measured the asymmetry A(FB) = 0.0+-0.7E-2. The quoted 90% C.L. was obtained via private communication and also presented at the Moriond 2023 conference. The authors will publish this limit in an addendum to the publication.


pdgid: S011AT
text:
ANGELOPOULOS 1998E measures the asymmetry A(T)= [G(Kbar0(t=0) --> e+ pi- nu(t=tau)) - G(K(t=0) --> e- pi+ nubar(t=tau))]/[G(Kbar0(t=0) --> e+ pi- nu(t=tau)) + G(K(t=0) --> e- pi+ nubar(t=tau))] as a function of the neutral-kaon eigentime tau. The initial strangeness of the neutral kaon is tagged by the charge of the accompanying charged kaon in the reactions p pbar --> K- pi+ K0 and p pbar --> K+ pi- Kbar0. The strangeness at the time of the decay is tagged by the lepton charge. The reported result is the average value of A(T) over the interval 1tau(s)<tau<20tau(s). From this value of A(T) ANGELOPOULOS 2001B, assuming CPT invariance in the e pi nu decay amplitude, determine the T-violating as DeltaS=DeltaS conserving parameter (for its definition, see Review below) 4Re(epsilon) = 6.2+-1.4+-1.0E-3.


pdgid: S011REP
text:
AMBROSINO 2006H uses Bell-Steinberger relations with the following measurements: B(KL --> pi+ pi-) in AMBROSINO 2006F, B(KS --> pi0 pi0 pi0) in AMBROSINO 2005B, the K(S)0-semileptonic charge asymmetry in AMBROSINO 2006E, and K0-semileptonic results in ANGELOPOULOS 1998F.


pdgid: S011REP
text:
LAI 2005A values are obtained through unitarity (Bell-Steinberger relations), improving determination of eta(000) and combining other data from PDG 2004 and APOSTOLAKIS 1999B.


pdgid: S011DRE
text:
ANGELOPOULOS 1998F use DeltaS=DeltaQ. If DeltaS=DeltaQ is not assumed, they find Redelta=3.0+-3.3+-0.6E-4.


pdgid: S011YRE
text:
They use the PDG 2004 for the K(L)0 semileptonic charge asymmetry and PDG 2004 (CP review, CPT NOT ASSUMED) for Re(epsilon).


pdgid: S011XRM
text:
Uses PDG 2004 for the K(L)0 semileptonic charge asymmetry and Re(delta) from CPLEAR, ANGELOPOULOS 1998F.


pdgid: S011DGM
text:
ANGELOPOULOS 1999B assumes only unitarity and combines CPLEAR with other results. Correlated with (mass(K0)-mass(Kbar0))/mass(average) with a correlation coefficient of -0.95.


pdgid: S011XRP
text:
Result obtained from the measurement Gamma(K0S --> pi e nu) / Gamma(K0L --> pi e nu) = 0.993+-0.34, neglecting possible CPT non-invariance and using PDG 2006 values of B(K0L --> pi e nu) = 0.4053+-0.0015, meanlife(L) = 5.114+-0.021E-8 s and meanlife(S) = 0.8958+-0.0005E-10 s.


pdgid: S011XRP
text:
Re(x(+)) can be shown to be equal to the following combination of rates: Re(x(+)) = 1/2 Gamma(KS --> pi e nu) - Gamma(KL --> pi e nu)/Gamma(KS --> pi e nu) + Gamma(KL --> pi e nu) which is valid up to first order in terms violating CPT and/or the Delta(S) = Delta(Q) rule.


pdgid: S012T
text:
ABOUZAID 2011 fit has Delta(m), tau_{{s}}, phi_{{epsilon}}, Re(epsilon^'/epsilon), and Im(epsilon^'/epsilon) as free parameters. See Im(epsilon^'/epsilon) in the ''K(L)0 CP violation'' section for correlation information.


pdgid: S012T
text:
The two ABOUZAID 2011 values use the same full KTeV dataset from 1996, 1997, and 1999. The first enters the ''assuming CPT'' fit and the second enters the ''not assuming CPT'' fit.


pdgid: S012T
text:
ABOUZAID 2011 fit has Delta(m) and tau_{{s}} free but constrains phi_{{epsilon}} to the Superweak value, i.e. assumes CPT. This tau_{{s}} value is correlated with their Delta(m) = mass(K(L)0)-mass(K(S)0) measurement in the K(L)0 listings. The correlation coefficient rho(tau_{{s}}, Delta(m)) = -0.670.


pdgid: S012T
text:
This ALAVI-HARATI 2003 fit has Delta(m) and tau(s) free but constrains phi(+-) to the Superweak value, i.e. assumes CPT. This tau(s) value is correlated with their Delta(m) = mass(K(L)0)-mass(K(S)0) measurement in the K(L)0 listings. The correlation coefficient rho(tau(s),Delta(m)) = -0.396. Superseded by ABOUZAID 2011.


pdgid: S012T
text:
This ALAVI-HARATI 2003 fit has Delta(m), phi(+-), and tau(K_{{S}}) free. See phi(+-) in the ``K_{{L}} CP violation'' section for correlation information. Superseded by ABOUZAID 2011.


pdgid: S012T
text:
CARITHERS 1975 measures the Delta(m) dependence of the total decay rate (inverse mean life) to be Gamma(K(S)0) = [(1.122+-0.004)+0.16*(Delta(m)-0.5348)/Delta(m)]10**10/s, or, in terms of mean life,


pdgid: S012T
text:
HILL 1968 has been changed by the authors from the published value (0.865+-0.009) because of a correction in the shift due to eta(+-). SKJEGGESTAD 1972 and HILL 1968 give detailed discussions of systematics encountered in this type of experiment.


pdgid: S012T
text:
Pre-1971 experiments are excluded from the average because of disagreement with later more precise experiments.


pdgid: S012W1
text:
AKHMETSHIN 1999 is from a measured branching ratio B(K0S --> pi e nu_e)= 7.2+-1.4E-4 and tau(K(S)0)= 0.8934+-0.0008E-10 s. Not independent of measured branching ratio.


pdgid: S012W1
text:
PDG 1998 from K(L)0 measurements, assuming that DeltaS=DeltaQ in K0 decay so that Gamma(K0S --> pi+- e-+ nu_e)= Gamma(K0L --> pi+- e-+ nu_e).


pdgid: S012W2
text:
PDG 1998 from K(L)0 measurements, assuming that DeltaS=DeltaQ in K0 decay so that Gamma(K0S --> pi+- mu-+ nu_mu)= Gamma(K0L --> pi+- mu-+ nu_mu).


pdgid: S012R3
text:
This result combines AMBROSINO 2006C KLOE 2001-02 data with ALOISIO 2002B KLOE 2000 data. K0S --> pi+ pi- fully inclusive.


pdgid: S012R8
text:
BATLEY 2005 is obtained by measuring the interference parameters in K_{{S}}, K_L --> pi+ pi- pi0: Re(lambda) = 0.038+-0.008+-0.006 and Im(lambda) = -0.013+-0.005+-0.004; the correlation coeff. between Re(lambda) and Im(lambda) is 0.66 (statistical only).


pdgid: S012R8
text:
ADLER 1997B find the CP-conserving parameters Re(lambda) = 28+-7+-3E-3, Im(lambda) = -10+-8+-2E-3. They estimate B(K0S --> pi+ pi- pi0) from Re(lambda) and the K(L)0 decay parameters. See also ANGELOPOULOS 1998C.


pdgid: S012R8
text:
ZOU 1996 is from the the measured quantities |rho(+-0)| = 0.039+0.009-0.006+-0.005 and phi(rho) = (-9+-18)degrees.


pdgid: S012R8
text:
ADLER 1996E is from the measured quantities Re(lambda) = 0.036+-0.010+0.002-0.003 and Im(lambda) consistent with zero. Note that the quantity lambda is the same as rho(+-0) used in other footnotes.


pdgid: S012R8
text:
THOMSON 1994 calculates this branching ratio from their measurements |rho(+-0)| = 0.035+0.019-0.011+-0.004 and phi(rho) = (-59+-48)degrees where |rho(+-0)|e**iphi(rho) = A(K0S --> pi+ pi- pi0, I = 2)/A(K0L --> pi+ pi- pi0).


pdgid: S012R5
text:
BOBISUT 1974 not included in average because p(gamma) cut differs. Estimates direct emission contribution to be 0.5 or less, CL = 95%.


pdgid: S012R14
text:
BATLEY 2011 reports [G(K0S --> pi+ pi- e+ e-)/G(total)] / [B(K0L --> pi+ pi- pi0)] / [B(pi0 --> e+ e- gamma)] = 3.28+-0.06+-0.04E-2 which we multiply by our best values B(K0L --> pi+ pi- pi0) = 12.54+-0.05E-2, B(pi0 --> e+ e- gamma) = 1.174+-0.035E-2. Our first error is their experiment's error and our second error is the systematic error from using our best values. Also a limit on the absolute value of the interference between bremsstrahlung and E1 transition is given : <4E-7 at 90% C.L.


pdgid: S012R14
text:
Uses normalization BR(K_L --> pi+ pi- pi0)*BR(pi0 --> e+ e-) = 1.505+-0.047E-3 from our 2000 Edition.


pdgid: S012R7
text:
AMBROSINO 2008C reports 2.26+-0.12+-0.06E-6 from a measurement of [G(K0S --> gamma gamma)/G(total)] * [B(K0S --> pi0 pi0)] assuming B(K0S --> pi0 pi0) = 30.69+-0.05E-2.


pdgid: S012R7
text:
LAI 2003 reports [G(K0S --> gamma gamma)/G(total)] / [B(K0S --> pi0 pi0)] = 8.84+-0.18+-0.10E-6 which we multiply by our best value B(K0S --> pi0 pi0) = 30.69+-0.05E-2. Our first error is their experiment's error and our second error is the systematic error from using our best value.


pdgid: S012R7
text:
BARR 1995B quotes this as the combined BARR 1995B + BURKHARDT 1987 result after rescaling BURKHARDT 1987 to use same branching ratios and lifetimes as BARR 1995B.


pdgid: S012R13
text:
Reconstructed from K0 (Kbar0)(t) pi e nu distributions using PDG values of B(KL --> pi e nu) = 0.4053+-0.0015, meanlife(L) = 5.114+-0.021E-8 s and meanlife(S) = 0.8958+-0.0005E-10 s.


pdgid: S012R13
text:
Obtained by imposing Sigma_{{i}}() B(KS --> i) = 1, where i runs over all the four branching ratios pi+ pi-, pi0 pi0, pi e nu, and pi mu nu. Input value of B(KS --> pi+ pi-) / B(KS --> pi0 pi0) from AMBROSINO 2006C is used. To derive Gamma(KS --> pi+ mu nu) / Gamma(KS --> pi+ e nu), lepton universality is assumed, radiative corrections from ANDRE 2007 are used, and phase space integrals are taken from KTeV, ALEXOPOULOS 2004A. This branching fraction enters our fit via their Gamma(pi+- e-+ nu_e) / Gamma(pi+ pi-) branching ratio measurement.


pdgid: S012R18
text:
Value obtained by normalizing to the KLOE measurement B(K0S --> pi+ pi-) = (69.196+-0.051)%. Also comparison with the PDG 2018 based derived value leads to a lepton flavor universality test |V_{{us}} f_{{+}}(0)|**2(K0S --> pi mu nu)/|V_{{us}} f_{{+}}(0)|**2(K0S --> pi e nu) = 0.975+-0.044.


pdgid: S012R17
text:
BABUSCI 2023 measured Gamma(K0S --> pi e nu)/Gamma(K0S --> pi+ pi-) = 1.0421+-0.0066+-0.0075E-3 based on data collected from 2004 to 2005. About 50k signal events were reconstructed from the dataset corresponding to an integrated luminosity of 1.63 fb**-1. The quoted value is their combination of this result with the previous measurement of AMBROSINO 2006E. The correlation coefficient between the two measurements is 12%.


pdgid: S012R9
text:
BABUSCI 2013C uses 1.7 fb**-1 of data of phi --> K0L K0S decays with K(L)0 interaction in the calorimeter, collected from 2004 to 2005. No candidate events were found in the data with an expected background of 0.04+0.15-0.03 events. Upper limit is obtained by normalizing to decays.


pdgid: S012R9
text:
LAI 2005A value is obtained from their bound on |eta(000)| (not assuming CPT) and B(KL --> 3pi0) = 0.211+-0.003, and PDG 2004 values for K(L)0 and K(S)0 lifetimes. If CPT is assumed then B(KS --> 3pi0)(CPT) < 2.3E-7 at 90% CL


pdgid: S012R9
text:
ANGELOPOULOS 1998B is from Im(eta(000)) = -0.05+-0.12+-0.05, assuming Re(eta(000)) = Re(epsilon) = 1.635E-3 and using the value B(K0L --> pi0 pi0 pi0) = 0.2112+-0.0027.


pdgid: S012R11
text:
AAIJ 2020AE uses 8.6 fb**-1 of LHCb data from 2011 to 2012 and 2016 to 2018. The result utilizes the normalization mode branching fraction B(K0S --> pi+ pi-) = 69.20+-0.05E-2 from PDG 2018. Supersedes AAIJ 2017BQ.


pdgid: S012R11
text:
AAIJ 2017BQ uses 3.0 fb**-1 of p p collisions at sqrt(s) = 7 and 8 TeV. The result utilizes the normalization mode branching fraction B(K0S --> pi+ pi-) = 69.20+-0.05E-2 from PDG 2016. Supersedes AAIJ 2013G.


pdgid: S012R11
text:
AAIJ 2013G uses 1.0 fb**-1 of p p collisions at sqrt(s) = 7 TeV. They obtained B(K0S --> mu+ mu-) < 11E-9 at 95% C.L.


pdgid: S012R12
text:
AMBROSINO 2009A reports <0.09E-7 from a measurement of [G(K0S --> e+ e-)/G(total)] / [B(K0S --> pi+ pi-)] assuming B(K0S --> pi+ pi-) = 69.20+-0.05E-2.


pdgid: S012R10
text:
BATLEY 2003 extrapolate also to the full kinematical region using a constant form factor and a vector matrix element. The resulting branching ratio is 5.8+2.9-2.4E-9.


pdgid: S012R16
text:
Background estimate is 0.22+0.18-0.11 events. Branching ratio assumes a vector matrix element and unit form factor.


pdgid: S012AS
text:
ANASTASI 2018A result is a combination of the new measurement and AMBROSINO 2006E. The new ANASTASI 2018A measurement using data collected from 2004 -- 2005, which corresponds to an integrated luminosity of 1.63 fb**-1 is A(S)=-4.9+-5.7+-2.6E-3.


pdgid: S012ET+
text:
BARMIN 1985 find Re(eta(+-0)) = (0.05+-0.17) and Im(eta(+-0)) = (0.15+-0.33). Includes events of BALDO-CEOLIN 1975.


pdgid: S012E+
text:
The ADLER 1996D fit also yields Re(eta(+-0)) = 0.006+-0.013+-0.001 with a correlation +0.66 between real and imaginary parts. Their results correspond to |eta(+-0)|<0.037 with 90% CL.


pdgid: S012E+
text:
ZOU 1994 use theoretical constraint Re(eta(+-0)) = Re(epsilon) = 0.0016. Without this constraint they find Im(eta(+-0)) = 0.019+-0.061 and Re(eta(+-0)) = 0.019+-0.027.


pdgid: S012ET0
text:
BARMIN 1983 find Re(eta(000)) = (-0.08+-0.18) and Im(eta(000)) = (-0.05+-0.27). Assuming CPT invariance they obtain the limit quoted above.


pdgid: S012ET0
text:
GJESDAL 1974B uses K2pi, K_{{mu3}}, and K_{{e3}} decay results, unitarity, and CPT. Calculates |(eta(000))| = 0.26+-0.20. We convert to upper limit.


pdgid: S012E0
text:
LAI 2005A assumes Re(eta(000))=Re(epsilon)=1.66E-3. The equivalent limit is |eta(000)|{}(CPT)<0.025 at 90% CL Without assuming CPT invariance, they obtain Re(eta(000))=-0.002+-0.011+-0.015 and Im(eta(000))=-0.003+-0.013+-0.017 with a statistical correlation coefficient of 0.77 and an overall correlation coefficient of 0.57 between imaginary and real part. The equivalent limit is |eta(000)|<0.045 at 90% CL


pdgid: S012E0
text:
ANGELOPOULOS 1998B assumes Re(eta(000)) = Re(epsilon) = 1.635E-3. Without assuming CPT invariance, they obtain Re(eta(000)) = 0.18+-0.14+-0.06 and Im(eta(000)) = 0.15+-0.20+-0.03.


pdgid: S013D
text:
The two ABOUZAID 2011 values use the same data. The first enters the ''assuming CPT'' fit and the second enters the ''not assuming CPT'' fit.


pdgid: S013D
text:
ABOUZAID 2011 fit has Delta(m) and tau_{{s}} free but constrains phi_{{epsilon}} to the Superweak value, i.e. assumes CPT. See ''K(S)0 Mean Life'' section for correlation information.


pdgid: S013D
text:
Fits Delta(m) and phi(+-) simultaneously. GIBBONS 1993C systematic error is from B. Winstein via private communication. 20 -- 160 GeV K beams.


pdgid: S013D
text:
GIBBONS 1993 value assume phi(+-) = phi(00) = phi(SW) = (43.7+-0.2)degree, i.e. assumes CPT. 20 -- 160 GeV K beams.


pdgid: S013D
text:
These two experiments have a common systematic error due to the uncertainty in the momentum scale, as pointed out in WAHL 1989.


pdgid: S013D
text:
ALAVI-HARATI 2003 fit Delta(m) and meanlife(K(S)0) simultaneously. phi(+-) is constrained to the Superweak value, i.e. CPT is assumed. See ``K(S)0 Mean Life'' section for correlation information. Superseded by ABOUZAID 2011.


pdgid: S013D
text:
ALAVI-HARATI 2003 fit Delta(m), phi(+-), and tau(K_{{S}}) simultaneously. See phi(+-) in the ``K_{{L}} CP violation'' section for correlation information. Superseded by ABOUZAID 2011.


pdgid: S013D
text:
Uses Kbar_{{e3}}()0 and K_{{e3}}()0 strangeness tagging at production and decay. Assumes CPT conservation on DeltaS=-DeltaQ transitions.


pdgid: S013D
text:
ADLER 1996C is the result of a fit which includes nearly the same data as entered into the ``OUR FIT'' value above.


pdgid: S013D
text:
ARONSON 1970 and CARNEGIE 1971 use K(S)0 mean life = 0.862+-0.006E-10 s. We have not attempted to adjust these values for the subsequent change in the K(S)0 mean life or in eta(+-).


pdgid: S013T
text:
AMBROSINO 2006 uses phi --> K_L K_S with K_{{L}} tagged by K_S --> pi+ pi-. The four major K_{{L}} BR's are measured, the small remainder (pi+ pi-,pi0 pi0,gamma gamma) is taken from PDG 2004. This KLOE K_{{L}} lifetime is obtained by imposing Sum(i) B(i) = 1. The correlation matrix among the four measured K_{{L}} BR's and this K_L lifetime is     These correlations are taken into account in our fit. The average of this KLOE mean life measurement and the independent KLOE measurement in AMBROSINO 2005C is 5.084+-0.023E-8 s.


pdgid: S013R57
text:
There are correlations between these five KLOE measurements: B(K_L --> pi e nu), B(K_L --> pi mu nu), B(K_L --> 3pi0), B(K_L --> pi+ pi- pi0), and meanlife(K_{{L}}) measured in AMBROSINO 2006. See the footnote for the meanlife(K_{{L}}) measurement for the correlation matrix.


pdgid: S013R57
text:
ALEXOPOULOS 2004 constrains Sum(i) B(i) = 0.9993 for the six major K_{{L}} branching fractions. The correlations among these branching fractions are taken into account in our fit. The correlation matrix is


pdgid: S013R58
text:
For correlations with other ALEXOPOULOS 2004 measurements, see the footnote with their B(K_L --> pi e nu) measurement.


pdgid: S013R62
text:
E(ee)*** is the energy of the e+ e- pair in the kaon rest frame. ABOUZAID 2007C reports [G(K0L --> pi+- e-+ nu e+ e-)/G(K0L --> pi+ pi- pi0)] / [B(pi0 --> e+ e- gamma)] = 8.54+-0.07+-0.13E-3 which we multiply by our best value B(pi0 --> e+ e- gamma) = 1.174+-0.035E-2. Our first error is their experiment's error and our second error is the systematic error from using our best value.


pdgid: S013R45
text:
We exclude these B(K_L --> 3pi0) measurements from our fit because the authors have constrained K_{{L}} branching fractions to sum to one. It enters our fit via the other measurements from the experiment and their correlations, along with our constraint that the fitted branching fractions sum to one.


pdgid: S013R55
text:
The LAI 2007 central value of 4.835E-3 has been reduced by 0.19% to 4.826E-3 to subtract the contribution from the direct emission mode KL --> pi+ pi- gamma(DE).


pdgid: S013R59
text:
Fully inclusive. Taking B(KL --> pi mu nu) from KLOE, AMBROSINO 2006, B(KL --> pi+ pi- + pi+ pi- gamma(DE)) = 1.963+-0.012+-0.017E-3 is obtained.


pdgid: S013R20
text:
Old experiments excluded from fit. See subsection on eta(+-) in section on ``PARAMETERS FOR K0L --> 2pi DECAY'' below for average eta(+-) of these experiments and for note on discrepancy.


pdgid: S013R9
text:
From same data as G(K0L --> pi+ pi-)/G(K0L --> pi+ pi- pi0) MESSNER 1973, but with different normalization.


pdgid: S013R25
text:
Also measured cut E(gamma)***>10 MeV, theta(e gamma)***>0degree 14221 evts: Gamma(pi+- e-+ nu_e gamma) / Gamma(pi+- e-+ nu_e) = (4.942+-0.062)%.


pdgid: S013R49
text:
Also measured cut E(gamma)***>10 MeV, 1385 evts: Gamma(pi+- mu-+ nu_mu gamma) / Gamma(pi+- mu-+ nu_mu) = (0.530+-0.014+-0.012)%.


pdgid: S013R12
text:
CARROLL 1980B quotes B(pi+ pi- gamma) using normalization B(pi+ pi- pi0) = 0.1239. We divide by this value to obtain their measured Gamma(pi+ pi- gamma) / Gamma(pi+ pi- pi0).


pdgid: S013R26
text:
ABOUZAID 2008 reports 1.29+-0.03+-0.05E-6 from a measurement of [G(K0L --> pi0 2gamma)/G(total)] / [B(K0L --> pi0 pi0)] assuming B(K0L --> pi0 pi0) = 8.69+-0.04E-4, which we rescale to our best value B(K0L --> pi0 pi0) = 8.64+-0.06E-4. Our first error is their experiment's error and our second error is the systematic error from using our best value.


pdgid: S013R26
text:
LAI 2002B reports [G(K0L --> pi0 2gamma)/G(total)] / [B(K0L --> pi0 pi0)] = 1.467+-0.032+-0.032E-3 which we multiply by our best value B(K0L --> pi0 pi0) = 8.64+-0.06E-4. Our first error is their experiment's error and our second error is the systematic error from using our best value. They also find that B(pi0 2gamma, mass(gamma gamma)<110 MeV) < 0.6E-8(90% CL).


pdgid: S013R26
text:
ALAVI-HARATI 1999B finds that Gamma(pi0 2 gamma, mass(gamma gamma)<240 MeV)) / Gamma(pi0 2 gamma) = (17.3+-1.3+-1.5)%. Superseded by ABOUZAID 2008.


pdgid: S013R51
text:
ABOUZAID 2007D includes 1997 (ALAVI-HARATI 2001E) and 1999 data. It measures the ratio of B(KL --> pi0 gamma e+ e-) / B(KL --> pi0 pi_D()0), where pi_{{D}}()0 is the Dalitz decaying pi0, and uses PDG 2006 values B(KL --> pi0 pi0) = 8.69+-0.04E-4, and B(pi_D()0 --> e+ e- gamma) = 1.198+-0.032E-2. Supersedes ALAVI-HARATI 2001E result.


pdgid: S013R8
text:
This value uses (eta(00)/eta(+-))**2 = 1.05+-0.14. In general, G(K0L --> 2gamma)/G(total) = [4.32+-0.55E-4]*[(eta(00)/eta(+-))**2].


pdgid: S013R8
text:
Assumes regeneration amplitude in copper at 2 GeV is 22 mb. To evaluate for a given regeneration amplitude and error, multiply by (regeneration amplitude/22mb)**2.


pdgid: S013R44
text:
TUNG 2011 reports the result assuming parity violating interaction and using 2005 data (Run-II and III). Assuming parity conserving or phase space interaction, the 90% upper limits obtained are 7.5E-8 and 8.6E-8, respectively.


pdgid: S013R28
text:
For FANTI 1999B, the +-0.4 systematic error includes for uncertainties in the calculation, primarily uncertainties in the pi0 --> e+ e- gamma and K0L --> pi0 pi0 branching ratios, evaluated using our 1999 Web edition values.


pdgid: S013R61
text:
ABOUZAID 2007B reports [G(K0L --> e+ e- gamma)/G(K0L --> 3pi0)] / [[3.0G(pi0 --> 2gamma)/G(total) * G(pi0 --> e+ e- gamma)/G(total)]] = 1.3302+-0.0046+-0.0103E-3 which we multiply by our best value [3.0G(pi0 --> 2gamma)/G(total) * ]G(pi0 --> e+ e- gamma)/G(total)] = 0.0348+-0.0010. Our first error is their experiment's error and our second error is the systematic error from using our best value.


pdgid: S013R22
text:
AKAGI 1995 gives this number multiplied by the PDG 1992 average for Gamma(K0L --> pi+ pi-)/Gamma(total).


pdgid: S013R22
text:
AKAGI 1991B give this number multiplied by the 1990 PDG average for Gamma(K0L --> pi+ pi-)/Gamma(total).


pdgid: S013R22
text:
HEINSON 1991 give Gamma(K0L --> mu mu)/Gamma(total). We divide out the Gamma(K0L --> pi+ pi-)/Gamma(total) PDG average which they used.


pdgid: S013R31
text:
LAI 2003C second error is 0.15(syst)+-0.10(norm) combined in quadrature. The normalization uses BR(K_L --> pi+ pi- pi0) * BR(pi0 --> e+ e-) = 1.505+-0.047E-3 from our 2000 Edition.


pdgid: S013R65
text:
ABOUZAID 2011A also reports B(K0L --> pi0 pi0 X0 --> pi0 pi0 mu+ mu-) < 1.0E-10 at 90% C.L., where the X()0 is a possible new neutral boson that was reported by PARK 2005 with a mass of 214.3+-0.5 MeV/c**2.


pdgid: S013R36
text:
LAI 2005B uses 1998 and 1999 data. Data are normalized to the observed events of KL --> pi+ pi- pi0 (pi0 into Dalitz pair) and PDG 2004 values are used for B(KL --> pi+ pi- pi0) and B(pi0 --> e+ e- gamma). The systematic error includes a normalization error of +-0.10.


pdgid: S013R34
text:
LAI 2002B uses the absence of a signal in K0L --> pi0 gamma gamma with m(gamma gamma)<m(pi0) and their a(V) value to predict this value.


pdgid: S013R40
text:
AHN 2021 result is based on data collected in 2016, 2017 and 2018, which corresponds to 3.05E19 protons on target. A single event sensitivity of 7.20+-0.05+-0.66E-10 was achieved with 3 candidate events observed and total 1.22+-0.26 background events.


pdgid: S013R40
text:
AHN 2019 result is based on data collected in 2015, which corresponds to 2.2E19 protons on target. A single event sensitivity of 1.30+-0.01+-0.14E-9 was achieved with no candidate events observed. An upper limit of < 2.4E-9 at the 90% C.L. for the K_L --> pi0 X0 decay was also set, where X0 is an invisible particle with a mass of 135 MeV/c**2.


pdgid: S013R40
text:
AHN 2017 result is based on the first 100 hours of physics running in 2013. One candidate event was observed with an expected background of 0.34+-0.16 events. An upper limit of <3.7E-8 at the 90% C.L. for the K_L --> pi0 X0 decay was also set, where X0 is an invisible particle with a mass of 135 MeV/c**2.


pdgid: S013R63
text:
Using 2005 Run-I data. OGATA 2011 also sets a limit on the K0L --> pi0 pi0 X --> invisible particles process: the limit on the branching fraction varied from 7.0E-7 to 4.0E-5 for the mass of X ranging from 50 to 200 MeV/c**2.


pdgid: S013R63
text:
Observed 1 event with expected background of 0.43+-0.35 events. NIX 2007 also measured B(KL --> pi0 pi0 P) < 1.2E-6 at 90% CL, where P is the pseudoscalar particle and mass(P) < 100 MeV.


pdgid: S013R00
text:
SHIMIZU 2020 uses data collected from 2016 to 2018 at the J-PARC KOTO experiment. The single event sensitivity is 7.1+-0.3+-1.6E-8. No candidate event was observed.


pdgid: S013GT0
text:
Quadratic dependence required by some experiments. (See sections on ``QUADRATIC COEFFICIENT h'' and ``QUADRATIC COEFFICIENT k'' below.) Correlations prevent us from averaging results of fits not including g, h, and k terms.


pdgid: S013GT0
text:
BISI 1974 value comes from quadratic fit with quad. term consistent with zero. g error is thus larger than if linear fit were used.


pdgid: S013GT0
text:
BUCHANAN 1970 result revised by BUCHANAN 1975 to include radiative correlations and to use more reliable K(L)0 momentum spectrum of second experiment (had same beam).


pdgid: S013HT0
text:
Quadratic coefficients h and k required by some experiments. (See section on ``QUADRATIC COEFFICIENT k'' below.) Correlations prevent us from averaging results of fits not including g, h, and k terms.


pdgid: S013HTZ
text:
Result obtained using CI3pI model of CABIBBO 2005 to include pi pi rescattering effects. The systematic error includes an external error of 1.06E-3 from the parametrization input of (a(0)-a(2)) mass(pi+) = 0.268+-0.017 from BATLEY 2006B.


pdgid: S013HTZ
text:
SOMALWAR 1992 chose mass(pi+) as normalization to make it compatible with the Particle Data Group K0L --> pi+ pi- pi0 definitions.


pdgid: S013L0
text:
BIRULEV 1981 gives dlambda(0)/dlambda(+) = -1.5, giving an unreasonably narrow error ellipse which dominates all other results. We use dlambda(0)/dlambda(+) = 0.


pdgid: S013LPE
text:
We use AMBROSINO 2006D result in the fit not assuming mu -e universality. This result enters the fit assuming mu -e universality via AMBROSINO 2007C measurement of lambda'(+) in K_{{mu3}}() decays. AMBROSINO 2006D gives a correlation -0.95 between their lambda'(+) and lambda''(+).


pdgid: S013LQE
text:
We use AMBROSINO 2006D result in the fit not assuming mu -e universality. This result enters the fit assuming mu -e universality via AMBROSINO 2007C measurement of lambda''(+) in K_{{mu3}}() decays. AMBROSINO 2006D gives a correlation -0.95 between their lambda'(+) and lambda''(+).


pdgid: S013MSM
text:
LAI 2007A gives a correlation -0.47 between their M(mu,S) and M(mu,V) measurements, not assuming mu-e universality.


pdgid: S013MSM
text:
ALEXOPOULOS 2004A gives a correlation -0.46 between their M(mu,S) and M(mu,V) and measurements, not assuming mu-e universality.


pdgid: S013MSM
text:
ALEXOPOULOS 2004A gives a correlation -0.40 between their M(mu,S) and M(mu,V) and measurements, assuming mu-e universality.


pdgid: S013LAM
text:
Obtained from a sample of 1.9 M K_{{e3}} and 1.5 M K_{{mu3}}. The correlation between Lambda_{{+}}() and ln(C) is -0.269.


pdgid: S013LAM
text:
AMBROSINO 2007C results include 2M K_{{e3}} events from AMBROSINO 2006D. The correlation between Lambda_{{+}}() and ln(C) is -0.26.


pdgid: S013LCM
text:
AMBROSINO 2007C results include 2M K_{{e3}} events from AMBROSINO 2006D. We convert (Lambda_{{+}}(), Lambda_{{0}}()) to (Lambda_{{+}}(), ln(C)) parametrization using ln(C) = (Lambda_{{0}}(). 11.713 + 0.0398)+-0.0041, where the error is due to theory parametrization of the form factor. The correlation between Lambda_{{+}}() and ln(C) is -0.26.


pdgid: S013HA1
text:
Q**2= 2 GeV**2, t(0) = 0.49 (mass(K) - mass(pi))**2. Correlation between a(1) and a(2): rho(12) = -0.064.


pdgid: S013ALP
text:
ABOUZAID 2007B measures C. alpha(K^*) = -0.517+-0.030+-0.022. We assume C = 2.5, as in all other measurements.


pdgid: S013A12
text:
ALAVI-HARATI 2001B fit gives chi^2/DOF = 38.8/27. Linear and quadratic fits give chi^2/DOF = 43.2/27 and 37.6/26 respectively.


pdgid: S013L3
text:
MAKOFF 1993 sign has been changed to negative to agree with the sign convention used in BATLEY 2004.


pdgid: S013A1
text:
PACIOTTI 1969 is a reanalysis of DORFAN 1967 and is corrected for mu+ mu- range difference in MCCARTHY 1972.


pdgid: S013E00
text:
CHOLLET 1970 gives |eta(00)| = (1.23+-0.24)*(regeneration amplitude, 2 GeV/c Cu)/10000mb. WOLFF 1971 gives |eta(00)| = (1.13+-0.12)*(regeneration amplitude, 2 GeV/c Cu)/10000mb. We compute both |eta(00)| values for (regeneration amplitude, 2 GeV/c Cu) = 24+-2mb. This regeneration amplitude results from averaging over FAISSNER 1969, extrapolated using optical-model calculations of Bohm et al., Physics Letters 27B 594 (1968) and the data of BALATS 1971. (From H. Faissner, private communication).


pdgid: S013E+-
text:
Value obtained from the NA48 measurements of Gamma(KL --> pi+ pi-)/Gamma(KL --> pi e nu_e) and meanlife(K(S)0) and KLOE measurements of B(KS --> pi+ pi-) and meanlife(K(L)0). Gamma(KL --> pi+ pi-) is defined to include the inner bremsstrahlung component Gamma(KL --> pi+ pi- gamma (IB)) but exclude the direct emission component B(KS --> pi+ pi- (DE)). Their |eta_{{+-}}()| value is not directly used in our fit, but enters the fit via their branching ratio and lifetime measurements.


pdgid: S013E+-
text:
AMBROSINO 2006F uses KLOE branching ratios and meanlife(L) together with meanlife(S) from PDG 2004. Their |eta(+-)| value is not directly used in our fit, but enters the fit via their branching ratio and lifetime measurements.


pdgid: S013E+-
text:
ALEXOPOULOS 2004 |eta(+-)| uses their KL --> pi pi branching fractions, tau_{{S}} = 0.8963+-0.0005E-10 s from the average of KTeV and NA48 tau_{{S}} measurements, and assumes that Gamma(KS --> pi lepton nu_lepton) = Gamma(KL --> pi lepton nu_lepton) giving B(KS --> pi lepton nu_lepton) = 0.118%. Their eta(+-) is not directly used in our fit, but enters our fit via their branching ratio measurements.


pdgid: S013E+-
text:
APOSTOLAKIS 1999C report (2.264+-0.023+-0.026+9.1[tau(s)-0.8934])*10**-3. We evaluate for our 2006 best value tau(s)= 0.8958+-0.0005E-10 s.


pdgid: S013E+-
text:
ADLER 1995B report (2.312+-0.043+-0.030 -1[Deltam-0.5274] +9.1[tau_{{s}}-0.8926])*10**-3. We evaluate for our 1996 best values Deltam = 0.5304+-0.0014E-10 hbars**-1 and tau_{{s}} = 0.8927+-0.0009E-10 s. Superseded by APOSTOLAKIS 1999C.


pdgid: S013ER
text:
This is the combined results from BARR 1993D and BURKHARDT 1988, taking into account a common systematic uncertainty of 0.0014.


pdgid: S013EPS
text:
The two ABOUZAID 2011 values use the same data. The fits are performed with and without CPT invariance requirement.


pdgid: S013EPS
text:
These values are derived from |eta(00)/eta(+-)| measurements. They enter the average in this section but enter the fit via the |eta(00)/eta(+-)| only.


pdgid: S013EPS
text:
This is the combined results from BARR 1993D and BURKHARDT 1988, taking into account their common systematic uncertainty.


pdgid: S013EPS
text:
We use ABOUZAID 2011 Re(epsilon^'/epsilon) value with CPT assumption in our fits for |eta(+-)|, |eta(00)|, and Re(epsilon^'/epsilon).


pdgid: S013F+-
text:
These experiments measure phi(+-)-phi_{{f}} and calculate the regeneration phase from the power law momentum dependence of the regeneration amplitude using analyticity and dispersion relations. SCHWINGENHEUER 1995 [GIBBONS 1993] includes a systematic error of 0.35degree [0.5degree] for uncertainties in their modeling of the regeneration amplitude.


pdgid: S013F+-
text:
This is actually reported in SCHWINGENHEUER 1995, footnote 8. GIBBONS 1993 reports phi(+-) (42.2+-1.4)degrees. They measure phi(+)-phi(f) and calculate the regeneration phase phi(f) from the power law momentum dependence of the regeneration amplitude using analyticity. An error of 0.6degrees is included for possible uncertainties in the regeneration phase.


pdgid: S013F+-
text:
ALAVI-HARATI 2003 phi(+-) is correlated with their Delta(m) = mass(K(L)0)-mass(K(S)0) and tau(K_{{S}}) measurements in the K(L)0 and K(S)0 sections respectively. The correlation coefficients are rho(phi(+-),Delta(m))=+0.955, rho(phi(+-),tau(S))=-0.871, and rho(tau(S),Delta(m))=-0.840. CPT is not assumed. Uses scintillator Pb regenerator. Superseded by ABOUZAID 2011.


pdgid: S013F+-
text:
ADLER 1996C is the result of a fit which includes nearly the same data as entered into the ``OUR FIT'' value in the 1996 edition of this Review (Physical Review D54 1 (1996)).


pdgid: S013F+-
text:
ADLER 1992B quote separately two systematic errors: +-0.4 from their experiment and +-1.0 degrees due to the uncertainty in the value of Delta(m).


pdgid: S013FOO
text:
ADLER 1996B identified initial neutral kaon individually as being a K0 or a Kbar0. The systematic uncertainty is +-1.5degree combined in quadrature with +-0.8degree due to Delta(m).


pdgid: S013EPH
text:
SUPERWEAK 2016 is a fake measurement used to impose the CPT or Superweak constraint phi(+-)= phi(SW) = tan**-1[2 Delta(m)/hbar ( tau_{{S}} tau_{{L}}/tau_{{L}} - tau_{{S}} )]. This ``measurement'' is linearized using values near the PDG 2004 edition values of Delta(m), tau_{{S}} and tau_{{L}}, and then adjusted to our current values as described in the following ``measurement''.


pdgid: S013EPH
text:
ABOUZAID 2011 uses the full KTeV dataset collected in 1996, 1997, and 1999. See Im(epsilon^'/epsilon) section for correlation information.


pdgid: S013EPI
text:
ABOUZAID 2011 uses the full KTeV dataset collected in 1996, 1997, and 1999. The fit has Delta(m), tau_{{s}}, phi_{{epsilon}}, Re(epsilon^'/epsilon), and Im(epsilon^'/epsilon) as free parameters. The reported value of Im(epsilon^'/epsilon) = -17.20+-20.20E-4 rad. The correlation coefficients are rho(phi_{{epsilon}}, Delta(m)) = 0.828, rho(phi_{{epsilon}}, tau_{{s}}) = -0.765, rho(Delta(m), tau_{{s}}) = -0.858, rho(Im(epsilon^'/epsilon), phi_{{epsilon}}) = -0.041, rho(Im(epsilon^'/epsilon), Delta(m)) = 0.026, rho(Im(epsilon^'/epsilon), tau_{{s}}) = -0.010.


pdgid: S013EPG
text:
RAMBERG 1993B limit on |epsilon'(+-gamma)|/epsilon assumes than any difference between eta(+-) and eta(+-gamma) is due to direct CP violation.


pdgid: S013IXI
text:
SANDWEISS 1973 value corrected from value quoted in their paper due to new value of Re(xi). See footnote 4 of SCHMIDT 1979.


pdgid: S013DF
text:
SUPERWEAK 2016 is a fake experiment to constrain phi(00)-phi(+-) to a small value as described in the note ``CP violation in K_{{L}} decays.''


pdgid: S013DF
text:
This SCHWINGENHEUER 1995 values is the combined result of SCHWINGENHEUER 1995 and GIBBONS 1993, accounting for correlated systematic errors.


pdgid: S013DF
text:
ALAVI-HARATI 2003 fit Re(epsilon'/epsilon), Im(epsilon'/epsilon), Delta(m), tau(S), and phi(+-) simultaneously, not assuming CPT. Phase difference is obtained from phi(00)-phi(+-)~~-3Im(epsilon'/epsilon) for small |epsilon'/epsilon|. Superseded by ABOUZAID 2011.


pdgid: S013DF
text:
GIBBONS 1993 give detailed dependence of systematic error on lifetime (see the section on the K(S)0 mean life) and mass difference (see the section on mass(K(L)0)-mass(K(S)0)).


pdgid: S013DF
text:
CAROSI 1990 is excluded from the fit because it it is not independent of phi(+-) and phi(00) values.


pdgid: S013DFS
text:
ALAVI-HARATI 2003 fit is the same as their phi(+-), tau(K_{{S}}), Delta(m) fit, except that the parameter phi(+-)-phi(SW) is used in place of phi.


pdgid: S013IMX
text:
Footnote 10 of HILL 1967 should read +0.58, not -0.58 (private communication) CHO 1970 is analysis of unambiguous events in new data and HILL 1967.


pdgid: M174TMP
text:
Extracted employing pi K partial wave analysis from ESTABROOKS 1978 and ASTON 1988, Roy-Steiner equations and once subtracted forward dispersion relations.


pdgid: M174TMP
text:
Reanalysis of ESTABROOKS 1978 and ASTON 1988 satisfying Forward Dispersion Relations and using sequences of Pade approximants.


pdgid: M174TMP
text:
Supersedes BUGG 2006. Combined analysis of ASTON 1988, ABLIKIM 2006C, AITALA 2006, and LINK 2009 using an s-dependent width with couplings to K pi and K eta^', and the Adler zero near thresholds.


pdgid: M174TMP
text:
Reanalysis of ASTON 1988, AITALA 2002, and ABLIKIM 2006C using for the kappa an s-dependent width with an Adler zero near threshold.


pdgid: M174TMP
text:
Using Roy-Steiner equations (ROY 1971) consistent with unitarity, analyticity and crossing symmetry constraints.


pdgid: M174TMP
text:
From UChPT fitted to MERCER 1971, BINGHAM 1972 and ESTABROOKS 1978. Amplitude shown to be consistent with data of ABLIKIM 2006C.


pdgid: M174TMP
text:
Reanalysis of ASTON 1988 using interfering Breit-Wigner amplitudes. Extracted from Breit-Wigner parameters.


pdgid: M174M
text:
Assuming a Gaussian source to the measured two-particle correlation function. Systematic error dominates. For 0 -- 100% multiplicity class.


pdgid: M174M
text:
The Breit-Wigner parameters from a fit with seven intermediate resonances. The S-matrix pole position is (764+-63+71-54) - i (306+-149+143-85) MeV.


pdgid: M174M
text:
A fit in the K_{{0}}^*(700) + K^*(892) + K^*(1410) model with mass and width of the K_{{0}}^*(700) from ABLIKIM 2006C well describes the left slope of the K0S pi- invariant mass spectrum in tau- --> K0S pi- nu_tau decay studied by EPIFANOV 2007. Averaged value from different parameterizations.


pdgid: M174M
text:
Not seen by KOPP 2001 using 7070 events of D0 --> K- pi+ pi0. LINK 2002E and LINK 2005I show clear evidence for a constant non-resonant scalar amplitude rather than K_{{0}}^*(700) in their high statistics analysis of D+ --> K- pi+ mu+ nu_mu.


pdgid: M174M
text:
AUBERT 2007T does not find evidence for the charged K_{{0}}^*(700) using 11k events of D0 --> K- K+ pi0.


pdgid: M174W
text:
Statistical error only. A fit to the Dalitz plot including the K_{{0}}^*(700)+-, K^*(892)+-, and phi resonances modeled as Breit-Wigners. A significant S-wave can be also modeled as a non-resonant contribution.


pdgid: M018M1
text:
From a Dalitz plot analysis in an isobar model with charged and neutral K^*(892) masses and widths floating.


pdgid: M018MCT
text:
From the pole position of the K pi vector form factor using EPIFANOV 2007 and constraints from K_{{l3}} decays in ANTONELLI 2010.


pdgid: M018MCT
text:
From the pole position of the K pi vector form factor in the complex s-plane and using EPIFANOV 2007 data.


pdgid: M018MCT
text:
Calculated by us from the shift by 4.7+-0.9 MeV (statistical uncertainty only) reported in BONVICINI 2002 with respect to the world average value from PDG 2000.


pdgid: M028M3
text:
Well described in the chiral unitary approach of GENG 2007 with two poles at 1195 and 1284 MeV and widths of 246 and 146 MeV, respectively.


pdgid: M028R2
text:
Assuming that decays are saturated by the K rho, K^*_0(1430) pi, K^*(892) pi, K omega decay modes and neglecting interference between them. The values B(omega --> pi+ pi-) = (1.53+0.11-0.13)% and B(K^*_0(1430) --> K pi) = (93+-10)% are used. Systematic uncertainties not estimated.


pdgid: M019M
text:
Using both eta --> gamma gamma and eta --> pi+ pi- pi0. From a likelihood scan in the presence of several interfering scalar-meson resonances with fixed width Gamma(K_{{0}}^*(1430)) = 210 MeV.


pdgid: M019M
text:
S-Matrix pole. Supersedes BUGG 2006. Combined analysis of ASTON 1988, ABLIKIM 2006C, AITALA 2006, and LINK 2009 using an s-dependent width with couplings to K pi and K eta^', and the Adler zero near thresholds.


pdgid: M019M
text:
S-matrix pole. Reanalysis of ASTON 1988, AITALA 2002, and ABLIKIM 2006C including the kappa with an s-dependent width and an Adler zero near threshold.


pdgid: M019M
text:
Uses a model for the background, without this background they get a mass 1340 MeV, where the phase shift passes 90degree.


pdgid: M019W
text:
Using both eta --> gamma gamma and eta --> pi+ pi- pi0. From a likelihood scan in the presence of several interfering scalar-meson resonances with fixed mass M(K_{{0}}^*(1430)) = 1435 MeV.


pdgid: M019R01
text:
Using both eta --> gamma gamma and eta --> pi+ pi- pi0. From a Dalitz analysis in the presence of several interfering scalar-meson resonances.


pdgid: M022R10
text:
ASTON 1988B quote <0.0092 at CL=95%. We convert this to a central value and 1 sigma error in order to be able to use it in our constrained fit.


pdgid: M099M
text:
One of two K_{{1}} states reported by AAIJ 2021E. From an amplitude analysis of the decay  B+ --> J/psi phi K+ with a significance of 4.5 sigma.


pdgid: M095R02
text:
CHEN 2020A quotes the ratio Gamma(K^*(1680)- --> K- eta)/Gamma(K^*(1680)- --> K- pi0) =0.11+-0.02+0.06-0.04+-0.04(B(PDG)) where the last uncertainty comes from B(eta --> gamma gamma) = (39.41+-0.20)%. We divide it by 3 taking into account that Gamma(K^*(1680)- --> K- pi0)/Gamma(K^*(1680)- --> ( K pi )**-) = 1/3.


pdgid: M095R01
text:
From an amplitude analysis of the decay D0 --> K- pi+ eta with a significance of 16 sigma. Not independent of the CHEN 2020A measurement of G(K^*(1680) --> K eta)/G(K^*(1680) --> K pi).


pdgid: M088M
text:
A subsequent amplitude analysis of B+ --> J/psi phi K+ by AAIJ 2021E did not confirm this measurement.


pdgid: M104M
text:
A reanalysis by AAIJ 2021E using a larger data sample did not confirm this measurement, the new result having a significance of only 1.6 sigma.


pdgid: S031M
text:
PERUZZI 1977 and SCHINDLER 1981 errors do not include the 0.13% uncertainty in the absolute SPEAR energy calibration. TRILLING 1981 uses the high precision J/psi(1S) and psi(2S) measurements of ZHOLENTZ 1980 to determine this uncertainty and combines the PERUZZI 1977 and SCHINDLER 1981 results to obtain the value quoted.


pdgid: S031B93
text:
ABBIENDI 1999K uses the excess of right-sign over wrong-sign leptons opposite reconstructed D^*(2010)+ --> D0 pi+ decays in Z0 --> c cbar.


pdgid: S031R6
text:
ALBRECHT 1992F uses the excess of right-sign over wrong-sign leptons in a sample of events tagged by fully reconstructed D^*(2010)+ --> D0 pi+ decays.


pdgid: S031C3
text:
ABREU 2000O uses slow pions opposite fully reconstructed D^*(2010)+, D+, or D0 mesons as a signal of D^*(2010)- production.


pdgid: S031R5
text:
Using the D+ and D0 lifetimes, ASNER 2010 finds that the ratio of the D+ and D0 semileptonic widths is 0.985+-0.015+-0.024.


pdgid: S031R5
text:
Using the D+ and D0 lifetimes, ADAM 2006A finds that the ratio of the D+ and D0 inclusive e+ widths is 0.985+-0.028+-0.015, consistent with the isospin-invariance prediction of 1.


pdgid: S031R02
text:
ABLIKIM 2008L finds the ratio of D+ --> mu+ X and D0 --> mu+ X branching fractions to be 2.59+-0.70+-0.25, in accord with the ratio of D+ and D0 lifetimes, 2.54+-0.02.


pdgid: S031R3
text:
ABLIKIM 2006U reports B(D0 --> K0 X or Kbar0 X) = 60.5+-5.5+-3.3E-2 which we take as twice the branching fraction for D+ --> K0S X.


pdgid: S031R3
text:
COFFMAN 1991 reports B(D+ --> K0 X or Kbar0 X) = 61.2+-6.5+-4.3E-2 which we take as twice the branching fraction for D+ --> K0S X.


pdgid: S031R8
text:
ABLIKIM 2014F obtain |V(cd)|.f(D+) = (45.75+-1.20+-0.39) MeV, and using |V(cd)| = 0.22520+-0.00065 gets f(D+) = (203.2+-5.3+-1.8) MeV.


pdgid: S031R8
text:
EISENSTEIN 2008, using the D+ lifetime and assuming |V_(cd)| = |V_(us)|, gets f(D+) = (205.8+-8.5+-2.5) MeV from this measurement.


pdgid: S031R8
text:
ABLIKIM 2005D finds a background-subtracted 2.67+-1.74 D+ --> mu+ nu_mu events, and from this obtains f(D+) = 371+129-119+-25~MeV.


pdgid: S031R8
text:
BONVICINI 2004A finds eight events with an estimated background of one, and from the branching fraction obtains f(D+) = 202+-41+-17 MeV.


pdgid: S031R93
text:
The ABLIKIM 2005A result together with the D0 --> K- e+ nu_e branching fraction of ABLIKIM 2004C and Particle Data Group lifetimes gives Gamma(D0 --> K- e+ nu_e) / Gamma(D+ --> Kbar0 e+ nu_e) = 1.08+-0.22+-0.07; isospin invariance predicts the ratio is 1.0.


pdgid: S031R93
text:
ABLIKIM 2015AF report Gamma(D+ --> K_L e+ nu_e)/Gamma(total) = (4.481+-0.027+-0.103)%. See also the form-factor parameters near the end of this D+ Listing.


pdgid: S031R93
text:
DOBBS 2008 establishes |V(c d)/V(c s).f(+)**pi(0)/f(+)**K(0)| = 0.188+-0.008+-0.002 from the D+ and D0 decays to Kbar e+ nu_e and pi e+ nu_e. It also finds Gamma(D0 --> K- e+ nu_e) / Gamma(D+ --> Kbar0 e+ nu_e) = 1.06+-0.02+-0.03; isospin invariance predicts the ratio is 1.0.


pdgid: S031Q21
text:
Amplitude analysis with two components. ABLIKIM 2024CS reports a branching fraction B(D+ --> (K0S pi0)_S-wave e+ nu_e) = 5.41+-0.35+-0.37E-4.


pdgid: S031Q22
text:
Amplitude analysis with two components. ABLIKIM 2024CS reports a branching fraction B(D+ --> Kbar^*(892)0 e+ nu_e) = 4.97+-0.11+-0.12E-2.


pdgid: S031C15
text:
HUANG 2005B finds Gamma(D0 --> K^*()- e+ nu_e) / Gamma(D+ --> Kbar^*()0 e+ nu_e) = 0.98+-0.08+-0.04; isospin invariance predicts the ratio is 1.0.


pdgid: S031B51
text:
This LINK 2002J result includes the effects of an interference of a small S-wave K- pi+ amplitude with the dominant Kbar^*()0 amplitude. (The interference effect is reported in LINK 2002E.) This result is redundant with results of LINK 2004E elsewhere in these Listings.


pdgid: S031P44
text:
ABLIKIM 2019BH quotes B(D+ --> Kbar_1(1270)0 e+ nu_e) = 2.30+-0.26+0.18-0.21+-0.25E-3, where the last uncertainty is due to B(Kbar_1(1270)0 --> K- pi+ pi0) = 0.467+-0.050.


pdgid: S031Q23
text:
ABLIKIM 2024CR reconstructs D+ --> K0S pi+ pi- e+ nu_e and assumes that all come from Kbar_1()0 --> K0S pi+ pi- decays.


pdgid: S031C16
text:
DOBBS 2008 establishes |V(c d)/V(c s).f(+)**pi(0)/f(+)**K(0)| = 0.188+-0.008+-0.002 from the D+ and D0 decays to Kbar e+ nu_e and pi e+ nu_e. It finds Gamma(D0 --> pi- e+ nu_e) / Gamma(D+ --> pi0 e+ nu_e) = 2.03+-0.14+-0.08; isospin invariance predicts the ratio is 2.0.


pdgid: S031P47
text:
ABLIKIM 2020T reports 10.4+-1.0+-0.5E-4 from a measurement of [G(D+ --> eta mu+ nu_mu)/G(total)] * [B(eta --> 2gamma)] assuming B(eta --> 2gamma) = 39.41+-0.20E-2, which we rescale to our best value B(eta --> 2gamma) = 39.36+-0.18E-2. Our first error is their experiment's error and our second error is the systematic error from using our best value.


pdgid: S031R95
text:
DOBBS 2013 finds Gamma(D0 --> rho- e+ nu_e) / 2 Gamma(D+ --> rho0 e+ nu_e) = 1.03+-0.09+0.08-0.02; isospin invariance predicts the ratio is 1.0.


pdgid: S031R95
text:
HUANG 2005B finds Gamma(D0 --> rho- e+ nu_e) / 2 Gamma(D+ --> rho0 e+ nu_e) = 1.2+0.4-0.3+-0.1; isospin invariance predicts the ratio is 1.0.


pdgid: S031B50
text:
Because the reconstruction efficiency for photons is low, this FRABETTI 1997 result also includes any D+ --> eta^' mu+ nu_mu --> gamma rho0 mu+ nu_mu events in the numerator.


pdgid: S031P52
text:
ABLIKIM 2020H reports 17.7+-1.8+-1.1E-4 from a measurement of [G(D+ --> omega mu+ nu_mu)/G(total)] * [B(omega(782) --> pi+ pi- pi0)] assuming B(omega(782) --> pi+ pi- pi0) = 89.3+-0.6E-2, which we rescale to our best value B(omega(782) --> pi+ pi- pi0) = 89.2+-0.7E-2. Our first error is their experiment's error and our second error is the systematic error from using our best value.


pdgid: S031S12
text:
DOBBS 2007 and HE 2005 use single- and double-tagged events in an overall fit. DOBBS 2007 supersedes HE 2005.


pdgid: S031R01
text:
The difference of CLEO D+ --> K0S pi+ and K0L pi+ branching fractions over the sum (DOBBS 2007 and HE 2008) is +0.022+-0.016+-0.018.


pdgid: S031R19
text:
BALEST 1994 measures the ratio of D+ --> K- pi+ pi+ and D0 --> K- pi+ branching fractions to be 2.35+-0.16+-0.16 and uses their absolute measurement of the D0 --> K- pi+ fraction (AKERIB 1993).


pdgid: S031R19
text:
SCHINDLER 1981 (MARK-2) measures sigma(e+ e- --> psi(3770)) x branching fraction to be 0.38+-0.05 nb. We use the MARK-3 (ADLER 1988C) value of sigma = 4.2+-0.6+-0.3 nb.


pdgid: S031R49
text:
This LINK 2009 model-independent partial-wave analysis of the K- pi+ S-wave slices the K- pi+ mass range into 39 bins.


pdgid: S031R49
text:
The BONVICINI 2008A QMIPWA (quasi-model-independent partial-wave analysis) of the K- pi+ S-wave amplitude slices the K- pi+ mass range into 26 bins but keeps the Breit-Wigner Kbar_{{0}}^*(1430)0.


pdgid: S031R49
text:
This LINK 2007B fit uses a K matrix. The K- pi+ S-wave fit fraction given above breaks down into (207.3+-25.5+-12.4)% isospin-1/2 and (40.5+-9.6+-3.2)% isospin-3/2 -- with large interference between the two. The isospin-1/2 component includes the kappa (or Kbar_{{0}}^*(700)0) and Kbar_{{0}}^*(1430)0.


pdgid: S031P73
text:
ABLIKIM 2022U determines the ratio B(D+ --> K0S pi+ omega)/B(D0 --> K- pi+ omega)  =  0.21+-0.01+-0.01, in significant tension with statistical isospin model expectation of 0.9.


pdgid: S031Q26
text:
Amplitude analysis with two components. The second and third uncertainties are model and experimental systematic uncertainties, respectively.


pdgid: S031S17
text:
AAIJ 2023H parameterise the pi+ pi- S-wave using one complex number per bin in 50 bins of pi+ pi- invariant mass.


pdgid: S031S17
text:
LINK 2004 borrows a K-matrix parametrization from ANISOVICH 2003 of the full pi-pi S-wave isoscalar scattering amplitude to describe the pi+ pi- S-wave component of the pi+ pi+ pi- state. The fit fraction given above is a sum over five f_{{0}}() mesons, the f_{{0}}(980), f_{{0}}(1300), f_{{0}}(1200-1600), f_{{0}}(1500), and f_{{0}}(1750). See LINK 2004 for details and discussion.


pdgid: S031P70
text:
ABLIKIM 2021AD value is a fit fraction from an amplitude analysis of D+ --> K+ K0S pi0 with four components. Reconstructs the K^*(892)+ from its K+ pi0 final state.


pdgid: S031P71
text:
ABLIKIM 2021AD value is a fit fraction from an amplitude analysis of D+ --> K+ K0S pi0 with four components. Reconstructs the Kbar^*(892)0 from its K0S pi0 final state.


pdgid: S031Q09
text:
ABLIKIM 2024CJ reports B(D+ --> K0S K^*(892)+) = 8.72+-0.28+-0.15E-3 from an amplitude analysis of D+ --> K0S K0S pi+ with two modes, assuming that B(K^*(892)+ --> K0S pi+) = 1/3.


pdgid: S031P92
text:
ABLIKIM 2022BK report a 2.7 sigma significance for the observation of this decay and assign an upper limit for this branching fraction of 5.4E-4 at 90% CL. In their analysis, ABLIKIM 2022BK assume negligible interference between D+ --> K^*()+ pi0 --> K+ pi0 pi0 and the non-resonant decay to the same final state.


pdgid: S031P93
text:
ABLIKIM 2022BK report a 3.2 sigma significance for the observation of this decay mode. In their analysis, ABLIKIM 2022BK assume negligible interference between D+ --> K^*()+ eta --> K+ eta pi0 and the non-resonant decay to the same final state.


pdgid: S031P62
text:
ABLIKIM 2020Z subtracted the known branching fractions of D+ --> K+ eta, D+ --> K+ phi, and D+ --> K+ omega to obtain an estimate of the non-resonant component (ignoring interference effects and possible additional resonant contributions) B(D+ --> K+ pi+ pi- pi0 non-resonant) = 1.13+-0.08+-0.03E-3.


pdgid: S031P72
text:
ABLIKIM 2021BB result has subtracted the known branching fractions of D+ --> K+ eta,  D+ --> K+ phi, and D+ --> K+ omega resonances (ignoring interference effects). The result  including these components is measured to be B(D+ --> K+ pi+ pi- pi0) = 1.11+-0.12E-3,  where the uncertainty is statistical only.


pdgid: S031P72
text:
ABLIKIM 2020Z result has subtracted the known branching fractions of D+ --> K+ eta,  D+ --> K+ phi, and D+ --> K+ omega, ignoring interference effects. The result including  these components is measured to be 1.21+-0.08+-0.03E-3.


pdgid: S031P19
text:
Fit fraction from a Dalitz plot analysis of D+ --> K+ K+ K- decays. The last uncertainty is due to the amplitude model.


pdgid: S031R53
text:
This RUBIN 2010 limit is for the e+ e- mass in the continuum away from the phi(1020). See the next data block.


pdgid: S031R54
text:
This ABAZOV 2008D limit is for the mu+ mu- mass in the continuum away from the phi(1020). See the next data block.


pdgid: S031A5
text:
KO 2012A finds that after subtracting the contribution due to K0-Kbar0 mixing, the CP asymmetry due to the change of charm is (-0.024+-0.094+-0.067)%, consistent with zero.


pdgid: S031A5
text:
LINK 2002B measures N(D+ --> K0S pi+)/N(D+ --> K- pi+ pi+), the ratio of numbers of events observed, and similarly for the D-.


pdgid: S031A12
text:
The last uncertainty is due to the uncertainty on the CP asymmetry of the control channel,  D+ --> phi pi+.


pdgid: S031A13
text:
The last uncertainty is due to the uncertainty on the CP asymmetry of the control channel, D+ --> phi pi+.


pdgid: S031A15
text:
AAIJ 2014BD reports its result as A(CP)(D+- --> K0S pi+-) with CP-violation effects in the K0-Kbar0 system subtracted. It also measures A(CP)(D+- --> Kbar0 / K0 K+-) + A(CP)(D_s()+- --> Kbar0 / K0 pi+-) = (0.41+-0.49+-0.26)%.


pdgid: S031A6
text:
LINK 2002B measures N(D+ --> K0S K+)/N(D+ --> K0S pi+), the ratio of numbers of events observed, and similarly for the D-.


pdgid: S031A6
text:
LINK 2002B measures N(D+ --> K0S K+)/N(D+ --> K- pi+ pi+), the ratio of numbers of events observed, and similarly for the D-.


pdgid: S031A1
text:
This is the integrated CP asymmetry. LEES 2013F also searches for CP asymmetries in four regions of the Dalitz plots (two of which are listed below); in comparisons of binned D+ and D- Dalitz plots; in parametrized fits to those plots, including 2-body submodes; and in comparisons of Legendre-polynomial distributions for the K+ K- and K- pi+ systems.


pdgid: S031A1
text:
AUBERT 2005S measures N(D+ --> K+ K- pi+)/N(D_s()+ --> K+ K- pi+), the ratio of the numbers of events observed, and similarly for the D-.


pdgid: S031A1
text:
FRABETTI 1994I, AITALA 1998C, and LINK 2000B measure N(D+ --> K- K+ pi+)/N(D+ --> K- pi+ pi+), the ratio of numbers of events observed, and similarly for the D-.


pdgid: S031A1
text:
RUBIN 2008 performs a dedicated analysis of this decay mode on the same dataset, with slightly better precision. We therefore take it that BONVICINI 2014 does not supersede RUBIN 2008's A(CP) result.


pdgid: S031A2
text:
This LEES 2013F result is for the K-+ pi+- mass-squared between 0.4 and 1.0 GeV**2, and does not actually separate out the K^*().


pdgid: S031A2
text:
AUBERT 2005S measures N(D+ --> K+ Kbar^*()0)/N(D_s()+ --> K+ K- pi+), the ratio of the numbers of events observed, and similarly for the D-.


pdgid: S031A2
text:
FRABETTI 1994I and AITALA 1997B measure N(D+ --> K+ Kbar^*(892)0)/N(D+ --> K- pi+ pi+), the ratio of numbers of events observed, and similarly for the D-.


pdgid: S031A3
text:
This LEES 2013F result is for the K+ K- mass-squared less than 1.3 GeV**2 and the K-+ pi+- mass-squared above 1.0 GeV**2, and does not actually separate out the phi.


pdgid: S031A3
text:
AUBERT 2005S measures N(D+ --> phi pi+)/N(D_s()+ --> K+ K- pi+), the ratio of the numbers of events observed, and similarly for the D-.


pdgid: S031A3
text:
FRABETTI 1994I and AITALA 1997B measure N(D+ --> phi pi+)/N(D+ --> K- pi+ pi+), the ratio of numbers of events observed, and similarly for the D-.


pdgid: S031A4
text:
AITALA 1997B measure N(D+ --> pi+ pi- pi+)/N(D+ --> K- pi+ pi+), the ratio of numbers of events observed, and similarly for the D-.


pdgid: S031L01
text:
AAIJ 2014C uses binned and unbinned methods, and finds slightly better sensitivity with the former. We took the first value in the table of results for the binned method.


pdgid: S031L02
text:
AAIJ 2011G publishes results for several binning schemes. We picked the first value in their table of results.


pdgid: S031RVD
text:
Using PDG 2010 values of V_(cd) and lifetimes, DOBBS 2013 gets A(1)(0) = 0.56+-0.01+0.02-0.03,A(2)(0) = 0.47+-0.06+-0.04, and V(0) = 0.84+-0.09+0.05-0.06.


pdgid: S031FRV
text:
DEL-AMO-SANCHEZ 2011I finds the pole mass mass(A) = (2.63+-0.10+-0.13) GeV (mass(V) is fixed at 2 GeV).


pdgid: S031FRV
text:
LINK 2002L includes the effects of interference with an S-wave background. This much improves the goodness of fit, but does not much shift the values of the form factors.


pdgid: S031A29
text:
The amplitude model has 7 components, including a pi+ pi+- S-wave parametrised by one complex number per bin in 50 bins of pi+ pi- invariant mass.


pdgid: S032M
text:
Obtained by analyzing CLEO-c data but not authored by the CLEO Collaboration. The largest source of error in the TOMARADZE 2014 value is from the uncertainties in the K- and K(S)0 masses. The systematic error given above is the addition in quadrature of +-0.022 +-0.053 MeV, where the second error is from those mass uncertainties.


pdgid: S032M
text:
The largest source of error in the LEES 2013S value is from the uncertainty of the K+ mass. The quoted systematic error is in fact +-0.043 + 3 (mass(K+) - 493.677), in MeV.


pdgid: S032D
text:
AAIJ 2023BC analysis of D0 --> K0S pi+ pi- from B --> D0 mu nu X events allows for CP violation (none seen).


pdgid: S032D
text:
AAIJ 2019X D0 come from D^*()+ and Bbar --> D0 mu- X decays (and c.c.). Measurement allows for CP violation (none seen).


pdgid: S032D
text:
The result was established with D0 from prompt and secondary D^*. Based on 5 fb**-1 of data collected at sqrt(s) = 7, 8, 13 TeV. Assumes no CP violation. Reported x^'2 = 3.9+-2.7E-5 and y^' = 5.28+-0.52E-3, where x^' = x cos(delta) + y sin(delta), y^' = y


pdgid: S032D
text:
Model-independent measurement of the charm mixing parameters in the decay D0 --> K0S pi+ pi- using 1.0 fb^{-1} of LHCb data at sqrt(s) = 7 TeV.


pdgid: S032D
text:
Based on 976 fb**-1 of data collected at Y(nS) resonances. Assumes no CP violation. Reported x^'2() = 0.09+-0.22E-3 and y^' = 4.6+-3.4E-3, where x^' = x cos(delta) + y sin(delta), y^' = y cos(delta) - x sin(delta) and delta is the strong phase between D0 --> K+ pi- and Dbar0 --> K+ pi-.


pdgid: S032D
text:
The time-dependent Dalitz-plot analysis of D0 --> K0S pi+ pi- is emplored. Decay-time information and interference on the Dalitz plot are used to distinguish doubly Cabibbo-suppressed decays from mixing and to measure the relative phase between D0 --> K^*()+ pi- and Dbar0 --> K^*()+ pi-. This value allows CP violation and is sensitive to the sign of Delta(m).


pdgid: S032D
text:
Based on 9.6 fb**-1 of data collected at the Tevatron. Assumes no CP violation. Reported x^'2 = 0.08+-0.18E-3 and y^' = 4.3+-4.3E-3, where x^' = x cos(delta) + y sin(delta), y^' = y cos(delta) - x sin(delta) and delta is the strong phase between the D0 --> K+ pi- and Dbar0 --> K+ pi-.


pdgid: S032D
text:
DEL-AMO-SANCHEZ 2010D uses 540,800+-800 K0S pi+ pi- and 79,900+-300 K0S K+ K- events in a time-dependent amplitude analysis of the D0 and Dbar0 Dalitz plots. No evidence was found for CP violation, and the values here assume no such violation.


pdgid: S032D
text:
The result was established with D0 from prompt and secondary D^*. Based on 3 fb**-1 of data collected at sqrt(s) = 7, 8 TeV. Assumes no CP violation. Reported x^'2 = 3.6+-4.3E-5 and y^' = 5.23+-0.84E-3, where x^' = x cos(delta) + y sin(delta), y^' = y cos(delta) - x sin(delta) and delta is the strong phase between the D0 --> K+ pi- and Dbar0 --> K+ pi-.


pdgid: S032D
text:
Based on 3 fb**-1 of data collected at sqrt(s) = 7, 8 TeV. Assumes no CP violation. Reported x^'2 = 5.5+-4.9E-4 and y^' = 4.8+-1.0E-3, where x^' = x cos(delta) + y sin(delta), y^' = y cos(delta) - x sin(delta) and delta is the strong phase between the D0 --> K+ pi- and Dbar0 --> K+ pi-.


pdgid: S032D
text:
Based on 1 fb**-1 of data collected at sqrt(s) = 7 TeV in 2011. Assumes no CP violation. Reported x^'2 = -0.9+-1.3E-4 and y^' = 7.2+-2.4E-3, where x^' = x cos(delta) + y sin(delta), y^' = y cos(delta) - x sin(delta) and delta is the strong phase between the D0 --> K+ pi- and Dbar0 --> K+ pi-.


pdgid: S032D
text:
The AUBERT 2009AN values are inferred from the branching ratio G(D0 --> K+ pi- pi0 via Dbar0)/G(D0 --> K- pi+ pi0) given near the end of this Listings. Mixing is distinguished from DCS decays using decay-time information. Interference between mixing and DCS is allowed. The phase between D0 --> K+ pi- pi0 and Dbar0 --> K+ pi- pi0 is assumed to be small. The width difference here is y^'', which is not the same as y_{{CP}} in the note on D0--Dbar0 mixing.


pdgid: S032D
text:
LOWREY 2009 uses quantum correlations in e+ e- --> D0 Dbar0 at the psi(3770). See below for coherence factors and average relative strong phases for both D0 --> K- pi+ pi0 and D0 --> K- pi- 2pi+. A fit that includes external measurements of charm mixing parameters gets Delta(m) = 2.34+-0.61E10 hbar s**-1.


pdgid: S032D
text:
The ASNER 2005 and ZHANG 2007B values are from the time-dependent Dalitz-plot analysis of D0 --> K0S pi+ pi-. Decay-time information and interference on the Dalitz plot are used to distinguish doubly Cabibbo-suppressed decays from mixing and to measure the relative phase between D0 --> K^*()+ pi- and Dbar0 --> K^*()+ pi-. This value allows CP violation and is sensitive to the sign of Delta(m).


pdgid: S032D
text:
The AUBERT 2003Z, LI 2005A, and ZHANG 2006 limits are inferred from the D0-Dbar0 mixing ratio Gamma(K+ pi- (via Dbar0))/Gamma(K- pi+) given near the end of this D0 Listings. Decay-time information is used to distinguish DCS decays from D0-Dbar0 mixing. The limit allows interference between the DCS and mixing ratios, and also allows CP violation. AUBERT 2003Z assumes the strong phase between D0 --> K+ pi- and Dbar0 --> K+ pi- amplitudes is small; if an arbitrary phase is allowed, the limit degrades by 20%. The LI 2005A and ZHANG 2006 limits are valid for an arbitrary strong phase.


pdgid: S032D
text:
This LINK 2005H limit is inferred from the D0-Dbar0 mixing ratio Gamma(K+ pi- (via Dbar0))/Gamma(K- pi+) given near the end of this D0 Listings. Decay-time information is used to distinguish DCS decays from D0-Dbar0 mixing. The limit allows interference between the DCS and mixing ratios, and also allows CP violation.  The strong phase between D0 --> K+ pi- and Dbar0 --> K+ pi- is assumed to be small. If an arbitrary relative strong phase is allowed, the limit degrades by 25%.


pdgid: S032D
text:
This GODANG 2000 limit is inferred from the D0-Dbar0 mixing ratio Gamma(K+ pi- (via Dbar0))/Gamma(K- pi+) given near the end of this D0 Listings. Decay-time information is used to distinguish DCS decays from D0-Dbar0 mixing. The limit allows interference between the DCS and mixing ratios, and also allows CP violation.  The strong phase between D0 --> K+ pi- and Dbar0 --> K+ pi- is assumed to be small. If an arbitrary relative strong phase is allowed, the limit degrades by a factor of two.


pdgid: S032D
text:
AITALA 1998 allows interference between the doubly Cabibbo-suppressed and mixing amplitudes, and also allows CP violation in this term, but assumes that A(D)=A(R)=0. See the note on ``D0-Dbar0 Mixing,'' above.


pdgid: S032D
text:
This limit is inferred from R(M) for f = K+ pi- and f = K+ pi- pi+ pi-. See the note on ``D0-Dbar0 Mixing,'' above. Decay-time information is used to distinguish doubly Cabibbo-suppressed decays from D0-Dbar0 mixing.


pdgid: S032D
text:
This limit is inferred from R(M) for f = K+ lepton- nubar_lepton. See the note on ``D0-Dbar0 Mixing,'' above.


pdgid: S032D
text:
ANJOS 1988C assumes that y = 0. See the note on ``D0-Dbar0 Mixing,'' above. Without this assumption, the limit degrades by about a factor of two.


pdgid: S032DT
text:
AAIJ 2022O is the combination of the measurement in the D0 --> pi- pi+ channel and the one in the D0 --> K- K+ channel, that are (1.314+-0.106+-0.032)% and (1.416+-0.060+-0.028)% respectively, assuming fully correlated systematics except those related to peaking backgrounds.


pdgid: S032DT
text:
NAYAK 2020 reports 1.92+-1.82+-1.24+0.34-0.00E-2 where the last uncertainty is due to possible presence of CP-even decays in the data sample. Extracts y(CP)=(Gamma(CP+) - Gamma(CP-)) / (Gamma(CP+) + Gamma(CP-)) in D0 --> KS omega versus Dbar0 --> KS omega, by measuring the decay lifetime of D0 --> KS omega with omega --> pi+ pi- pi0 versus D0 --> K- pi+. We list 2y(CP) = 2y (= DeltaGamma/Gamma) in the absence of CP violation.


pdgid: S032DT
text:
Based on 3 fb**-1 of data collected at sqrt(s) = 7, 8 TeV. Measures the lifetime difference between D0 --> K- K+ and D0 --> pi- pi+ (CP even) decays and D0 --> K- pi+ (CP mixed) decays, or y(CP)=(Gamma(CP+) - Gamma(CP-)) / (Gamma(CP+) + Gamma(CP-)). The D0 mesons are required to originate from semimuonic decays of B mesons. We list 2y(CP) = DeltaGamma/Gamma.


pdgid: S032DT
text:
AAIJ 2019X D0 come from D^*()+ and Bbar --> D0 mu- X decays (and c.c.) in p p collisions at 7 and 8 TeV. Measurement allows for CP violation (none seen).


pdgid: S032DT
text:
The result was established with D0 from prompt and secondary D^*. Based on 5 fb**-1 of data collected at sqrt(s) = 7, 8, 13 TeV. Assumes no CP violation. Reported x^'2 = 3.9+-2.7E-5 and y^' = 5.28+-0.52E-3, where x^' = x cos(delta) + y sin(delta), y^' = y cos(delta) - x sin(delta) and delta is the strong phase between the D0 --> K+ pi- and Dbar0 --> K+ pi-.


pdgid: S032DT
text:
An improved measurement of Dbar0-D0 mixing and a search for CP violation in D0 decays to CP-even final states K+ K- and pi+ pi- using the final Belle data sample of 976 fb**-1.


pdgid: S032DT
text:
Obtained y_{{CP}}() = (0.72+-0.18+-0.12)% based on three effective D0 lifetimes measured in K-+ pi+-, K- K+, and pi- pi+. We list 2y_{{CP}}() = DeltaGamma/Gamma.


pdgid: S032DT
text:
Compared the lifetimes of D0 decay to the CP eigenstate K+ K- with D0 decay to pi+ K-. The values here assume no CP violation.


pdgid: S032DT
text:
DEL-AMO-SANCHEZ 2010D uses 540,800+-800 K0S pi+ pi- and 79,900+-300 K0S K+ K- events in a time-dependent amplitude analyses of the D0 and Dbar0 Dalitz plots. No evidence was found for CP violation, and the values here assume no such violation.


pdgid: S032DT
text:
ZUPANC 2009 uses a method based on measuring the mean decay time of D0 --> K0S K+ K- events for different K+ K- mass intervals.


pdgid: S032DT
text:
LINK 2000, AITALA 1999E, and ABE 2002I measure the lifetime difference between D0 --> K- K+ (CP even) decays and D0 --> K- pi+ (CP mixed) decays, or y(CP)= [Gamma(CP+)-Gamma(CP-)]/[Gamma(CP+)+Gamma(CP-)]. We list 2y(CP)=DeltaGamma/Gamma.


pdgid: S032DT
text:
CSORNA 2002 measures the lifetime difference between D0 --> K- K+ and pi- pi+ (CP even) decays and D0 --> K- pi+ (CP mixed) decays, or y(CP)= [Gamma(CP+)-Gamma(CP-)]/[Gamma(CP+)+Gamma(CP-)]. We list 2y(CP)=DeltaGamma/Gamma.


pdgid: S032DT
text:
This combines the y(CP) = (meanlife(K pi)/meanlife(K K))-1 using untagged K- pi+ and K- K+ events of AUBERT 2009AI with the disjoint y(CP) using tagged K- pi+, K- K+, and pi- pi+ events of AUBERT 2008U.


pdgid: S032DT
text:
LOWREY 2009 uses quantum correlations in e+ e- --> D0 Dbar0 at the psi(3770). See below for coherence factors and average relative strong phases for both D0 --> K- pi+ pi0 and D0 --> K- pi- 2pi+. A fit that includes external measurements of charm mixing parameters gets 2y = 1.62+-0.32E-2.


pdgid: S032DT
text:
The GODANG 2000, AUBERT 2003Z, LINK 2005H, LI 2005A, ZHANG 2006, AUBERT 2007W, and AALTONEN 2008E limits are inferred from the D0-Dbar0 mixing ratio Gamma(K+ pi- (via Dbar0))/Gamma(K- pi+) given near the end of this D0 Listings. Decay-time information is used to distinguish DCS decays from D0-Dbar0 mixing. The limits allow interference between the DCS and mixing ratios, and all except AUBERT 2007W and AALTONEN 2008E also allow CP violation. The phase between D0 --> K+ pi- and Dbar0 --> K+ pi- is assumed to be small. This is a measurement of y^' and is not the same as the y(CP) of our note above on ``D0-Dbar0 Mixing.''


pdgid: S032DT
text:
STARIC 2007 compares the lifetimes of D0 decay to the CP eigenstates K+ K- and pi+ pi- with D0 decay to K- pi+.


pdgid: S032DT
text:
The ASNER 2005 and ZHANG 2007B values are from the time-dependent Dalitz-plot analysis of D0 --> K0S pi+ pi-. Decay-time information and interference on the Dalitz plot are used to distinguish doubly Cabibbo-suppressed decays from mixing and to measure the relative phase between D0 --> K^*()+ pi- and Dbar0 --> K^*()+ pi-. This limit allows CP violation.


pdgid: S032DT
text:
The ranges of AUBERT 2003Z, LINK 2005H, LI 2005A, and ZHANG 2006 measurements are for 95% confidence level.


pdgid: S032DT
text:
AUBERT 2003P measures Y== 2 tau0 / (tau+ + tau-) - 1, where tau0 is the D0 --> K- pi+ (and Dbar0 --> K+ pi-) lifetime, and tau+ and tau- are the D0 and Dbar0 lifetimes to CP-even states (here K- K+ and pi- pi+). In the limit of CP conservation, Y~=~y==DeltaGamma / 2 Gamma (we list 2y = DeltaGamma/Gamma). AUBERT 2003P also uses tau+-tau- to get DeltaY = -0.008+-0.006+-0.002.


pdgid: S032QP
text:
AAIJ 2019X measurement comes form analysis of D0 --> K0S pi+ pi- decays. D0 come from D^*()+ and Bbar --> D0 mu- X decays (and c.c.) in p p collisions at 7 and 8 TeV.


pdgid: S032QP
text:
Based on 5 fb**-1 of data collected at sqrt(s) = 7, 8, 13 TeV. Allowing for CP violation, the direct CP violation in mixing is reported 1.00 < |q/p| < 1.35 at the 68.3% CL for the D0 --> K+ pi- and Dbar0 --> K+ pi-.


pdgid: S032QP
text:
The time-dependent Dalitz-plot analysis of D0 --> K0S pi+ pi- is employed. Decay-time information and interference on the Dalitz plot are used to distinguish doubly Cabibbo-suppressed decays from mixing and to measure the relative phase between D0 --> K^*()+ pi- and Dbar0 --> K^*()+ pi-. This value allows CP violation and is sensitive to the sign of Delta(m).


pdgid: S032QP
text:
Based on 3 fb**-1 of data collected at sqrt(s) = 7, 8 TeV. Allowing for CP violation, the direct CP violation in mixing is reported 0.75 < |q/p| < 1.24 at the 68.3% CL for the D0 --> K+ pi- and Dbar0 --> K+ pi-.


pdgid: S032QP
text:
The phase of p/q is (-14+16-18+-5)degree. The ZHANG 2007B value is from the time-dependent Dalitz-plot analysis of D0 --> K0S pi+ pi-. Decay-time information and interference on the Dalitz plot are used to distinguish doubly Cabibbo-suppressed decays from mixing and to measure the relative phase between D0 --> K^*()+ pi- and Dbar0 --> K^*()+ pi-. This value allows CP violation.


pdgid: S032AG
text:
Requires D0 to originate from D^*(2010)+ --> D0 pi+. Measures the parameter DeltaY_{{f}} ~= -A_{{Gamma}}^f up to 1% corrections from y_{{CP}}^f.


pdgid: S032AG
text:
A combination of D0 --> K+ K- and D0 --> pi+ pi- from AAIJ 2021AI, AAIJ 2020, AAIJ 2017AK and AAIJ 2015AA


pdgid: S032AG
text:
Measured using D0 --> K+ K- decays, combines measurements with D0 either from partially reconstructed semileptonic B hadron decays or from D^*()+ --> D0 pi+.


pdgid: S032AG
text:
Measured using D0 --> pi+ pi- decays, combines measurements with D0 either from partially reconstructed semileptonic B hadron decays or from D^*()+ --> D0 pi+.


pdgid: S032AG
text:
Measured using D0 --> K+ K- decays, with D0 from partially reconstructed semileptonic B hadron decays.


pdgid: S032AG
text:
Measured using D0 --> pi+ pi- decays, with D0 from partially reconstructed semileptonic B hadron decays.


pdgid: S032D03
text:
AAIJ 2019X result comes form analysis of D0 --> K0S pi+ pi- events. D0 come from D^*()+ and Bbar --> D0 mu- X decays (and c.c.) in p p collisions at 7 and 8 TeV.


pdgid: S032D03
text:
PENG 2014 reports -0.10+-0.19+-0.05+0.05-0.07 value where the last uncertainty is due to the amplitude model. We have added the systematic uncertainties in quadrature.


pdgid: S032DKP
text:
Uses quantum correlations in e+ e- --> D0 Dbar0 at the psi(3770) to measure the asymmetry  of the branching fraction of D0 --> K- pi+ in CP-odd and CP-even eigenstates to be  (13.2+-1.1+-0.7)% and (13.0+-1.2+-0.8)% when using the predominantly  CP-even tag D0 --> pi+ pi- pi0. A fit that includes external measurements of charm mixing  parameters finds the value quoted above.


pdgid: S032DKP
text:
Uses quantum correlations in e+ e- --> D0 Dbar0 at the psi(3770) to measure the asymmetry of the branching fraction of D0 --> K- pi+ in CP-odd and CP-even eigenstates to be (12.7+-1.3+-0.7)%. A fit that includes external measurements of charm mixing parameters finds the value quoted above.


pdgid: S032DKP
text:
Uses quantum correlations in e+ e- --> D0 Dbar0 at the psi(3770), where decay rates of CP-tagged K pi final states depend on the strong phases between the decays of D0 --> K+ pi- and Dbar0 --> K+ pi-. The measurements obtained sin(delta) = -0.01+-0.41+-0.04 and |delta| = (10+28-53+13-00)degree as well. A fit that includes external measurements of charm mixing parameters finds cos(delta) = 1.15+0.19-0.17+0.00-0.08, sin(delta) = 0.56+0.32-0.31+0.21-0.20, and |delta| = (18+11-17)degree.


pdgid: S032DKP
text:
ASNER 2008 uses quantum correlations in e+ e- --> D0 Dbar0 at the psi(3770), where decay rates of CP-tagged K pi final states depend on cos( delta) because of interfering amplitudes. The above measurement implies |delta| < 75degree with a confidence level of 95%. A fit that includes external measurements of charm mixing parameters finds cos( delta) = 1.10+-0.35+-0.07. See also the note on ``D0- Dbar0 Mixing'' p. 783 in our 2008 Review (PDG 2008).


pdgid: S032CF1
text:
Uses quantum correlations in e+ e- --> D0 Dbar0 at the psi(3770), where the decay rates of CP-tagged K- pi+ pi0 final states depend on R(K pi pi0) and delta**K pi pi0.


pdgid: S032CF1
text:
A combined fit with a recent LHCb D0 Dbar0 mixing results in AAIJ 2016F is also reported to be 0.81+-0.06.


pdgid: S032CF1
text:
LOWREY 2009 uses quantum correlations in e+ e- --> D0 Dbar0 at the psi(3770), where the decay rates of CP-tagged K- pi+ pi0 final states depend on R(K pi pi0) and delta**K pi pi0. A fit that includes external measurements of charm mixing parameters gets R(K pi pi0) = 0.84+-0.07.


pdgid: S032SP1
text:
A combined fit with a recent LHCB D0Dbar0 mixing results in AAIJ 2016F is also reported to be 198+14-15 degree.


pdgid: S032SP1
text:
LOWREY 2009 uses quantum correlations in e+ e- --> D0 Dbar0 at the psi(3770), where the decay rates of CP-tagged K- pi+ pi0 final states depend on R(K pi pi0) and delta**K pi pi0. A fit that includes external measurements of charm mixing parameters gets delta**K pi pi0 = (227+14-17)degrees.


pdgid: S032CF2
text:
Uses quantum correlations in e+ e- --> D0 Dbar0 at the psi(3770), where the decay rates of CP-tagged K- pi- 2pi+ final states depend on R(K 3pi) and delta**K 3pi.


pdgid: S032CF2
text:
A combined fit with a recent LHCB D0Dbar0 mixing results in AAIJ 2016F is also reported, to be 0.43+0.17-0.13.


pdgid: S032CF2
text:
Calculated from amplitude models to and and cc. Reports 0.458+-0.010+-0.012+-0.020 value where the 3rd uncertainty is the model uncertainty. We combined both systematic uncertainties in quadrature. Because of the importance of model independence in the practical use of the coherence factor, we do not include model-derived results in the average.


pdgid: S032CF2
text:
LOWREY 2009 uses quantum correlations in e+ e- --> D0 Dbar0 at the psi(3770), where the decay rates of CP-tagged K- pi- 2pi+ final states depend on R(K 3pi) and delta**K 3pi. A fit that includes external measurements of charm mixing parameters gets R(K 3pi) = 0.33+0.26-0.23.


pdgid: S032SP2
text:
A combined fit with a recent LHCb D0 Dbar0 mixing results in AAIJ 2016F is also reported to be (128+28-17)degree.


pdgid: S032SP2
text:
LOWREY 2009 uses quantum correlations in e+ e- --> D0 Dbar0 at the psi(3770), where the decay rates of CP-tagged K- pi- 2pi+ final states depend on R(K 3pi) and delta**K 3pi. A fit that includes external measurements of charm mixing parameters gets delta**K 3pi = (114+26-23)degrees.


pdgid: S032A82
text:
From a time-dependent analysis of D mixing in D0 --> K+ pi- pi+ pi-. This result uses external constraints on R(M)= 1/2 (x**2 + y**2). Without such constraints, AAIJ 2016F measure 0.3+-1.8E-3, with a large correlation coefficient to R(M).


pdgid: S032CF3
text:
Uses quantum correlations in e+ e- --> D0 Dbar0 at the psi(3770), where the signal side D decays to K0S K pi and the tag-side D decays to K pi, K pi pi pi, K pi pi0, and 10 additional CP-even, CP-odd, and mixed CP modes involving K(S)0 or K(L)0.


pdgid: S032CF4
text:
Uses quantum correlations in e+ e- --> D0 Dbar0 at the psi(3770), where the signal side D decays to K0S K pi and the tag-side D decays to K pi, K pi pi pi, K pi pi0., and 10 additional CP-even, CP-odd, and mixed CP modes involving K(S)0 or K(L)0.


pdgid: S032R3
text:
ABLIKIM 2006U reports B(D0 --> K0 X or Kbar0 X) = 0.476+-0.048+-0.030 which we take as twice the branching fraction for D0 --> K0S X.


pdgid: S032R3
text:
COFFMAN 1991 reports B(D0 --> K0 X or Kbar0 X) = 0.455+-0.050+-0.032 which we take as twice the branching fraction for D0 --> K0S X.


pdgid: S032R57
text:
The pi- e+ nu_e and K- e+ nu_e results of WIDHALM 2006 give |V(c d)/V(c s).f(+)**pi(0)/f(+)**K(0)|**2 = 0.042+-0.003+-0.003.


pdgid: S032R57
text:
DOBBS 2008 establishes |V(c d)/V(c s).f(+)**pi(0)/f(+)**K(0)| = 0.188+-0.008+-0.002 from the D+ and D0 decays to Kbar e+ nu_e and pi e+ nu_e.


pdgid: S032R66
text:
The event samples in this AUBERT 2007BG result include radiative photons. The D0 --> K- e+ nu_e form factor at q**2 = 0 is f(+)(0) = 0.727+-0.007+-0.005+-0.007.


pdgid: S032R66
text:
BEAN 1993C uses K- mu+ nu_mu as well as K- e+ nu_e events and makes a small phase-space adjustment to the number of the mu+ events to use them as e+ events. A pole mass of 2.00+-0.12+-0.18 GeV/c**2 is obtained from the q**2 dependence of the decay rate.


pdgid: S032R66
text:
CRAWFORD 1991B uses K- e+ nu_e and K- mu+ nu_mu candidates to measure a pole mass of 2.1+0.4-0.2+0.3-0.2 GeV/c**2 from the q**2 dependence of the decay rate.


pdgid: S032R66
text:
ANJOS 1989F measures a pole mass of 2.1+0.4-0.2+-0.2 GeV/c**2 from the q**2 dependence of the decay rate.


pdgid: S032B29
text:
FRABETTI 1995G extracts the ratio of form factors f(-)(0)/f(+)(0) = -1.3+3.6-3.4+-0.6, and measures a pole mass of 1.87+0.11-0.08+0.07-0.06 GeV/c**2 from the q**2 dependence of the decay rate.


pdgid: S032B29
text:
FRABETTI 1993I measures a pole mass of 2.1+0.7-0.3+0.7-0.3 GeV/c**2 from the q**2 dependence of the decay rate.


pdgid: S032B29
text:
CRAWFORD 1991B measures a pole mass of 2.00+-0.12+-0.18 GeV/c**2 from the q**2 dependence of the decay rate.


pdgid: S032B81
text:
BEAN 1993C uses K^*()- mu+ nu_mu as well as K^*()- e+ nu_e events and makes a small phase-space adjustment to the number of the mu+ events to use them as e+ events.


pdgid: S032D72
text:
An amplitude analysis of D0 --> K- pi0 mu+ nu_mu with two components. ABLIKIM 2025 measures B(D0 --> K^*(892)- mu+ nu_mu, K^*()- --> K- pi0)/B(D0 --> K- pi0 mu+ nu_mu) = 94.24+-0.35+-0.29E-2, from which we determine the reported ratio assuming B(K^*()- --> K- pi0) = 1/3. With the same assumption, ABLIKIM 2025 reports B(D0 --> K^*()- mu+ nu_mu) = 2.073+-0.039+-0.032E-2.


pdgid: S032B27
text:
BAI 1991 finds that a fraction 0.79+0.15-0.17+0.09-0.03 of combined D+ and D0 decays to Kbar pi e+ nu_e (24 events) are Kbar^*(892) e+ nu_e. BAI 1991 uses 56 K- e+ nu_e events to measure a pole mass of 1.8+-0.3+-0.2 GeV/c**2 from the q**2 dependence of the decay rate.


pdgid: S032B28
text:
BAI 1991 finds that a fraction 0.79+0.15-0.17+0.09-0.03 of combined D+ and D0 decays to Kbar pi e+ nu_e (24 events) are Kbar^*(892) e+ nu_e.


pdgid: S032D70
text:
ABLIKIM 2024CR reconstructs D0 --> K0S pi- pi0 e+ nu_e and assumes that all come from Kbar_1()- --> K0S pi- pi0 decays.


pdgid: S032D71
text:
An amplitude analysis of D0 --> K- pi0 mu+ nu_mu with two components. ABLIKIM 2025 reports B(D0 --> ( K- pi0 )_S-wave mu+ nu_mu) = 4.223+-0.268+-0.222E-4.


pdgid: S032B75
text:
KODAMA 1993B searched in K- pi+ pi- mu+ nu_mu, but the limit includes other (Kbar^*(892) pi)^- charge states.


pdgid: S032S25
text:
HUANG 2005 uses both e and mu events, and makes a small correction to the mu events to make them effectively e events. This result gives |V(c d)/V(c s).f(+)**pi(0)/f(+)**K(0)|**2 = 0.038+0.006-0.007+0.005-0.003.


pdgid: S032S25
text:
FRABETTI 1996B uses both e and mu events, and makes a small correction to the mu events to make them effectively e events. This result gives |V(c d)/V(c s).f(+)**pi(0)/f(+)**K(0)|**2 = 0.050+-0.011+-0.002.


pdgid: S032S25
text:
BUTLER 1995 has 87+-33 pi- e+ nu_e events. The result gives |V(c d)/V(c s).f(+)**pi(0)/f(+)**K(0)|**2 = 0.052+-0.020+-0.007.


pdgid: S032Q80
text:
Seen 100% via D0 --> rho(770)- e+ nu_e, and also reported as the branching fraction for D0 --> rho(770)- e+ nu_e.


pdgid: S032C39
text:
This result is the same as the one reported for D0 --> pi- pi0 e+ nu_e which ABLIKIM 2019C found to proceed 100% via D0 --> rho(770)- e+ nu_e. Superseded by ABLIKIM 2024CP.


pdgid: S032R12
text:
ABLIKIM 2018W measured the combined K-+ pi+- branching fraction to be 3.898%. We have subtracted off the doubly Cabibbo-suppressed branching fraction B(D0 --> K+ pi-) =, even though it is less than one-third of the uncertainty of the combined measurement, in order to treat this as a measurement of B(D0 --> K- pi+).


pdgid: S032R12
text:
ABACHI 1988, DECAMP 1991J, AKERIB 1993, ALBRECHT 1994F, and BARATE 1997C use D^*(2010)+ --> D0 pi+ decays. The pi+ is both slow and of low pT with respect to the event thrust axis or nearest jet (~~D^*()+ direction). The excess number of such pi+'s over background gives the number of D^*(2010)+ --> D0 pi+ events, and the fraction with D0 --> K- pi+ gives the D0 --> K- pi+ branching fraction.


pdgid: S032R12
text:
ARTUSO 1998, following ALBRECHT 1994, uses D0 mesons from Bbar0 --> D^*(2010)+ X lepton- nubar_lepton decays. Our average uses the CLEO average of this value with the values of COAN 1998 and AKERIB 1993.


pdgid: S032R12
text:
COAN 1998 assumes that Gamma(B --> Dbar X lepton+ nu)/Gamma(B --> X lepton+ nu) = 1.0 -3|V(u b)/V(c b)|**2-0.010+-0.005, the last term accounting for Bbar --> D_s()+ K X lepton- nubar. COAN 1998 is included in the CLEO average in ARTUSO 1998.


pdgid: S032R12
text:
ALBRECHT 1994 uses D0 mesons from Bbar0 --> D^*()+ lepton- nubar_lepton decays. This is a different set of events than used by ALBRECHT 1994F.


pdgid: S032R12
text:
This AKERIB 1993 value includes radiative corrections; without them, the value is 0.0391+-0.0008+-0.0017. AKERIB 1993 is included in the CLEO average in ARTUSO 1998.


pdgid: S032R12
text:
SCHINDLER 1981 (MARK-2) measures sigma(e+ e- --> psi(3770)) x branching fraction to be 0.24+-0.02 nb. We use the MARK-3 (ADLER 1988C) value of sigma = 5.8+-0.5+-0.6 nb.


pdgid: S032R12
text:
PERUZZI 1977 (MARK-1) measures sigma(e+ e- --> psi(3770)) x branching fraction to be 0.25+-0.05 nb. We use the MARK-3 (ADLER 1988C) value of sigma = 5.8+-0.5+-0.6 nb.


pdgid: S032S07
text:
The difference of HE 2008 D0 --> K0S pi0 and K0L pi0 branching fractions over the sum is 0.108+-0.025+-0.024. This is consistent with U-spin symmetry and the Cabibbo angle.


pdgid: S032R21
text:
See the footnote on the ALBRECHT 1994F measurement of Gamma(K- pi+)/Gamma(total) for the method used.


pdgid: S032R21
text:
SCHINDLER 1981 (MARK-2) measures sigma(e+ e- --> psi(3770)) x branching fraction to be 0.30+-0.08 nb. We use the MARK-3 (ADLER 1988C) value of sigma = 5.8+-0.5+-0.6 nb.


pdgid: S032R21
text:
PERUZZI 1977 (MARK-1) measures sigma(e+ e- --> psi(3770)) x branching fraction to be 0.46+-0.12 nb. We use the MARK-3 (ADLER 1988C) value of sigma = 5.8+-0.5+-0.6 nb.


pdgid: S032B59
text:
The error on this AUBERT 2008AL value includes both statistical and systematic uncertainties; the latter dominates.


pdgid: S032R19
text:
SCHINDLER 1981 (MARK-2) measures sigma(e+ e- --> psi(3770)) x branching fraction to be 0.68+-0.23 nb. We use the MARK-3 (ADLER 1988C) value of sigma = 5.8+-0.5+-0.6 nb.


pdgid: S032R24
text:
SCHINDLER 1981 (MARK-2) measures sigma(e+ e- --> psi(3770)) x branching fraction to be 0.68+-0.11 nb. We use the MARK-3 (ADLER 1988C) value of sigma = 5.8+-0.5+-0.6 nb.


pdgid: S032R24
text:
PERUZZI 1977 (MARK-1) measures sigma(e+ e- --> psi(3770)) x branching fraction to be 0.36+-0.10 nb. We use the MARK-3 (ADLER 1988C) value of sigma = 5.8+-0.5+-0.6 nb.


pdgid: S032B43
text:
In addition to the 14 ABLIKIM 2017O branching ratios we have listed, the paper gives 15 more ratios for mostly non-resonant modes. Four of the 15 have less than 2-standard-deviation significance. Here are some of the omitted modes, with S, P, V, A, and T for scalar, pseudo-scalar, vector, axial-vector, and tensor spin sub-structures: pi+ (K- rho0)_P, pi+ (K- rho0)_V, pi+ (Kbar^*()0 pi-)_P, pi+ (Kbar^*()0 pi-)_V, pi+ ( pi- ( K- pi+)(S-wave))(A), (K- pi+)_V (pi+ pi-)_S, (K- pi+)_T (pi+ pi-)_S...


pdgid: S032R25
text:
AGUILAR-BENITEZ 1987F and BARLAG 1992C compute the branching fraction using topological normalization. They do not distinguish the presence of a third pi0, and thus are not included in the average.


pdgid: S032R25
text:
ADLER 1988C uses an absolute normalization method finding this decay channel opposite a detected Dbar0 --> K+ pi- in pure D Dbar events.


pdgid: S032D26
text:
ABLIKIM 2022U determines the ratios B(D0 --> K0S pi0 omega)/B(D0 --> K- pi+ omega) =   0.23+-0.01+-0.01 and B(D+ --> K0S pi+ omega)/B(D0 --> K- pi+ omega) =  0.21+-0.01+-0.01, in significant tension with statistical isospin model expectations of 0.4 and 0.9 respectively.


pdgid: S032D24
text:
ABLIKIM 2022U determines the ratio B(D0 --> K0S pi0 omega)/B(D0 --> K- pi+ omega)  =  0.23+-0.01+-0.01, in significant tension with statistical isospin model expectation of 0.4.


pdgid: S032S03
text:
The eta here is detected in its gamma gamma mode, but other eta modes are included in the value given.


pdgid: S032S04
text:
In addition to K0S a_0(980) and Kbar^*(892)0 eta modes, RUBIN 2004 finds a fit fraction of 0.246+-0.092+-0.091 for other, undetermined modes.


pdgid: S032Q97
text:
CHEN 2020A reports 0.500+-0.002+-0.020+-0.003 from a measurement of [G(D0 --> K- pi+ eta)/G(D0 --> K- pi+)] * [B(eta --> 2gamma)] assuming B(eta --> 2gamma) = 39.41+-0.20E-2, which we rescale to our best value B(eta --> 2gamma) = 39.36+-0.18E-2. Our first error is their experiment's error and our second error is the systematic error from using our best value. The third reported uncertainty is the uncertainty from B(eta --> gamma gamma).


pdgid: S032Q98
text:
CHEN 2020A reports 1.41+-0.04+0.12-0.11+-0.01E-2 from a measurement of [G(D0 --> Kbar^*(892)0 eta)/G(total)] * [B(eta --> 2gamma)] assuming B(eta --> 2gamma) = 39.41+-0.20E-2, which we rescale to our best value B(eta --> 2gamma) = 39.36+-0.18E-2. Our first error is their experiment's error and our second error is the systematic error from using our best value. The third reported uncertainty is the uncertainty from B(eta --> gamma gamma).


pdgid: S032D32
text:
ABLIKIM 2022W reports 0.414+-0.021+-0.010E-2 from a measurement of [G(D0 --> K0L phi)/G(total)] * [B(phi(1020) --> K+ K-)] assuming B(phi(1020) --> K+ K-) = 0.491+-0.005, which we rescale to our best value B(phi(1020) --> K+ K-) = 49.9+-0.5E-2. Our first error is their experiment's error and our second error is the systematic error from using our best value.


pdgid: S032C45
text:
AUBERT,B 2005J calls the mode K0S f_0(1400), but insofar as it is seen here at all, it is certainly the same as f_{{0}}(1370).


pdgid: S032P00
text:
AAIJ 2016N gives results for two S-wave parameterisations. We take the values from the model with LASS parametrization, and the difference as a systematic uncertainty.


pdgid: S032P02
text:
AAIJ 2016N gives results for two S-wave parameterisations. We take the values from the model with LASS parametrization, and the difference as a uncertainty (which in this case dominates)


pdgid: S032P03
text:
AAIJ 2016N gives results for two S-wave parameterisations. We take the values from the model with LASS parametrization, and the difference as a systematic uncertainty (which in this case dominates).


pdgid: S032S08
text:
The only major difference between fits I and II in the AUBERT 2007T analysis is in this mode, where the fit-I fraction is (16.3+-3.4+-2.1)%.


pdgid: S032S11
text:
When AUBERT 2007T replace the f_0(980) pi0 mode with a_0(980) pi0, the fit fraction is a negligibly different (11.0+-1.5+-1.2)%.


pdgid: S032R05
text:
The error is statistical only. CAWLFIELD 2006A also fits the Dalitz plot replacing this flat nonresonant background with broad S-wave kappa+- --> K+- pi0 resonances. There is no significant improvement in the fit, and K^*()+- K-+ and phi pi0 results are not much changed.


pdgid: S032D18
text:
LI 2021G reports [G(D0 --> phi(1020) eta)/G(D0 --> K- pi+ eta)] * [B(phi(1020) --> K+ K-)] = 4.82+-0.23+-0.16E-3 which we divide by our best value B(phi(1020) --> K+ K-) = 49.9+-0.5E-2. Our first error is their experiment's error and our second error is the systematic error from using our best value.


pdgid: S032B9
text:
LINK 2005G uses a smaller, cleaner subset of 1279+-48 events for the amplitude analysis that gives the results in the next data blocks.


pdgid: S032Q03
text:
ARTUSO 2012 and DARGENT 2017 use the same dataset, but ARTUSO 2012 uses a formulation for the D-wave component that is in fact a mix of S- and D-wave, while DARGENT 2017 uses a pure D-wave. This explains the discrepancy in their rho phi S- and D-wave components.


pdgid: S032Q16
text:
ARTUSO 2012 use a formulation for the D-wave component that is in fact a mix of S- and D-wave, while DARGENT 2017 uses a pure D-wave.


pdgid: S032Q23
text:
DARGENT 2017 find K^*(1410)+ pi- and K^*(1680)+ pi-, which both peak outside the D0 --> K K pi pi kinematic range, effectively indistinguishable; we list their result under K^*(1680)+ pi-.


pdgid: S032P61
text:
DARGENT 2017 find K^*(1410)+ pi- and K^*(1680)+ pi-, which both peak outside the D0 --> K K pi pi kinematic range, effectively indistinguishable.


pdgid: S032B93
text:
ABLIKIM 2022 determines the longitudinal polarization fraction of the phi and omega, f_{{L}} = 0.00+-0.10+-0.08, corresponding to f_{{L}} < 0.24 at 95% CL.


pdgid: S032S26
text:
The BITENC 2008 right-sign sample includes about 15% of D0 --> K- pi0 lepton+ nu_lepton and other decays.


pdgid: S032S26
text:
AITALA 1996C uses D^*()+ --> D0 pi+ (and charge conjugate) decays to identify the charm at production and D0 --> K- lepton+ nu_lepton (and charge conjugate) decays to identify the charm at decay.


pdgid: S032R61
text:
This LINK 2005H result assumes no mixing but allows CP violation. If neither mixing nor CP violation is allowed, R = 4.29+-0.63+-0.28E-3.


pdgid: S032R61
text:
This AUBERT 2003Z result allows CP violation. If CP violation is not allowed, R = 0.00359+-0.00020+-0.00027.


pdgid: S032R08
text:
This AAIJ 2018K value is for direct and indirect CP violation allowed. The value is the same if either one or the other is not allowed, but in each case the error then is 0.028+-0.014E-3.


pdgid: S032R08
text:
This LINK 2005H result allows CP violation. Allowing mixing but not CP violation, R(D) = 3.81+1.67-1.63+-0.92E-3.


pdgid: S032R9
text:
This ZHANG 2006 result allows CP violation, but the result does not change if CP violation is not allowed.


pdgid: S032R9
text:
This LI 2005A result allows CP violation. The limit becomes < 0.00042 (95% CL) if CP violation is not allowed.


pdgid: S032R9
text:
This AUBERT 2003Z result allows CP violation and assumes that the strong phase between D0 --> K+ pi- and Dbar0 --> K+ pi- is small, and limits only D0 --> Dbar0 transitions via off-shell intermediate states. The limit on transitions via on-shell intermediate states is 0.0016.


pdgid: S032R9
text:
This GODANG 2000 result allows CP violation and assumes that the strong phase between D0 --> K+ pi- and Dbar0 --> K+ pi- is small, and limits only D0 --> Dbar0 transitions via off-shell intermediate states. The limit on transitions via on-shell intermediate states is 0.0017.


pdgid: S032R9
text:
This BARATE 1998W result assumes no interference between the DCS and mixing amplitudes (y' = 0 in the note on ``D0-Dbar0 Mixing'' near the start of the D0 Listings). When interference is allowed, the limit degrades to 0.036 (95%CL).


pdgid: S032R9
text:
This ANJOS 1988C result assumes no interference between the DCS and mixing amplitudes (y' = 0 in the note on ``D0-Dbar0 Mixing'' near the start of the D0 Listings). When interference is allowed, the limit degrades to 0.019.


pdgid: S032R75
text:
This ASNER 2005 limit allows CP violation. If CP violation is not allowed, the limit is 0.0042 at 95% CL.


pdgid: S032C24
text:
A combined fit with a recent LHCb D0 Dbar0 mixing results in AAIJ 2016F is also reported to be 2.00+-0.11E-3.


pdgid: S032R00
text:
This AUBERT,B 2006N limit assumes no CP violation. The measured value corresponding to the limit is 2.3+1.8-1.4+-0.4E-4. If CP violation is allowed, this becomes 1.0+2.2-0.7+-0.3E-4.


pdgid: S032P22
text:
This result uses external input on the mixing parameters x, y. Without this input, the result is 3.215+-0.136E-3.


pdgid: S032P22
text:
A combined fit with a recent LHCb D0 Dbar0 mixing results in AAIJ 2016F is also reported to be 3.01+-0.07E-3.


pdgid: S032R62
text:
AAIJ 2016F result comes from time-dependent analysis that uses external input on the mixing parameters x, y. Without this input, the result is 3.29+-0.08E-3.


pdgid: S032R62
text:
AMMAR 1991 cannot and DYTMAN 2001, TIAN 2005 do not distinguish between doublyCabibbo-suppressed decay and D0-Dbar0 mixing.


pdgid: S032R62
text:
This AITALA 1998result assumes no D0-Dbar0 mixing (R(M) in the note on ``D0-Dbar0 Mixing'').It becomes -0.0020+0.0117-0.0106+-0.0035 whenmixing is allowed and decay-time information is used todistinguish doubly Cabibbo-suppressed decays from mixing.


pdgid: S032R62
text:
ANJOS 1988C uses decay-time information to distinguish doubly Cabibbo-suppressed (DCS) decays from D0-Dbar0 mixing. However, the result assumes no interference between the DCS and mixing amplitudes (y' = 0 in the note on ``D0-Dbar0 Mixing'' near the start of the D0 Listings). When interference is allowed, the limit degrades to 0.033.


pdgid: S032S83
text:
AAIJ 2016F result comes from an unconstrained decay-time dependent fit to the wrong-sign to right-sign decay rates ratio as (x^2 + y^2)/2.


pdgid: S032S83
text:
ANJOS 1988C uses decay-time information to distinguish doubly Cabibbo-suppressed (DCS) decays from D0-Dbar0 mixing. However, the result assumes no interference between the DCS and mixing amplitudes (y' = 0 in the note on ``D0-Dbar0 Mixing'' near the start of the D0 Listings). When interference is allowed, the limit degrades to 0.007.


pdgid: S032R99
text:
AITALA 1998 uses decay-time information to distinguish doubly Cabibbo-suppressed decays from D0-Dbar0 mixing. The fit allows interference between the two amplitudes, and also allows CP violation in this term. The central value obtained is 0.0039+0.0036-0.0032+-0.0016. When interference is disallowed, the result becomes 0.0021+-0.0009+-0.0002.


pdgid: S032R99
text:
This combines results of ANJOS 1988C on K+ pi- and K+ pi- pi+ pi- (via Dbar0) reported in the data block above (see footnotes there). It assumes no interference.


pdgid: S032R7
text:
Here MISHRA 1994 uses ``the statistical approach advocated by the PDG.'' For an alternate approach, giving a limit of 9E-6 at 90% confidence level, see the paper.


pdgid: S032R63
text:
This FREYBERGER 1996 limit is obtained using a phase-space model. The limit changes to <1.8E-4 using a photon pole amplitude model.


pdgid: S032C15
text:
The second AAIJ 2017BG error is the systematic 0.51E-7 and normalization 0.97E-7 mode errors added in quadrature.


pdgid: S032P67
text:
AAIJ 2014B measures this branching-fraction limit relative to the pi+ pi- phi, phi --> mu+ mu- fraction. The above limit excludes the resonant phi, omega, and rho regions, and then fills those gaps with a phase-space model.


pdgid: S032R64
text:
This FREYBERGER 1996 limit is obtained using a phase-space model. The limit changes to <4.5E-4 using a photon pole amplitude model.


pdgid: S032S47
text:
This FREYBERGER 1996 limit is obtained using a phase-space model. The limit changes to <2.7E-4 using a photon pole amplitude model.


pdgid: S032S48
text:
This FREYBERGER 1996 limit is obtained using a phase-space model. The limit changes to <6.5E-4 using a photon pole amplitude model.


pdgid: S032Q86
text:
Observation with 9.7 sigma significance. The last uncertainty is due to the uncertainty on the branching fraction of the normalization mode, D0 --> K- pi+ pi+ pi-. The second uncertainty is other systematic and is dominated by the model parameterization.


pdgid: S032Q86
text:
LEES 2019A also sets an upper limit for non-resonant regions, where long-distance effects are expected to be small: < 3.1E-6 at 90% CL.


pdgid: S032S49
text:
This FREYBERGER 1996 limit is obtained using a phase-space model. The limit changes to <7.6E-5 using a photon pole amplitude model.


pdgid: S032C19
text:
The second AAIJ 2017BG error is the systematic 0.09E-7 and normalization 0.16E-7 mode errors added in quadrature.


pdgid: S032S50
text:
This FREYBERGER 1996 limit is obtained using a phase-space model. The limit changes to <2.4E-4 using a photon pole amplitude model.


pdgid: S032R70
text:
ABLIKIM 2018P report a 90% C.L. limit on D0 --> KS e+ e- of 1.2E-5 which is here interpreted in terms of D0 --> Kbar0 e+ e-.


pdgid: S032S51
text:
This FREYBERGER 1996 limit is obtained using a phase-space model. The limit changes to <2.0E-4 using a photon pole amplitude model.


pdgid: S032S52
text:
This FREYBERGER 1996 limit is obtained using a phase-space model. The limit changes to <1.0E-3 using a photon pole amplitude model.


pdgid: S032S54
text:
LEES 2020A quotes separate limits B(D0 --> eta e+- mu-+, eta --> gamma gamma) < 24.0E-7 and B(D0 --> eta e+- mu-+, eta --> pi+ pi- pi0) < 43.0E-7.


pdgid: S032S55
text:
This FREYBERGER 1996 limit is obtained using a phase-space model. The limit changes to <5.0E-5 using a photon pole amplitude model.


pdgid: S032S56
text:
This FREYBERGER 1996 limit is obtained using a phase-space model. The same limit is obtained using a photon pole amplitude model.


pdgid: S032S57
text:
This FREYBERGER 1996 limit is obtained using a phase-space model. The limit changes to <3.3E-5 using a photon pole amplitude model.


pdgid: S032EFL
text:
ABLIKIM 2024CO also reports the measurement of the strong phase difference between D0 and Dbar0 decays in bins of the phase space.


pdgid: S032EFL
text:
A combination of three consistent measurements with CP-eigenstate, quasi-CP-eigenstate and CP-mixed tags.


pdgid: S032EFL
text:
MALDE 2015 and DARGENT 2017 use different CLEO data sets, so in principle their results could be averaged. However, given the importance that model-independence has in the use of this value, we exclude the amplitude model-derived result from the average.


pdgid: S032A96
text:
A combined measurement of the CP-even fraction using both CP tags and K_S,L()0 pi+ pi- tags. ABLIKIM 2023AJ reports CP-even fractions 0.704+-0.042+-0.028 and 0.798+-0.077+-0.019 for  the former and latter tags, respectively.


pdgid: S032A1
text:
AAIJ 2023AC result comes from 5.7 fb**-1 of data. Also reports the values of the direct CP asymmetries, a(pi pi)**CP = 23.2+-6.1E-4 and a(KK)**CP = 7.7+-5.7E-4, with a correlation of 88%, obtained using previous determinations of A(CP)(K K), DeltaA(CP), DeltaY, the reconstructed mean decay times of D0 --> pi pi and D0 --> K K in the aforementioned measurements, and the world average of the D0 lifetime  (PDG 2022).


pdgid: S032A1
text:
STARIC 2008 uses D0 --> K- pi+ and Dbar0 --> K+ pi- decays to correct for detector-induced asymmetries.


pdgid: S032A1
text:
AITALA 1998C, LINK 2000B, CSORNA 2002, and ACOSTA 2005C measure N(D0 --> K+ K-)/N(D0 --> K- pi+), the ratio of numbers of events observed, and similarly for the Dbar0.


pdgid: S032A8
text:
HAYRAPETYAN 2024BB reports a value of 6.3+-3.0+-0.2+-0.8E-2 where the third uncertainty is from the world-average value of A(CP)(K0S pi+ pi-) = 0.1+-0.8%. We have added the systematic uncertainties in quadrature.


pdgid: S032A8
text:
AAIJ 2021X reports a value of -3.1+-1.2+-0.4+-0.2E-2 where the third uncertainty  is from A(CP)(K+ K-) = 0.04+-0.12+-0.10%, as measured by LHCb. We have added the systematic uncertainties in quadrature. Supersedes AAIJ 2018AV.


pdgid: S032A8
text:
The systematic uncertainty is dominated by the uncertainty on A(CP) in the control channel D0 --> KS pi0.


pdgid: S032A4
text:
AAIJ 2017M value combines DeltaA(CP)(pi pi, K K) from AAIJ 2016D, A(CP)(K K) from AAIJ 2017M, and A(CP)(pi pi) from AAIJ 2014AK.


pdgid: S032A4
text:
AITALA 1998C, LINK 2000B, CSORNA 2002, and ACOSTA 2005C measure N(D0 --> pi+ pi-)/N(D0 --> K- pi+), the ratio of numbers of events observed, and similarly for the Dbar0.


pdgid: S032A5
text:
Based on 3 fb**-1 of data collected at sqrt(s) = 7, 8 TeV. Allowing for CP violation, the direct CP-violation in mixing is reported for the D0 --> K+ pi- and Dbar0 --> K+ pi-.


pdgid: S032A5
text:
This AUBERT 2003Z limit assumes no mixing. If mixing is allowed, the 95% confidence-level interval is (-2.8~<A(D)<~4.9)x10**-3.


pdgid: S032A5
text:
This GODANG 2000 result assumes no D0-Dbar0 mixing and becomes -0.43<A(CP)<+0.34 at 95% CL. If mixing is allowd A(CP) = -0.01+0.16-0.17+-0.01.


pdgid: S032A72
text:
ABLIKIM 2022B uses quantum correlations in e+ e- --> D0 Dbar0 at the psi(3770) to  measure the asymmetry of the branching fraction of D0 --> K- pi+ in CP-odd and  CP-even eigenstates. It then extracts the strong-phase difference delta(K pi).


pdgid: S032A72
text:
ABLIKIM 2022B uses quantum correlations in e+ e- --> D0 Dbar0 at the psi(3770) to   measure the asymmetry of the branching fraction of D0 --> K- pi+ in CP-odd and   CP-even eigenstates, using the predominantly CP-even decay D0 --> pi+ pi- pi0 mode as   reference. It then extracts the strong-phase difference delta(K pi).


pdgid: S032A72
text:
ABLIKIM 2014C uses quantum correlations in e+ e- --> D0 Dbar0 at the psi(3770) to measure the asymmetry of the branching fraction of D0 --> K- pi+ in CP-odd and CP-even eigenstates. It then extracts the strong-phase difference delta(K pi). Superseded by ABLIKIM 2022BM.


pdgid: S032A6
text:
KOPP 2001 fits separately the D0 and Dbar0 Dalitz plots and then calculates the integrated difference of normalized densities divided by the integrated sum.


pdgid: S032A10
text:
This is the overall result of AALTONEN 2012AD. Following are the 15 CP fit-fraction asymmetries from the amplitude analysis of the D0 and Dbar0 --> K0S pi+ pi- Dalitz plots.


pdgid: S032A10
text:
This is the overall result of ASNER 2004A; CP-violating limits are also given below for each of the 10 resonant submodes found in an amplitude analysis of the D0 and Dbar0 --> K0S pi+ pi- Dalitz plots.


pdgid: S032D54
text:
SANGAL 2023 also measures the parity asymmetry A(T) in the sign of the triple product of momenta between one K(S)0 (the one with higher momentum) and the two charged pions, and reports the resulting CP asymmetry between the CP conjugate modes (A(T) - Abar(T))/2 = -1.95+-1.42+0.14-0.12E-2.


pdgid: S032C77
text:
Supersedes AAIJ 2018I. This analysis provides the first complete angular analysis of D0 --> K+ K- mu+ mu-,  and measures angular moments for several bins in the dimuon invariant mass. The mass of the  dihadron system is required to be less than 1200 MeV.


pdgid: S032C78
text:
Supersedes AAIJ 2018I. This analysis provides the first complete angular analysis of D0 --> pi+ pi- mu+ mu-,  and measures angular moments for several bins in the dimuon invariant mass. The mass of the  dihadron system is required to be less than 1200 MeV.


pdgid: S032DCP
text:
Calculated from the AUBERT 2008M values of A(CP)(K+ K-) and A(CP)(pi+ pi-). The systematic error here combines the systematic errors in quadrature, and therefore somewhat over-estimates it.


pdgid: S032L01
text:
Unusually, AAIJ 2015A assigns an uncertainty on the p value of +-0.5%. This results from limited test statistics.


pdgid: S032TV0
text:
KIM 2019 also study CP-violating asymmetries in several other kinematic variables. No evidence for CP violation is found in any of them.


pdgid: S032C76
text:
PRASANTH 2017 also measures A(Tviol) in sub-regions of the D0 --> K0S pi+ pi- pi0 phase-space. No evidence of T violation is found.


pdgid: S032CPT
text:
The constraints are derived by reinterpreting the LHCb measurement of the time-dependent asymmetry in the Cabibbo-favored D0 --> K- pi+ and Dbar0 --> K+ pi- decay rates. These constraints can be directly translated into the flavor eigenstate decay width difference deltaGamma = Gamma(D0) - Gamma(Dbar0) by the relation deltaGamma = (yRe(z) - xIm(z)) x 2Gamma, yielding (-4.7 < deltaGamma < 2.1) x E-16 GeV at 95% CL.


pdgid: S032FP0
text:
LEES 2015F reports a value 0.1374+-0.0038+-0.0022+-0.0009, where the last uncertainty is due to the uncertainties of the D0 --> K- pi+ branching fraction.


pdgid: S032PWA
text:
AAIJ 2019C also provides measurements of CP violation in D0 --> K+ K- pi+ pi-, with results compatible with CP symmetry.


pdgid: M061DM
text:
Obtained by analyzing CLEO-c data but not authored by the CLEO Collaboration. This value comes from the average of the results for two decay modes, D0 --> K- pi+ and D0 --> K- pi+ pi- pi+.


pdgid: M061R2
text:
Derived from the ratio Gamma(D0 pi0) / Gamma(D0 gamma) assuming that the branching fractions of D^*()0 --> D0 pi0 and D^*()0 --> D0 gamma decays sum to 100%.


pdgid: M061R2
text:
The BUTLER 1992 and ALBRECHT 1995F branching ratios are not independent, they have been constrained by the authors to sum to 100%.


pdgid: M061R01
text:
AAIJ 2023D reports <2.6E-8 from a measurement of [G(D^*(2007)0 --> mu+ mu-)/G(total)] * [B(B+ --> Dbar^*(2007)0 pi+)] assuming B(B+ --> Dbar^*(2007)0 pi+) = 4.90+-0.17E-3, which we rescale to our best value B(B+ --> Dbar^*(2007)0 pi+) = 5.17E-3. The reported value also assumes B(B- --> J/psi(1S) K-) = 10.20+-0.19E-4 and B(J/psi(1S) --> mu+ mu-) = 59.61+-0.33E-3 for the normalization mode B- --> J/psi(1S) K-.


pdgid: M062M
text:
From simultaneous fit to D^*(2010)+, D^*(2007)0, D+, and D0; not independent of FELDMAN 1977B mass difference below.


pdgid: M062M
text:
PERUZZI 1977 mass not independent of FELDMAN 1977B mass difference below and PERUZZI 1977 D0 mass value.


pdgid: M062EM
text:
Not independent of FELDMAN 1977B mass difference above, PERUZZI 1977 D0 mass, and GOLDHABER 1977 D^*(2007)0 mass.


pdgid: M062R2
text:
Not independent of G(D^*(2010)+ --> D0 pi+)/G(total) and [G(D^*(2010)+ --> D+ pi0)/G(total) measurement.


pdgid: M252M
text:
From the Dalitz plot analysis including various K^* and D^** mesons as well as broad structures in the K pi S-wave and the D pi S- and P-waves.


pdgid: M253M
text:
From the combined fit of the M(D+ pi-) and M(D^*()+ pi-) distributions. and A(D_{{2}}) fixed to the theoretical prediction of -1.


pdgid: M253M
text:
From the fit of the M(D0 pi+) distribution. The widths of the D_{{1}}()+ and D_{{2}}^*()+ are fixed to 25 MeV and 37 MeV, and A(D_{{1}}()) and A(D_{{2}}()) are fixed to the theoretical predictions of 3 and -1, respectively.


pdgid: M253M
text:
Calculated using the mass difference m(D_{{1}}^0()) - m(D^*()+)(PDG) reported below and m(D^*()+)(PDG) = 2010.27+-0.17 MeV. The 0.17 MeV uncertainty of the PDG mass value should be added to the experimental uncertainty of 0.9 MeV.


pdgid: M253PAH
text:
From the combined fit of the M(D+ pi-) and M(D^*()+ pi-) distributions. and A(D_{{2}}) fixed to the theoretical prediction of -1. A pure D-wave not excluded although some S-wave mixing possible.


pdgid: M253PAH
text:
Assuming Gamma(Upsilon(4S) --> B+ B-) / Gamma(Upsilon(4S) --> B0 Bbar0) = 1.065+-0.026 and equal partial widths and helicity angle distributions for charged and neutral D_{{1}}() mesons.


pdgid: M254M
text:
From the amplitude analysis in the model describing the D+ pi- wave together with virtual contributions from the D^*(2007)0 and B^*0() states, and components corresponding to the D_{{2}}^*(2460)0, D_{{1}}^*(2680)0, D_{{3}}^*(2760)0, and D_{{2}}^*(3000)0 resonances.


pdgid: M254M
text:
From the amplitude analysis in the model describing the D+ pi- wave together with virtual contributions from the D^*(2007)0 and B^*()0 states, nonresonant spin-0 and spin-1 components as well as the D_{{0}}^*(2400)0, D_{{2}}^*(2460)0 and D_{{1}}^*(2760)0 resonances.


pdgid: M254M
text:
Calculated using the mass difference m(D_{{2}}^*()0) - m(D^*()+)(PDG) reported below and m(D^*()+)(PDG) = 2010.27+-0.17 MeV. The 0.17 MeV uncertainty of the PDG mass value should be added to the experimental uncertainty of +1.2 MeV.


pdgid: M254M
text:
Fit includes the contribution from D_{{0}}^*(2400)+-. Not independent of the corresponding mass difference measurement, (mass(D_{{2}}^*(2460)+-)) - (mass(D_{{2}}^*(2460)0)).


pdgid: M254R01
text:
Assuming Gamma(Upsilon(4S) --> B+ B-) / Gamma(Upsilon(4S) --> B0 Bbar0) = 1.065+-0.026 and equal partial widths for charged and neutral D_{{2}}^*() mesons.


pdgid: M203PAM
text:
Systematic uncertainties not estimated. The states observed in the D^*() pi and D pi final states are not necessarily the same.


pdgid: S034T
text:
This AAIJ 2017AN value is derived from the difference between the D_{{s}}()- and D- widths. The 3rd uncertainty, +-1.7E-15 s, arises from the uncertainty of the D- width.


pdgid: S034R28
text:
ABLIKIM 2021AC finds that the ratio of the D_{{s}}()+ and D0 semielectronic widths is 0.790+-0.016+-0.020.


pdgid: S034R28
text:
ABLIKIM 2021AC reports a value of 6.30+-0.13+-0.09+-0.04E-2, where the last uncertainty is an external systematic from B(D_s()+ --> tau nu). We have added the systematic uncertainties in quadrature.


pdgid: S034R28
text:
Using the D_{{s}}()+ and D0 lifetimes, ASNER 2010 finds that the ratio of the D_{{s}}()+ and D0 semileptonic widths is 0.828+-0.051+-0.025.


pdgid: S034R7
text:
ABLIKIM 2016O also reports that when constrained by the Standard Model ratio of Gamma(D_s()+ --> tau+ nu_tau)/Gamma(D_s()+ --> mu+ nu_mu) = 9.76, the branching fraction is found to be (0.495+-0.067+-0.026)%. The constrained value is used to obtain the decay constant, f(D_{{s}}()+) = (241.0+-16.3+-6.6) MeV.


pdgid: S034R7
text:
DEL-AMO-SANCHEZ 2010J uses mu+ nu_mu and tau+ nu_tau events together to get f(D_{{s}}) = (258.6+-6.4+-7.5) MeV.


pdgid: S034R7
text:
PEDLAR 2007A also fits mu+ and tau+ events together and gets an effective mu+ nu_mu branching fraction of (6.38+-0.59+-0.33)xE-3


pdgid: S034R7
text:
This HEISTER 2002I result is not actually an independent measurement of the absolute mu+ nu_mu branching fraction, but is in fact based on our phi pi+ branching fraction of 3.6+-0.9%, so it cannot be included in our overall fit. HEISTER 2002I combines its D_s+ --> tau+ nu_tau and mu+ nu_mu branching fractions to get f(D_{{s}})= (285+-19+-40) MeV.


pdgid: S034R50
text:
AUBERT 2007V gets f(D_{{s}}()+)= (283+-17+-16) MeV, using Gamma(D_s()+ --> phi pi+)/Gamma(total) = (4.71+-0.46)%.


pdgid: S034R50
text:
ALEXANDROV 2000 uses f(D)**2/f(D_{{s}})**2 = 0.82+-0.09 from a lattice-gauge-theory calculation to get the relative numbers of D+ --> mu+ nu_mu and D_s()+ --> mu+ nu_mu events. The present result leads to f(D_{{s}})= (323+-44+-36) MeV.


pdgid: S034R50
text:
CHADHA 1998 obtains f(D_{{s}}) = (280+-19+-28+-34) MeV from this measurement, using Gamma(D_s()+ --> phi pi+)/Gamma(total) = 0.036+-0.009.


pdgid: S034R50
text:
ACOSTA 1994 obtains f(D_{{s}}) = (344+-37+-52+-42) MeV from this measurement, using Gamma(D_s()+ --> phi pi+)/Gamma(total) = 0.037+-0.009.


pdgid: S034R76
text:
ABLIKIM 2016O also reports that when constrained by the Standard Model ratio of Gamma(D_s()+ --> tau+ nu_tau)/Gamma(D_s()+ --> mu+ nu_mu) = 9.76; the branching fraction is found to be (4.83+-0.65+-0.26)%.


pdgid: S034R76
text:
DEL-AMO-SANCHEZ 2010J (with a small correction; see LEES 2015D) uses mu+ nu_mu and tau+ nu_tau events together to get f(D_{{s}}) = (259.9+-6.6+-7.6) MeV.


pdgid: S034R76
text:
ALEXANDER 2009, NAIK 2009A, and ONYISI 2009 use different tau decay modes and are independent. The three papers combined give f(D_{{s}}) = (259.7+-7.8+-3.4) MeV.


pdgid: S034R76
text:
ABLIKIM 2021BE uses tau+ --> pi+ nubar_tau decays. When constrained by the Standard Model ratio of Gamma(D_s()+ --> tau+ nu_tau)/Gamma(D_s()+ --> mu+ nu_mu) = 9.75, the branching fraction is found to be (5.22+-0.10+-0.14)%. Superseded by ABLIKIM 2023BP.


pdgid: S034R76
text:
ECKLUND 2008 and PEDLAR 2007A are independent: ECKLUND 2008 uses tau+ --> e+ nu_e nubar_tau events, PEDLAR 2007A uses tau+ --> pi+ nubar_tau events.


pdgid: S034R76
text:
HEISTER 2002I combines its D_s+ --> tau+ nu_tau and mu+ nu_mu branching fractions to get f(D_{{s}})= (285+-19+-40) MeV.


pdgid: S034R76
text:
The second ACCIARRI 1997F error here combines in quadrature systematic (0.016) and normalization (0.018) errors. The branching fraction gives f(D_{{s}}) = (309+-58+-33+-38) MeV.


pdgid: S034S20
text:
This ECKLUND 2008 value also uses results from PEDLAR 2007A, and it is not independent of other results in these Listings. Combined with earlier CLEO results, the decay constant f(D_{{s}}) is 274+-10+-5 MeV.


pdgid: S034S23
text:
This AUBERT 2008AN ratio is only for the K+ K- mass in the range 1.01-to-1.03 GeV in the numerator and 1.0095-to-1.0295 GeV in the denominator.


pdgid: S034R71
text:
BRANDENBURG 1995 uses both e+ and mu+ events and makes a phase-space adjustment to use the mu+ events as e+ events.


pdgid: S034P54
text:
Assuming B(f_0() --> pi0 pi0) = 1/3 via the isospin limit, this result implies B(D_s()+ --> f_0(980) e+ nu_e) = 2.4+-0.4E-3.


pdgid: S034S48
text:
HIETALA 2015 uses a tighter cut on the reconstructed pi+ pi- mass (+-60 MeV around the f0) than ECKLUND 2009. It finds that applying the same tight cut to both analyses gives consistent results.


pdgid: S034Q01
text:
Partial wave analysis of 939 D_s()+ --> K+ K- mu+ nu_mu events, assuming K+ K- S-wave is 100% f_{{0}}(980).


pdgid: S034S71
text:
ZUPANC 2013 finds the Kbar0 from its missing-mass squared, not from K0S --> pi+ pi-. The DCS (D_s()+ --> K+ K0) contribution to this fraction is estimated to be an order of magnitude below the statistical uncertainty.


pdgid: S034R6
text:
This AUBERT 2006N measurement uses Bbar0 --> D_s^(*)()- D^(*)()+ and B- --> D_s^(*)()- D^(*)()0 decays, including some from other papers. However, the result is independent of AUBERT 2005V.


pdgid: S034R6
text:
AUBERT 2005V uses the ratio of B0 --> D^*()- D_s^*()+ events seen in two different ways, in both of which the D^*()- --> Dbar()0 pi- decay is fully reconstructed: (1) The D_s^*()+ --> D_s()+ gamma, D_s()+ --> phi pi+ decay is fully reconstructed. (2) The number of events in the D_{{s}}()+ peak in the missing mass spectrum against the D^*()- gamma is measured.


pdgid: S034R6
text:
ARTUSO 1996 uses partially reconstructed Bbar0 --> D^*()+ D_s^*()- decays to get a model-independent value for Gamma(D_s()- --> phi pi-)/Gamma(D0 --> K- pi+) of 0.92+-0.20+-0.11.


pdgid: S034R6
text:
BAI 1995C uses e+ e- --> D_s()+ D_s()- events in which one or both of the D_{{s}}()+- are observed to obtain the first model-independent measurement of the D_s()+ --> phi pi+ branching fraction, without assumptions about sigma(D_{{s}}()+-). However, with only two ``doubly-tagged'' events, the statistical error is very large.


pdgid: S034P85
text:
ABLIKIM 2022AH observe an a_{{0}}()-like state with mass mass(a_{{0}}()) = 1.817+-0.008+-0.020  GeV,  and name the intermediate resonance a_{{0}}(1817). We interpret this as the a_{{0}}(1710)  observed by LEES 2021A.


pdgid: S034P65
text:
Based on isospin considerations, the authors interpret the suppression in the observed rate of this  mode compared to D_S()+ --> f_0(980) pi+, f_0() --> K+ K- as likely due to the destructive  interference between a_{{0}}(980) and f_{{0}}(980) in decays to KS KS.


pdgid: S034S03
text:
ABLIKIM 2021U uses an amplitude analysis of D_s()+ --> K+ K- pi+ pi0 with 9 components. Superseded by ABLIKIM 2024BD.


pdgid: S034P24
text:
Kbar_1(1270)0 --> K^*(892) pi denotes a sum over Kbar(892)0 pi0 and K(892)- pi+ final states, which are assumed to have relative branching ratio 1/2, as per isospin.


pdgid: S034P26
text:
Kbar_1(1400)0 --> K^*(892) pi denotes a sum over Kbar(892)0 pi0 and K(892)- pi+ final states, which are assumed to have relative branching ratio 1/2, as per isospin.


pdgid: S034S13
text:
AAIJ 2023AN, ABLIKIM 2022BI, and AUBERT 2009O give the amplitude and phase of the  pi+ pi-  S-wave in bins of pi+ pi- invariant-mass. (50 bins for AAIJ 2023AN, 29  for ABLIKIM 2022BI and AUBERT 2009O.)


pdgid: S034R82
text:
FRABETTI 1997D calls this mode S(1475) pi+, but finds the mass and width of this S(1475) to be in excellent agreement with those of the f_{{0}}(1500).


pdgid: S034S17
text:
ABLIKIM 2025A reports [G(D_s()+ --> eta pi+)/G(total)] * [B(eta --> pi+ pi- pi0)] = 3.58+-0.21+-0.06E-3 which we divide by our best value B(eta --> pi+ pi- pi0) = 23.02+-0.25E-2. Our first error is their experiment's error and our second error is the systematic error from using our best value.


pdgid: S034P07
text:
Coherent sum of D_s()+ --> a_0()+ pi0 --> eta pi+ pi0 and D_s()+ --> a_0()0 pi+ --> eta pi+ pi0. ABLIKIM 2019BE find a_{{0}}(980)0-f(980) mixing effects negligibly small in this D_s()+ --> eta pi+ pi0 Dalitz plot analysis.


pdgid: S034R33
text:
This JESSOP 1998 fraction, when combined with other eta^' fractions, greatly overshoots the inclusive eta^' fraction. See the measurement just above, which fits nicely.


pdgid: S034P59
text:
Result of an amplitude analysis of D_s()+ --> pi+ pi0 eta^' which found that D_s()+ --> rho+ eta^' is the dominant decay mode, with other contributions negligible. No uncertainty is assigned to this 100% fit fraction; however, the fit fractions of non-resonant contributions are shown to be below 1%.


pdgid: S034S68
text:
An amplitude analysis in the same publication finds that D_s()+ --> rho+ eta^' is the only statistically significant contribution to this decay. Superseded by ABLIKIM 2024BD.


pdgid: S034P72
text:
ABLIKIM 2022BL reports [G(D_s()+ --> K+ omega)/G(D_s()+ --> K+ pi+ pi- pi0)] * [B(omega(782) --> pi+ pi- pi0)] = 9.7+-1.5+-0.6E-2 which we divide by our best value B(omega(782) --> pi+ pi- pi0) = 89.2+-0.7E-2. Our first error is their experiment's error and our second error is the systematic error from using our best value.


pdgid: S034P92
text:
ABLIKIM 2021AB uses an amplitude analysis with 5 resonant modes plus one background component. Superseded by ABLIKIM 2024BD.


pdgid: S034A37
text:
Amplitude analysis with 7 components, one of which is a model-independent pi+ pi- S-wave  parametrisation as complex numbers in 50 pi+ pi- mass bins.


pdgid: S034A37
text:
Amplitude analysis with 4 components, one of which is a model-independent pi+ pi- S-wave parametrisation as complex numbers in 29 pi+ pi- mass bins.


pdgid: S034A30
text:
ABLIKIM 2021BE also reports that when constrained by the Standard Model ratio of Gamma(D_s()+ --> tau+ nu_tau)/Gamma(D_s()+ --> mu+ nu_mu) = 9.75, the result is (-0.1+-1.9+-1.0)%.


pdgid: S034A05
text:
LEES 2013E finds that after subtracting the contribution due to K0-Kbar0 mixing, the CP asymmetry is (+0.28+-0.23+-0.24)%.


pdgid: S034A21
text:
AAIJ 2014BD reports its result as A(CP)(D_s()+- --> K0S K+-) with CP-violation effects in the K0-Kbar0 system subtracted. It also measures A(CP)(D+- --> Kbar0 / K0 K+-) + A(CP)(D_s()+- --> Kbar0 / K0 pi+-) = (0.41+-0.49+-0.26)%.


pdgid: S034FR2
text:
To compare with previous measurements, this AUBERT 2008AN value is from a fit that fixes the pole masses at mass(A) = 2.5 GeV/c**2 and mass(V) = 2.1 GeV/c**2. A simultaneous fit to r(2), r(v), r(0) (a significant s-wave contribution) and mass(A), gives r(2) = 0.763+-0.071+-0.065.


pdgid: S034FRV
text:
To compare with previous measurements, this AUBERT 2008AN value is from a fit that fixes the pole masses at mass(A) = 2.5 GeV/c**2 and mass(V) = 2.1 GeV/c**2. A simultaneous fit to r(2), r(v), r(0) (a significant s-wave contribution) and mass(A), gives r(v) = 1.849+-0.060+-0.095.


pdgid: S034A50
text:
From an analysis of D_s()+ --> pi+ pi- e+ mu_e decays. ABLIKIM 2024AT uses a simple pole parametrization of the hadronic form factor and the Flatte' formula for describing the f_{{0}}(980) decay.


pdgid: S034A29
text:
ABLIKIM 2024CG uses tau+ --> (e+ nu_e, mu+ nu_nu, pi+, rho+) nubar_tau decays. The third uncertainty is due to the uncertainty of the D_{{s}}()+ lifetime.


pdgid: S034A29
text:
ABLIKIM 2023BP uses tau+ --> pi+ nubar_tau decays. The third uncertainty is due to the input parameters, mainly the D_{{s}}()+ lifetime.


pdgid: S034A29
text:
The third uncertainty is dominated by the uncertainty of the D_{{s}}()+ lifetime. Superseded by ABLIKIM 2023BP.


pdgid: S034A29
text:
ABLIKIM 2021BE uses tau+ --> pi+ nubar_tau decays. When constrained by the Standard Model ratio  of Gamma(D_s()+ --> tau+ nu_tau)/Gamma(D_s()+ --> mu+ nu_mu) = 9.75, the result is  243.2+-2.3+-3.3+-1.0.


pdgid: M172M
text:
From a fit of the D_{{s}}^* recoil mass where the D_{{s0}}^*(2317) signal is described with a Crystal Ball function convolved with a Gaussian function.


pdgid: M173M
text:
The average of the values obtained from the D_s()+ gamma, D_s()+ pi0 gamma,D_s()+ pi+ pi- final state.


pdgid: M121M
text:
From a fit of the D_{{s}}()+ recoil mass distribution with an incoherent sum of the S-wave and D-wave Breit-Wigner line shapes.


pdgid: M121M
text:
Calculated using mass()(D^*(2010)+-) = 2010.0+-0.5 MeV, mass()(D^*(2007)0) = 2006.7+-0.5 MeV, and the mass difference below.


pdgid: M121M
text:
Calculated using the mass difference mass()(D_{{s1}}()+)- mass()(D^*()+)(PDG) below and mass()(D^*()+)(PDG) = 2010.25+-0.14 MeV. Assuming S-wave decay of the D_{{s1}}(2536) to D^*()+ K0S, using a Breit-Wigner line shape corresponding to L=0.


pdgid: M121M
text:
Calculated using the mass difference m(D_{{s1}}()+) - m(D^*()+)(PDG) reported below and m(D^*()+)(PDG) = 2010.27+-0.17 MeV.


pdgid: M121DN
text:
Assuming S-wave decay of the D_{{s1}}(2536) to D^*()+ K0S, using a Breit-Wigner line shape corresponding to L=0.


pdgid: M121W
text:
From a fit of the D_{{s}}()+ recoil mass distribution with an incoherent sum of the S-wave and S-wave Breit-Wigner line shapes.


pdgid: M121R01
text:
Determined as ratio of exclusive e+ e- --> D_s()+ [ Dbar^*()0 K- ] and inclusive e+ e- --> D_s()+ X measurements.


pdgid: M148R2
text:
Determined as ratio of exclusive e+ e- --> D_s()+ [ Dbar0 K- ] and inclusive e+ e- --> D_s()+ X measurements.


pdgid: M182M
text:
From the combined fit of the D+ K0S and D0 K+ modes in the model including the D_{{s2}}^*(2573)+, D_{{s1}}^*(2700)+ and spin-0 D_{{sJ}}^*(2860)+.


pdgid: M196M
text:
Separated from the spin-3 component D_{{s3}}^*(2860)- by a fit of the helicity angle of the  Dbar0 K- system, with a statistical significance of the spin-3 and spin-1 components in excess of 10 sigma.


pdgid: M196W
text:
Separated from the spin-3 component D_{{s3}}^*(2860)- by a fit of the helicity angle of the Dbar0 K- system, with a statistical significance of the spin-3 and spin-1 components in excess of 10 sigma.


pdgid: M226M
text:
Separated from the spin-1 component D_{{s1}}^*(2860)- by a fit of the helicity angle of the Dbar0 K- system, with a statistical significance of the spin-3 and spin-1 components in excess of 10 sigma.


pdgid: S041M
text:
CSORNA 2000 uses fully reconstructed 526 B+ --> J/psi^(') K+ events and invariant masses without beam constraint.


pdgid: S041M
text:
Found using fully reconstructed decays with J/psi(1S). ALBRECHT 1987D assume mass(Upsilon(4S)) = 10577 MeV.


pdgid: S041T
text:
Measured using B- --> D0 pi- with D0 --> K- pi+ events that were selected using a silicon vertex trigger.


pdgid: S041T
text:
Events are selected in which one B meson is fully reconstructed while the second B meson is reconstructed inclusively.


pdgid: S041S95
text:
URQUIJO 2007 report a measurement of (10.34+-023+-0.25)% for the partial branching fraction of B+ --> e+ nu_e X_c decay with electron energy above 0.6 GeV. We converted the result to B+ --> e+ nu_e X branching fraction.


pdgid: S041S95
text:
The measurements are obtained for charged and neutral B mesons partial rates of semileptonic decay to electrons with momentum above 0.6 GeV/c in the B rest frame. The best precision on the ratio is achieved for a momentum threshold of 1.0 GeV: B(B+ --> e+ nu_e X) / B(B0 --> e+ nu_e X) = 1.074+-0.041+-0.026.


pdgid: S041S95
text:
ARTUSO 1997 uses partial reconstruction of B --> D^* lepton nu_lepton and inclusive semileptonic branching ratio from BARISH 1996B (0.1049+-0.0017+-0.0043).


pdgid: S041S95
text:
The measurements are obtained for charged and neutral B mesons partial rates of semileptonic decay to electrons with momentum above 0.6 GeV/c in the B rest frame, and their ratio of B(B+ --> e+ nu_e X)/B(B0 --> e+ nu_e X) = 1.08+-0.05+-0.02.


pdgid: S041S00
text:
Measure the independent B+ and B0 partial branching fractions with electron threshold energies of 0.4 GeV.


pdgid: S041A53
text:
The correlation of 50% with B(B0 --> lepton+ nu_lepton X_u)(letpon energy in B rest  frame E(lepton)*** > 1 GeV) was reported.


pdgid: S041B04
text:
The relative branching fractions of B- --> D0, D^*()0, D^**()0 in the B- --> D0 X mu- nubar channel are determined by fitting the distribution of the missing mass in Bbar_s2^*()0 --> B- K+ decays.


pdgid: S041D23
text:
Measures the lepton in a primary decay of the signal B meson, while tagging the partner B in fully reconstructed hadronic decay modes.


pdgid: S041R69
text:
Measured using the dependence of B- --> D^*()0 e- nubar_e decay differential rate and the form factor description by CAPRINI 1998.


pdgid: S041R69
text:
ALBRECHT 1992C reports 0.058+-0.014+-0.013. We rescale using the method described in STONE 1994 but with the updated PDG 1994 B(D0 --> K- pi+). Assumes equal production of B0 Bbar0 and B+ B- at the Upsilon(4S).


pdgid: S041R69
text:
BARISH 1995 use B(D0 --> K- pi+) = (3.91+-0.08+-0.17)% and B(D^*()0 --> D0 pi0) = (63.6+-2.3+-3.3)%.


pdgid: S041R69
text:
Combining Dbar^*()0 lepton+ nu_lepton and Dbar^*()- lepton+ nu_lepton SANGHERA 1993 test V-A structure and fit the decay angular distributions to obtain A(FB) = 3/4*(Gamma**--Gamma**+)/Gamma = 0.14+-0.06+-0.03. Assuming a value of V(cb), they measure V, A(1), and A(2), the three form factors for the D^* lepton nu_lepton decay, where results are slightly dependent on model assumptions.


pdgid: S041R69
text:
Assumes equal production of B0 Bbar0 and B+ B- at the Upsilon(4S). Uncorrected for D and D^* branching ratio assumptions.


pdgid: S041B06
text:
In this measurement of f(D^**()0) = B(B- -->(D^**()0 --> D0 X)mu- nubar)/B(B- --> D0 X mu- nubar), D^**()0 refers collectively to L = 1 states D_{{0}}^*(2400), D_{{1}}(2420), D_{{1}}(2430), and D_{{2}}^*(2460), as well as other resonances such as radially excited D mesons, and to nonresonant contributions with additional pions.


pdgid: S041Q54
text:
LIVENTSEV 2008 reports 4.0+-0.4+-0.6E-3 from a measurement of [G(B+ --> D- pi+ lepton+ nu_lepton)/G(total)] / [B(B+ --> Dbar0 lepton+ nu_lepton)] assuming B(B+ --> Dbar0 lepton+ nu_lepton) = 2.15+-0.22E-2, which we rescale to our best value B(B+ --> Dbar0 lepton+ nu_lepton) = 2.26+-0.07E-2. Our first error is their experiment's error and our second error is the systematic error from using our best value.


pdgid: S041Q54
text:
LIVENTSEV 2005 reports [G(B+ --> D- pi+ lepton+ nu_lepton)/G(total)] / [B(B0 --> D- lepton+ nu_lepton)] = 0.25+-0.03+-0.03 which we multiply by our best value B(B0 --> D- lepton+ nu_lepton) = 2.10+-0.07E-2. Our first error is their experiment's error and our second error is the systematic error from using our best value.


pdgid: S041C07
text:
Uses a simultaneous fit of all B semileptonic decays without full reconstruction of events. AUBERT 2009Y reports B(B+ --> Dbar_2^*(2460)0 lepton+ nu_lepton). B(Dbar_2^*(2460)0 --> D^(*)()- pi+) = 2.29+-0.23+-0.21E-3 and the authors have provided us the individual measurement.


pdgid: S041Q55
text:
LIVENTSEV 2008 reports 6.4+-0.8+-0.9E-3 from a measurement of [G(B+ --> D^*()- pi+ lepton+ nu_lepton)/G(total)] / [B(B+ --> Dbar0 lepton+ nu_lepton)] assuming B(B+ --> Dbar0 lepton+ nu_lepton) = 2.15+-0.22E-2, which we rescale to our best value B(B+ --> Dbar0 lepton+ nu_lepton) = 2.26+-0.07E-2. Our first error is their experiment's error and our second error is the systematic error from using our best value.


pdgid: S041Q55
text:
LIVENTSEV 2005 reports [G(B+ --> D^*()- pi+ lepton+ nu_lepton)/G(total)] / [B(B0 --> D^*(2010)- lepton+ nu_lepton)] = 0.12+-0.02+-0.02 which we multiply by our best value B(B0 --> D^*(2010)- lepton+ nu_lepton) = 4.87+-0.09E-2. Our first error is their experiment's error and our second error is the systematic error from using our best value.


pdgid: S041T70
text:
STYPULA 2012 provides also an upper limit of 0.56E-3 at 90% CL for the same data. Also measures branching fraction of the combined modes of D_s()- K+ lepton+ nu_lepton and D_s^*()- K+ lepton+ nu_lepton as B(B+ --> D_s^(*)()- K+ lepton+ nu_lepton) = 5.9+-1.2+-1.5E-4.


pdgid: S041Q53
text:
Uses loose neutrino reconstruction technique. Assumes B(Y(4S) --> B+ B-) = (51.6+-0.6)% and B(Y(4S) --> B0 Bbar0) = (48.4+-0.6)%.


pdgid: S041Q53
text:
The signal events are tagged by a second B meson reconstructed in the semileptonic mode B --> D^(*)() lepton nu_lepton.


pdgid: S041Q53
text:
B+ and B0 decays combined assuming isospin symmetry. Systematic errors include both experimental and form-factor uncertainties.


pdgid: S041R70
text:
Derived based in the reported B0 result by assuming isospin symmetry: Gamma(B0 --> pi- lepton+ nu)= 2Gamma(B+ --> pi0 lepton+ nu).


pdgid: S041T10
text:
Uses loose neutrino reconstruction technique. Assumes B(Upsilon(4S) --> B+ B-) = (51.6+-0.6)% and B(Upsilon(4S) --> B0 Bbar0) = (48.4+-0.6)%.


pdgid: S041T10
text:
The B0 and B+ results are combined assuming the isospin, B lifetimes, and relative charged/neutral B production at the Upsilon(4S).


pdgid: S041T10
text:
ATHAR 2003 reports systematic errors 0.16+-0.09, which are experimental systematic and systematic due to model dependence. We combine these in quadrature.


pdgid: S041Q88
text:
The B0 and B+ results are combined assuming the isospin, B lifetimes, and relative charged/neutral B production at the Upsilon(4S). Corresponds to 90% CL interval (1.20 -- 4.46)xE-4.


pdgid: S041S47
text:
LEES 2013A reports 1.21+-0.14+-0.08E-4 from a measurement of [G(B+ --> omega lepton+ nu_lepton)/G(total)] * [B(omega(782) --> pi+ pi- pi0)] assuming B(omega(782) --> pi+ pi- pi0) = 89.2+-0.7E-2.


pdgid: S041S47
text:
Uses semileptonic tagging. Assumes B(omega --> pi+ pi- pi0) = (89.2+-0.7)% and that the production ratio of B+ B- to B0 Bbar0 from Upsilon(4S) is 1.056+-0.028. The partial branching fractions in three bins of q**2 are also reported.


pdgid: S041S47
text:
BEAN 1993B limit set using ISGW Model. Using isospin and the quark model to combine Gamma(rho0 lepton+ nu_lepton) and Gamma(rho- lepton+ nu_lepton) with this result, they obtain a limit <(1.6 -- 2.7)*10**-4 at 90% CL for B+ --> omega lepton+ nu_lepton. The range corresponds to the ISGW, WSB, and KS models. An upper limit on |V(ub)/V(cb)| <0.8 -- 0.13 at 90% CL is derived as well.


pdgid: S041S48
text:
Derived based in the reported B0 result by assuming isospin symmetry: Gamma(B0 --> rho- lepton+ nu)= 2Gamma(B+ --> rho0 lepton+ nu)~~ 2Gamma(B+ --> omega lepton+ nu).


pdgid: S041S48
text:
BEAN 1993B limit set using ISGW Model. Using isospin and the quark model to combine Gamma(omega0 lepton+ nu_lepton) and Gamma(rho- lepton+ nu_lepton) with this result, they obtain a limit <(1.6 -- 2.7)*10**-4 at 90% CL for B+ --> rho0 lepton+ nu_lepton. The range corresponds to the ISGW, WSB, and KS models. An upper limit on |V(ub)/V(cb)| <0.8 -- 0.13 at 90% CL is derived as well.


pdgid: S041P88
text:
AAIJ 2020K reports [G(B+ --> p pbar mu+ nu_mu)/G(B+ --> J/psi(1S) K+)] / [B(J/psi(1S) --> mu+ mu-)] = 8.75+-0.39+-0.35E-2 which we multiply by our best value B(J/psi(1S) --> mu+ mu-) = 5.961+-0.033E-2. Our first error is their experiment's error and our second error is the systematic error from using our best value.


pdgid: S041S56
text:
This is a 90% C.L. upper limit in the frequentist approach. The corresponding upper limit in the Bayesian approach is <8.9E-7. A 2.8 standard deviation signal above the background is found, with a measured branching fraction 5.3+-2.0+-0.9E-7.


pdgid: S041S56
text:
This is a 90% confidence interval in the frequentist approach. A 2.4 standard deviation signal above the background is found, with a measured branching fraction 6.46+-2.22+-1.60E-7.


pdgid: S041S57
text:
The authors combine their result with that from HARA 2010 obtaining B(B- --> tau- nubar_tau)=0.96+-0.26E-4 and deriving f_{{B}} |V_(ub)|=7.4+-0.8+-0.5E-4 GeV.


pdgid: S041S57
text:
Requires a fully reconstructed hadronic B-decay in the recoil. Reports that this result combined with AUBERT 2010E value gives B(B- --> tau- nubar_tau) = 1.79+-0.48E-4.


pdgid: S041S57
text:
Requires one reconstructed semileptonic B decay B- --> D^(*)()0 lepton- nubar_lepton X in the recoil.


pdgid: S041S57
text:
The analysis is based on a sample of events with one fully reconstructed tag B in a hadronic decay mode B- --> D^(*)()0 X-.


pdgid: S041S57
text:
BUSKULIC 1995 uses same missing-energy technique as in bbar --> tau+ nu_tau X, but analysis is restricted to endpoint region of missing-energy distribution.


pdgid: S041B9
text:
BROWDER 1997 uses the hermiticity of the CLEO II detector to reconstruct the neutrino energy and momentum.


pdgid: S041B10
text:
Note that the value given by AUBERT 2009AT is 24E-6 in the paper abstract, and 26E-6 in the paper itself (Table I).


pdgid: S041P68
text:
AAIJ 2019P limit established for the kinematic region where the lower of the two M(mu+ mu-) is less than 980 MeV/c**2.


pdgid: S041Q24
text:
Events are selected by completely reconstructing one B and searching for a reconstructed charmed particle in the rest of the event. The last error includes systematic and charm branching ratio uncertainties.


pdgid: S041R1
text:
ABULENCIA 2006J reports [G(B+ --> Dbar0 pi+)/G(total)] / [B(B0 --> D- pi+)] = 1.97+-0.10+-0.21 which we multiply by our best value B(B0 --> D- pi+) = 2.51+-0.08E-3. Our first error is their experiment's error and our second error is the systematic error from using our best value.


pdgid: S041R1
text:
AHMED 2002B reports an additional uncertainty on the branching ratios to account for 4.5% uncertainty on relative production of B0 and B+, which is not included here.


pdgid: S041R1
text:
Assumes equal production of B+ and B0 at the Upsilon(4S) and uses the Mark III branching fractions for the D.


pdgid: S041R1
text:
BEBEK 1987 value has been updated in BERKELMAN 1991 to use same assumptions as noted for BORTOLETTO 1992.


pdgid: S041R1
text:
AUBERT,B 2004P reports [G(B+ --> Dbar0 pi+)/G(total)] * [B(D0 --> K- pi+)] = 1.846+-0.032+-0.097E-4 which we divide by our best value B(D0 --> K- pi+) = 3.945+-0.030E-2. Our first error is their experiment's error and our second error is the systematic error from using our best value.


pdgid: S041R1
text:
ALAM 1994 assume equal production of B+ and B0 at the Upsilon(4S) and use the CLEO II absolute B(D0 --> K- pi+) and the PDG 1992 B(D0 --> K- pi+ pi0)/B(D0 --> K- pi+) and B(D0 --> K- 2pi+ pi-)/B(D0 --> K- pi+).


pdgid: S041B97
text:
Reports a double ratio of B(B+ --> D_CP(+1)() K+ )/B(B+ --> D_CP(+1)() pi+) and B(B+ --> Dbar0 K+ )/B(B+ --> Dbar0 pi+), 1.13+-0.16+-0.08. We multiply by our best value of B(B+ --> Dbar0 K+ )/B(B+ --> Dbar0 pi+) = 0.083+-0.006. Our first error is their experiment's error and the second error is systematic error from using our best value.


pdgid: S041B97
text:
ABE 2006 reports [G(B+ --> D_CP(+1) K+)/G(B+ --> D_CP(+1) pi+)] / [[G(B+ --> Dbar0 K+)G(B+ --> Dbar0 pi+)]] = 1.13+-0.06+-0.08 which we multiply by our best value [G(B+ --> Dbar0 K+)]G(B+ --> Dbar0 pi+)] = 0.0789+-0.0027. Our first error is their experiment's error and our second error is the systematic error from using our best value.


pdgid: S041C18
text:
Reports R(CP+) = 2 (B(B- --> D_CP(+1)() K-) + B(B+ --> D_CP(+1)() K+)) / (B(B- --> D0 K-) + B(B+ --> Dbar0 K+)) = 1.30+-0.24+-0.12 that we have divided by 2.


pdgid: S041B98
text:
Reports a double ratio of B(B+ --> D_CP(-1)() K+ )/B(B+ --> D_CP(-1)() pi+) and B(B+ --> Dbar0 K+ )/B(B+ --> Dbar0 pi+), 1.17+-0.14+-0.14. We multiply by our best value of B(B+ --> Dbar0 K+ )/B(B+ --> Dbar0 pi+) = 0.083+-0.006. Our first error is their experiment's error and the second error is systematic error from using our best value.


pdgid: S041B98
text:
CP=-1 eigenstate of D0 Dbar0 system is reconstructed via K0S pi0, K0S omega, K0S phi, K0S eta, and K0S eta^'.


pdgid: S041Q12
text:
AAIJ 2021Q reports the charge-averaged rate, where the statistical and systematic uncertainties have been combined according to the correlations between the observables. The individual ratio of B- --> [ K+ pi- ]_D K- and B- --> [ K- pi+ ]_D K- and the ratio of B+ --> [ K- pi+ ]_D K+ and B+ --> [ K+ pi- ]_D K+ are also reported to be 9.5+-0.5+-0.3E-3 and 25.2+-0.8+-0.4E-3, respectively.


pdgid: S041Q12
text:
AALTONEN 2011AJ also measures the ratio separately for B+ (R**+(K)) and B- (R**-(K)) and obtains: R**+(K) = 42.6+-13.7+-2.8E-3, R**-(K) = 3.8+-10.3+-2.7E-3.


pdgid: S041Q12
text:
AUBERT 2005G extract a constraint on the magnitude of the ratio of amplitudes |A(B+ --> D0 K+) / A(B+ --> Dbar0 K+)| < 0.23 at 90% CL (Bayesian). Similar measurements from B+ --> D^*()0 K+ are also reported.


pdgid: S041Q12
text:
SAIGO 2005 extract a constraint on the magnitude of the ratio of amplitudes |A(B+ --> D0 K+) / A(B+ --> Dbar0 K+)| < 0.27 at 90% CL.


pdgid: S041Q12
text:
AUBERT,B 2004L extract a constraint on the magnitude of the ratio of amplitudes |A(B+ --> D0 K+)/A(B+ --> Dbar0 K+)| < 0.22 at 90% CL.


pdgid: S041Q89
text:
Extracts a constraint on the magnitude of the ratio of amplitudes |A(B+ --> D0 K+)/ A(B+ --> Dbar0 K+)| < 0.13 at 95% CL.


pdgid: S041Q89
text:
Extracts a constraint on the magnitude of the ratio of amplitudes |A(B+ --> D0 K+)/ A(B+ --> Dbar0 K+)| < 0.19 at 95% CL.


pdgid: S041Q49
text:
AAIJ 2021Q gives the charge-averaged rate, where the statistical and systematic uncertainties have been combined according to the correlations between the observables. The individual ratio of B- --> [ K+ pi- ]_D K- and B- --> [ K- pi+ ]_D K- and the ratio of B+ --> [ K- pi+ ]_D pi+ and B+ --> [ K+ pi- ]_D pi+ are also reported to be 4.15+-0.08+-0.04E-3 and 3.20+-0.07+-0.04E-3, respectively.


pdgid: S041Q49
text:
AALTONEN 2011AJ also measures the ratio separately for B+ (R**+(pi)) and B- (R**-(pi)) and obtains: R**+(pi) = 2.4+-1.0+-0.4E-3, R**-(K) = 3.1+-1.1+-0.4E-3.


pdgid: S041QD0
text:
AAIJ 2021Q gives the charge-averaged rate, where the statistical and systematic uncertainties have been combined according to the correlations between the observables. The individual ratio of B- --> ([ K+ pi- ]_D pi0 )_D^* pi- to B- --> ([ K- pi+ ]_D pi0 )_D^* pi- and the ratio of B+ --> ([ K- pi+ ]_D pi0 )_D^* pi+ to B+ --> ([ K+ pi- ]_D pi0 )_D^* pi+, without inclusion of the neutral pion in the reconstruction, are also reported to be 4.05+-0.56+-0.59E-3 and 5.36+-0.56+-0.58E-3, respectively.


pdgid: S041QD1
text:
AAIJ 2021Q gives the charge-averaged rate, where the statistical and systematic uncertainties have been combined according to the correlations between the observables. The individual the ratio of B- --> ([ K+ pi- ]_D gamma )_D^* pi- to B- --> ([ K- pi+ ]_D gamma )_D^* pi- and the ratio of B+ --> ([ K- pi+ ]_D gamma )_D^* pi+ to B+ --> ([ K+ pi- ]_D gamma )_D^* pi+, without inclusion of the photon in the reconstruction, are also reported to be 4.72+-0.92+-1.18E-3 and 4.03+-0.91+-1.14E-3, respectively.


pdgid: S041QD2
text:
AAIJ 2021Q gives the charge-averaged rate, where the statistical and systematic uncertainties have been combined according to the correlations between the observables. The individual ratio of B- --> ([ K+ pi- ]_D pi0 )_D^* K- to B- --> ([ K- pi+ ]_D pi0 )_D^* K- and the ratio of B+ --> ([ K- pi+ ]_D pi0 )_D^* K+ to B+ --> ([ K+ pi- ]_D pi0 )_D^* K+, without inclusion of the neutral pion in the reconstruction, are also reported to be 20.2+-3.5+-2.3E-3 and 3.3+-3.5+-2.2E-3, respectively.


pdgid: S041QD3
text:
AAIJ 2021Q gives the charge-averaged rate, where the statistical and systematic uncertainties have been combined according to the correlations between the observables. The individual ratio of B- --> ([ K+ pi- ]_D gamma )_D^* K- to B- --> ([ K- pi+ ]_D gamma )_D^* K- and the ratio of B+ --> ([ K- pi+ ]_D gamma )_D^* K+ to B+ --> ([ K+ pi- ]_D gamma )_D^* K+, without inclusion of the photon in the reconstruction, are also reported to be 11.7+-21.5+-31.3E-3 and 29.2+-21.4+-31.2E-3, respectively.


pdgid: S041Q61
text:
The authors report R(CP-)= 1.03+-0.27+-0.13 which is, assuming CP conservation, twice the value of the quoted above branching ratio,


pdgid: S041Q61
text:
The authors report R(CP-)= 0.65+-0.26+-0.08 which is, assuming CP conservation, twice the value of the quoted above branching ratio.


pdgid: S041Q62
text:
Measures the ratio separately for K+ K- and pi+ pi- final states, R(K K) = 1.22+-0.09+-0.02 and R(pi pi) = 1.08+-0.14+-0.03, and combines the two results.


pdgid: S041Q62
text:
The authors report R(CP+)= 2.17+-0.35+-0.09 which is, assuming CP conservation, twice the value of the quoted above branching ratio,


pdgid: S041Q62
text:
Measures the ratio separately for K+ K- and pi+ pi- final states, R(K K) = 1.22+-0.09+-0.01 and R(pi pi) = 1.08+-0.14+-0.03, and combines the two results.


pdgid: S041Q62
text:
The authors report R(CP+)= 1.96+-0.40+-0.11 which is, assuming CP conservation, twice the value of the quoted above branching ratio.


pdgid: S041B64
text:
ADACHI 2024L reports 3.64+-0.32+-0.16E-4 from a measurement of [G(B+ --> Dbar0 K+ Kbar0)/G(total)] * [B(Upsilon(4S) --> B+ B-)] assuming B(Upsilon(4S) --> B+ B-) = 51.6+-1.2E-2, which we rescale to our best value B(Upsilon(4S) --> B+ B-) = 51.4+-0.6E-2. Our first error is their experiment's error and our second error is the systematic error from using our best value.


pdgid: S041B64
text:
DRUTSKOY 2002 reports 5.5+-1.4+-0.8E-4 from a measurement of [G(B+ --> Dbar0 K+ Kbar0)/G(total)] * [B(Upsilon(4S) --> B+ B-)] assuming B(Upsilon(4S) --> B+ B-) = 50+-0E-2, which we rescale to our best value B(Upsilon(4S) --> B+ B-) = 51.4+-0.6E-2. Our first error is their experiment's error and our second error is the systematic error from using our best value.


pdgid: S041R85
text:
BORTOLETTO 1992 assumes equal production of B+ and B0 at the Upsilon(4S) and uses Mark III branching fractions for the D.


pdgid: S041B54
text:
Assumes equal production of B+ and B0 at the Upsilon(4S). The signal is consistent with all observed omega pi+ having proceeded through the rho^'+ resonance at mass 1349+-25+10-5 MeV and width 547+-86+46-45 MeV.


pdgid: S041R2
text:
ALAM 1994 assume equal production of B+ and B0 at the Upsilon(4S) and use the CLEO II B(D^*(2010)+ --> D0 pi+) and absolute B(D0 --> K- pi+) and the PDG 1992 B(D0 --> K- pi+ pi0)/B(D0 --> K- pi+) and B(D0 --> K- 2pi+ pi-)/B(D0 --> K- pi+).


pdgid: S041R2
text:
BORTOLETTO 1992 assumes equal production of B+ and B0 at the Upsilon(4S) and uses Mark III branching fractions for the D and D^*(2010). The authors also find the product branching fraction into D^** pi followed by D^** --> D^*(2010) pi to be 0.0014+0.0008-0.0006+-0.0003 where D^** represents all orbitally excited D mesons.


pdgid: S041R2
text:
ALBRECHT 1987C use PDG 1986 branching ratios for D and D^*(2010) and assume B(Upsilon(4S) --> B+ B-) = 55% and B(Upsilon(4S) --> B0 Bbar0) = 45%. Superseded by ALBRECHT 1990J.


pdgid: S041P42
text:
The branching fraction of the normalization mode B+ --> D^*()- pi+ pi+ is rescaled to the updated ratio of Upsilon(4S) --> B+ B- to Upsilon(4S) --> B0 Bbar0 decay rates of 1.058+-0.024.


pdgid: S041C69
text:
AAIJ 2011E reports 9.3+-1.6+-0.9E-2 from a measurement of [G(B+ --> Dbar_1(2420)0 pi+, Dbar_1()0 --> D^*(2010)- pi+)/G(B+ --> Dbar0 pi+ pi+ pi-)] * [B(D^*(2010)+ --> D0 pi+)] assuming B(D^*(2010)+ --> D0 pi+) = 67.7+-0.5E-2.


pdgid: S041R14
text:
ALAM 1994 assume equal production of B+ and B0 at the Upsilon(4S) and use the Mark III B(D+ --> K- 2pi+).


pdgid: S041R14
text:
BORTOLETTO 1992 assumes equal production of B+ and B0 at the Upsilon(4S) and uses Mark III branching fractions for the D. The product branching fraction into D_0^*(2340) pi followed by D_0^*(2340) --> D pi is <0.005 at 90%CL and into D_{{2}}^*(2460) followed by D_2^*(2460) --> D pi is <0.004 at 90%CL.


pdgid: S041R14
text:
BEBEK 1987 assume the Upsilon(4S) decays 43% to B0 Bbar0. B(D- --> K+ pi- pi-) = (9.1+-1.3+-0.4)% is assumed.


pdgid: S041R15
text:
AUBERT,BE 2006J reports [G(B+ --> Dbar^*(2007)0 pi+)/G(total)] / [B(B+ --> Dbar0 pi+)] = 1.14+-0.07+-0.04 which we multiply by our best value B(B+ --> Dbar0 pi+) = 4.61+-0.10E-3. Our first error is their experiment's error and our second error is the systematic error from using our best value.


pdgid: S041R15
text:
BRANDENBURG 1998 assume equal production of B+ and B0 at Upsilon(4S) and use the D^* reconstruction technique. The first error is their experiment's error and the second error is the systematic error from the PDG 1996 value of B(D^* --> D pi).


pdgid: S041R15
text:
ALAM 1994 assume equal production of B+ and B0 at the Upsilon(4S) and use the CLEO II B(D^*(2007)0 --> D0 pi0) and absolute B(D0 --> K- pi+) and the PDG 1992 B(D0 --> K- pi+ pi0)/B(D0 --> K- pi+) and B(D0 --> K- 2pi+ pi-)/B(D0 --> K- pi+).


pdgid: S041R15
text:
Assumes equal production of B+ and B0 at the Upsilon(4S) and uses Mark III branching fractions for the D and D^*(2010).


pdgid: S041R15
text:
This is a derived branching ratio, using the inclusive pion spectrum and other two-body B decays. BEBEK 1987 assume the Upsilon(4S) decays 43% to B0 Bbar0.


pdgid: S041S41
text:
Assumes equal production of B0 and B+ at the Upsilon(4S) resonance. The second error combines the systematic and theoretical uncertainties in quadrature. CSORNA 2003 includes data used in ALAM 1994. A full angular fit to three complex helicity amplitudes is performed.


pdgid: S041S41
text:
ALAM 1994 assume equal production of B+ and B0 at the Upsilon(4S) and use the CLEO II B(D^*(2007)0 --> D0 pi0) and absolute B(D0 --> K- pi+) and the PDG 1992 B(D0 --> K- pi+ pi0)/B(D0 --> K- pi+) and B(D0 --> K- 2pi+ pi-)/B(D0 --> K- pi+). The nonresonant pi+ pi0 contribution under the rho+ is negligible.


pdgid: S041B48
text:
AUBERT 2005N reports [G(B+ --> Dbar^*(2007)0 K+)/G(total)] / [B(B+ --> Dbar^*(2007)0 pi+)] = 0.0813+-0.0040+0.0042-0.0031 which we multiply by our best value B(B+ --> Dbar^*(2007)0 pi+) = 5.17+-0.15E-3. Our first error is their experiment's error and our second error is the systematic error from using our best value.


pdgid: S041B48
text:
ABE 2001I reports [G(B+ --> Dbar^*(2007)0 K+)/G(total)] / [B(B+ --> Dbar^*(2007)0 pi+)] = 0.078+-0.019+-0.009 which we multiply by our best value B(B+ --> Dbar^*(2007)0 pi+) = 5.17+-0.15E-3. Our first error is their experiment's error and our second error is the systematic error from using our best value.


pdgid: S041C47
text:
AUBERT 2008BF reports [G(B+ --> Dbar_CP(+1)^*()0 K+)/G(total)] / [B(B+ --> Dbar^*(2007)0 K+)] = 0.655+-0.065+-0.020 which we multiply by our best value B(B+ --> Dbar^*(2007)0 K+) = 4.19+0.31-0.28E-4. Our first error is their experiment's error and our second error is the systematic error from using our best value.


pdgid: S041P52
text:
Uses semi-inclusive reconstruction of B+ --> ([ K+ pi- ]_D gamma / pi0 )_D^* K+ / pi+. Decays of D^* --> D gamma / pi0 are reconstructed without inclusion of pi0 or gamma.


pdgid: S041Q71
text:
Reports a double ratio of B(B+ --> D_CP(+1)^*()0 K+ )/B(B+ --> D_CP(+1)^*()0 pi+) and B(B+ --> Dbar^*()0 K+ )/B(B+ --> Dbar^*()0 pi+), 1.41+-0.25+-0.06. We multiply by our best value of B(B+ --> Dbar^*()0 K+ )/B(B+ --> Dbar^*()0 pi+) = 0.080+-0.011. Our first error is their experiment's error and the second error is systematic error from using our best value.


pdgid: S041C48
text:
AUBERT 2008BF reports [G(B+ --> Dbar_CP(-1)^*()0 K+)/G(total)] / [B(B+ --> Dbar^*(2007)0 K+)] = 0.55+-0.06+-0.02 which we multiply by our best value B(B+ --> Dbar^*(2007)0 K+) = 4.19+0.31-0.28E-4. Our first error is their experiment's error and our second error is the systematic error from using our best value.


pdgid: S041Q81
text:
Reports a double ratio of B(B+ --> D^*_CP(-1)()0 K+ )/B(B+ --> D^*_CP(-1)()0 pi+) and B(B+ --> Dbar^*()0 K+ )/B(B+ --> Dbar^*()0 pi+), 1.15+-0.31+-0.12. We multiply by our best value of B(B+ --> Dbar^*()0 K+ )/B(B+ --> Dbar^*()0 pi+) = 0.080+-0.011. Our first error is their experiment's error and the second error is systematic error from using our best value.


pdgid: S041S92
text:
The three pion mass is required to be between 1.0 and 1.6 GeV consistent with an a_{{1}} meson. (If this channel is dominated by a_{{1}}()+, the branching ratio for Dbar^*()0 a_1()+ is twice that for Dbar^*()0 pi+ pi+ pi-.)


pdgid: S041S96
text:
ALAM 1994 value is twice their Gamma(Dbar^*(2007)0 pi+ pi+ pi-)/Gamma(total) value based on their observation that the three pions are dominantly in the a_{{1}}(1260) mass range 1.0 to 1.6 GeV.


pdgid: S041B15
text:
BRANDENBURG 1998 assume equal production of B+ and B0 at Upsilon(4S) and use the D^* partial reconstruction technique. The first error is their experiment's error and the second error is the systematic error from the PDG 1996 value of B(D^* --> D pi).


pdgid: S041R12
text:
ALBRECHT 1990J reports 0.018+-0.007+-0.005 from a measurement of [G(B+ --> D^*(2010)- pi+ pi+ pi0)/G(total)] * [B(D^*(2010)+ --> D0 pi+)] assuming B(D^*(2010)+ --> D0 pi+) = 0.57+-0.06, which we rescale to our best value B(D^*(2010)+ --> D0 pi+) = 67.7+-0.5E-2. Our first error is their experiment's error and our second error is the systematic error from using our best value. Assumes equal production of B+ and B0 at the Upsilon(4S) and uses Mark III branching fractions for the D.


pdgid: S041R03
text:
AUBERT,BE 2006J reports [G(B+ --> Dbar^**0() pi+)/G(total)] / [B(B+ --> Dbar0 pi+)] = 1.22+-0.13+-0.23 which we multiply by our best value B(B+ --> Dbar0 pi+) = 4.61+-0.10E-3. Our first error is their experiment's error and our second error is the systematic error from using our best value.


pdgid: S041R93
text:
ALAM 1994 assume equal production of B+ and B0 at the Upsilon(4S) and use the CLEO II B(D^*(2010)+ --> D0 pi+) and absolute B(D0 --> K- pi+) and the PDG 1992 B(D0 --> K- pi+ pi0)/B(D0 --> K- pi+) and assuming B(D_1(2420)0 --> D^*(2010)+ pi-) = 67%.


pdgid: S041R93
text:
ALBRECHT 1994D assume equal production of B+ and B0 at the Upsilon(4S) and use the CLEO II B(D^*(2010)+ --> D0 pi+) assuming B(D_1(2420)0 --> D^*(2010)+ pi-) = 67%.


pdgid: S041R94
text:
ALAM 1994 assume equal production of B+ and B0 at the Upsilon(4S) and use the CLEO II B(D^*(2010)+ --> D0 pi+) assuming B(D_1(2420)0 --> D^*(2010)+ pi-) = 67%.


pdgid: S041R91
text:
ALAM 1994 assume equal production of B+ and B0 at the Upsilon(4S) and use the Mark III B(D+ --> K- 2pi+) and B(D_2^*(2460)0 --> D+ pi-) = 30%.


pdgid: S041R91
text:
ALAM 1994 assume equal production of B+ and B0 at the Upsilon(4S) and use the Mark III B(D+ --> K- 2pi+), the CLEO II B(D^*(2010)+ --> D0 pi+) and B(D_2^*(2460)0 --> D^*(2010)+ pi-) = 20%.


pdgid: S041R91
text:
ALBRECHT 1994D assume equal production of B+ and B0 at the Upsilon(4S) and use the CLEO II B(D^*(2010)+ --> D0 pi+) and B(D_2^*(2460)0 --> D^*(2010)+ pi-) = 30%.


pdgid: S041R39
text:
AUBERT 2006N reports 0.92+-0.14+-0.18E-2 from a measurement of [G(B+ --> Dbar0 D_s()+)/G(total)] * [B(D_s()+ --> phi pi+)] assuming B(D_s()+ --> phi pi+) = 0.0462+-0.0062, which we rescale to our best value B(D_s()+ --> phi pi+) = 4.5+-0.4E-2. Our first error is their experiment's error and our second error is the systematic error from using our best value.


pdgid: S041R39
text:
GIBAUT 1996 reports 0.0126+-0.0022+-0.0025 from a measurement of [G(B+ --> Dbar0 D_s()+)/G(total)] * [B(D_s()+ --> phi pi+)] assuming B(D_s()+ --> phi pi+) = 0.035, which we rescale to our best value B(D_s()+ --> phi pi+) = 4.5+-0.4E-2. Our first error is their experiment's error and our second error is the systematic error from using our best value.


pdgid: S041R39
text:
ALBRECHT 1992G reports 0.024+-0.012+-0.004 from a measurement of [G(B+ --> Dbar0 D_s()+)/G(total)] * [B(D_s()+ --> phi pi+)] assuming B(D_s()+ --> phi pi+) = 0.027, which we rescale to our best value B(D_s()+ --> phi pi+) = 4.5+-0.4E-2. Our first error is their experiment's error and our second error is the systematic error from using our best value. Assumes PDG 1990 D0 branching ratios, e.g., B(D0 --> K- pi+) = 3.71+-0.25%.


pdgid: S041R39
text:
BORTOLETTO 1990 reports 0.029+-0.013 from a measurement of [G(B+ --> Dbar0 D_s()+)/G(total)] * [B(D_s()+ --> phi pi+)] assuming B(D_s()+ --> phi pi+) = 0.02, which we rescale to our best value B(D_s()+ --> phi pi+) = 4.5+-0.4E-2. Our first error is their experiment's error and our second error is the systematic error from using our best value.


pdgid: S041C4
text:
CHOI 2015A reports 8.0+1.3-1.2+-1.1+-0.4E-4 from a measurement of [G(B+ --> D_s0^*(2317)+ Dbar0, D_s0^*()+ --> D_s()+ pi0)/G(total)] * [B(D_s()+ --> K+ K- pi+)] assuming B(D_s()+ --> K+ K- pi+) = 5.39+-0.21E-2, which we rescale to our best value B(D_s()+ --> K+ K- pi+) = 5.45+-0.08E-2. Our first error is their experiment's error and our second error is the systematic error from using our best value.


pdgid: S041C4
text:
AUBERT,B 2004S reports 1.0+-0.3+0.4-0.2E-3 from a measurement of [G(B+ --> D_s0^*(2317)+ Dbar0, D_s0^*()+ --> D_s()+ pi0)/G(total)] * [B(D_s()+ --> phi pi+)] assuming B(D_s()+ --> phi pi+) = 0.036+-0.009, which we rescale to our best value B(D_s()+ --> phi pi+) = 4.5+-0.4E-2. Our first error is their experiment's error and our second error is the systematic error from using our best value.


pdgid: S041C4
text:
KROKOVNY 2003B reports 0.81+0.30-0.27+-0.24E-3 from a measurement of [G(B+ --> D_s0^*(2317)+ Dbar0, D_s0^*()+ --> D_s()+ pi0)/G(total)] * [B(D_s()+ --> phi pi+)] assuming B(D_s()+ --> phi pi+) = 0.036+-0.009, which we rescale to our best value B(D_s()+ --> phi pi+) = 4.5+-0.4E-2. Our first error is their experiment's error and our second error is the systematic error from using our best value.


pdgid: S041C5
text:
AUBERT,B 2004S reports [G(B+ --> D_sJ(2457)+ Dbar0)/G(total)] * [B(D_s1(2460)+ --> D_s^*()+ pi0)] = 2.2+0.8-0.7+-0.3E-3 which we divide by our best value B(D_s1(2460)+ --> D_s^*()+ pi0) = 48+-11E-2. Our first error is their experiment's error and our second error is the systematic error from using our best value.


pdgid: S041C5
text:
KROKOVNY 2003B reports [G(B+ --> D_sJ(2457)+ Dbar0)/G(total)] * [B(D_s1(2460)+ --> D_s^*()+ pi0)] = 1.0+0.5-0.4+-0.1E-3 which we divide by our best value B(D_s1(2460)+ --> D_s^*()+ pi0) = 48+-11E-2. Our first error is their experiment's error and our second error is the systematic error from using our best value.


pdgid: S041Q21
text:
AUBERT,B 2004S reports 0.6+-0.2+0.2-0.1E-3 from a measurement of [G(B+ --> D_sJ(2457)+ Dbar()0  x D_sJ(2457)+ --> D_s()+ gamma)/G(total)] * [B(D_s()+ --> phi pi+)] assuming B(D_s()+ --> phi pi+) = 0.036+-0.009, which we rescale to our best value B(D_s()+ --> phi pi+) = 4.5+-0.4E-2. Our first error is their experiment's error and our second error is the systematic error from using our best value.


pdgid: S041Q21
text:
KROKOVNY 2003B reports 0.56+0.16-0.15+-0.17E-3 from a measurement of [G(B+ --> D_sJ(2457)+ Dbar()0  x D_sJ(2457)+ --> D_s()+ gamma)/G(total)] * [B(D_s()+ --> phi pi+)] assuming B(D_s()+ --> phi pi+) = 0.036+-0.009, which we rescale to our best value B(D_s()+ --> phi pi+) = 4.5+-0.4E-2. Our first error is their experiment's error and our second error is the systematic error from using our best value.


pdgid: S041Q20
text:
AUBERT,B 2004S reports [G(B+ --> D_sJ(2457)+ Dbar^*(2007)0)/G(total)] * [B(D_s1(2460)+ --> D_s^*()+ pi0)] = 7.6+-1.7+3.2-2.4E-3 which we divide by our best value B(D_s1(2460)+ --> D_s^*()+ pi0) = 48+-11E-2. Our first error is their experiment's error and our second error is the systematic error from using our best value.


pdgid: S041C63
text:
Uses Gamma(D^*(2007)0 --> D0 pi0) / Gamma(D^*(2007)0 --> D0 gamma) = 1.74+-0.13 and Gamma(D_s1(2536)+ --> D^*(2007)0 K+) / Gamma(D_s1(2536)+ --> D^*(2010)+ K0) = 1.36+-0.2.


pdgid: S041S49
text:
AUBERT 2006N reports 0.77+-0.15+-0.13E-2 from a measurement of [G(B+ --> Dbar0 D_s^*()+)/G(total)] * [B(D_s()+ --> phi pi+)] assuming B(D_s()+ --> phi pi+) = 0.0462+-0.0062, which we rescale to our best value B(D_s()+ --> phi pi+) = 4.5+-0.4E-2. Our first error is their experiment's error and our second error is the systematic error from using our best value.


pdgid: S041S49
text:
GIBAUT 1996 reports 0.0087+-0.0027+-0.0017 from a measurement of [G(B+ --> Dbar0 D_s^*()+)/G(total)] * [B(D_s()+ --> phi pi+)] assuming B(D_s()+ --> phi pi+) = 0.035, which we rescale to our best value B(D_s()+ --> phi pi+) = 4.5+-0.4E-2. Our first error is their experiment's error and our second error is the systematic error from using our best value.


pdgid: S041S49
text:
ALBRECHT 1992G reports 0.016+-0.012+-0.003 from a measurement of [G(B+ --> Dbar0 D_s^*()+)/G(total)] * [B(D_s()+ --> phi pi+)] assuming B(D_s()+ --> phi pi+) = 0.027, which we rescale to our best value B(D_s()+ --> phi pi+) = 4.5+-0.4E-2. Our first error is their experiment's error and our second error is the systematic error from using our best value. Assumes PDG 1990 D0 branching ratios, e.g., B(D0 --> K- pi+) = 3.71+-0.25%.


pdgid: S041A95
text:
Uses simultaneous fits of Bbar0 --> Dbar0 D_s()+ pi- and B+ --> D- D_s()+ pi+ amplitudes assuming isospin symmetry.


pdgid: S041S50
text:
AUBERT 2006N reports 0.76+-0.15+-0.13E-2 from a measurement of [G(B+ --> Dbar^*(2007)0 D_s()+)/G(total)] * [B(D_s()+ --> phi pi+)] assuming B(D_s()+ --> phi pi+) = 0.0462+-0.0062, which we rescale to our best value B(D_s()+ --> phi pi+) = 4.5+-0.4E-2. Our first error is their experiment's error and our second error is the systematic error from using our best value.


pdgid: S041S50
text:
GIBAUT 1996 reports 0.0140+-0.0043+-0.0035 from a measurement of [G(B+ --> Dbar^*(2007)0 D_s()+)/G(total)] * [B(D_s()+ --> phi pi+)] assuming B(D_s()+ --> phi pi+) = 0.035, which we rescale to our best value B(D_s()+ --> phi pi+) = 4.5+-0.4E-2. Our first error is their experiment's error and our second error is the systematic error from using our best value.


pdgid: S041S50
text:
ALBRECHT 1992G reports 0.013+-0.009+-0.002 from a measurement of [G(B+ --> Dbar^*(2007)0 D_s()+)/G(total)] * [B(D_s()+ --> phi pi+)] assuming B(D_s()+ --> phi pi+) = 0.027, which we rescale to our best value B(D_s()+ --> phi pi+) = 4.5+-0.4E-2. Our first error is their experiment's error and our second error is the systematic error from using our best value. Assumes PDG 1990 D0 and D^*(2007)0 branching ratios, e.g., B(D0 --> K- pi+) = 3.71+-0.25% and B(D^*(2007)0 --> D0 pi0) = 55+-6%.


pdgid: S041S51
text:
AUBERT 2006N reports 1.62+-0.22+-0.18E-2 from a measurement of [G(B+ --> Dbar^*(2007)0 D_s^*()+)/G(total)] * [B(D_s()+ --> phi pi+)] assuming B(D_s()+ --> phi pi+) = 0.0462+-0.0062, which we rescale to our best value B(D_s()+ --> phi pi+) = 4.5+-0.4E-2. Our first error is their experiment's error and our second error is the systematic error from using our best value.


pdgid: S041S51
text:
GIBAUT 1996 reports 0.0310+-0.0088+-0.0065 from a measurement of [G(B+ --> Dbar^*(2007)0 D_s^*()+)/G(total)] * [B(D_s()+ --> phi pi+)] assuming B(D_s()+ --> phi pi+) = 0.035, which we rescale to our best value B(D_s()+ --> phi pi+) = 4.5+-0.4E-2. Our first error is their experiment's error and our second error is the systematic error from using our best value.


pdgid: S041S51
text:
ALBRECHT 1992G reports 0.031+-0.016+-0.005 from a measurement of [G(B+ --> Dbar^*(2007)0 D_s^*()+)/G(total)] * [B(D_s()+ --> phi pi+)] assuming B(D_s()+ --> phi pi+) = 0.027, which we rescale to our best value B(D_s()+ --> phi pi+) = 4.5+-0.4E-2. Our first error is their experiment's error and our second error is the systematic error from using our best value. Assumes PDG 1990 D0 and D^*(2007)0 branching ratios, e.g., B(D0 --> K- pi+) = 3.71+-0.25% and B(D^*(2007)0 --> D0 pi0) = 55+-6%.


pdgid: S041B39
text:
AHMED 2000B reports their experiment's uncertainties (+-0.78+-0.48+-0.68)%, where the first error is statistical, the second is systematic, and the third is the uncertainty in the D_s --> phi pi branching fraction. We combine the first two in quadrature.


pdgid: S041D48
text:
The NR(0-+) line shapes is described by f(R)(m) = e**(alpha+beta i)/(m^2-m_{{0}}^2) with m(0) = 4.35 GeV. The parameters alpha and beta are determined from the fit to the data.


pdgid: S041A94
text:
AAIJ 2023AI report that the last error is due to the uncertainties on the branching fractions of the D_s()+- --> K-+ K+- pi+- and D+- --> K-+ pi+- pi+- decays.


pdgid: S041S83
text:
AUBERT 2007M reports [G(B+ --> D_s()+ pi0)/G(total)] * [B(D_s()+ --> phi pi+)] = 7.0+2.4-2.1+0.6-0.8E-7 which we divide by our best value B(D_s()+ --> phi pi+) = 4.5+-0.4E-2. Our first error is their experiment's error and our second error is the systematic error from using our best value.


pdgid: S041S83
text:
ALEXANDER 1993B reports <2.0E-4 from a measurement of [G(B+ --> D_s()+ pi0)/G(total)] * [B(D_s()+ --> phi pi+)] assuming B(D_s()+ --> phi pi+) = 0.037, which we rescale to our best value B(D_s()+ --> phi pi+) = 4.5E-2.


pdgid: S041S62
text:
ALBRECHT 1993E reports <0.9E-3 from a measurement of [[G(B+ --> D_s()+ pi0)/G(total)+ G(B+ --> D_s^*()+ pi0)/G(total)] * [B(D_s()+ --> phi pi+)] assuming B(D_s()+ --> phi pi+) = 0.027, which we rescale to our best value B(D_s()+ --> phi pi+) = 4.5E-2.


pdgid: S041S84
text:
ALEXANDER 1993B reports <3.2E-4 from a measurement of [G(B+ --> D_s^*()+ pi0)/G(total)] * [B(D_s()+ --> phi pi+)] assuming B(D_s()+ --> phi pi+) = 0.037, which we rescale to our best value B(D_s()+ --> phi pi+) = 4.5E-2.


pdgid: S041S85
text:
ALEXANDER 1993B reports <4.6E-4 from a measurement of [G(B+ --> D_s()+ eta)/G(total)] * [B(D_s()+ --> phi pi+)] assuming B(D_s()+ --> phi pi+) = 0.037, which we rescale to our best value B(D_s()+ --> phi pi+) = 4.5E-2.


pdgid: S041S86
text:
ALEXANDER 1993B reports <7.5E-4 from a measurement of [G(B+ --> D_s^*()+ eta)/G(total)] * [B(D_s()+ --> phi pi+)] assuming B(D_s()+ --> phi pi+) = 0.037, which we rescale to our best value B(D_s()+ --> phi pi+) = 4.5E-2.


pdgid: S041S87
text:
ALEXANDER 1993B reports <3.7E-4 from a measurement of [G(B+ --> D_s()+ rho0)/G(total)] * [B(D_s()+ --> phi pi+)] assuming B(D_s()+ --> phi pi+) = 0.037, which we rescale to our best value B(D_s()+ --> phi pi+) = 4.5E-2.


pdgid: S041S60
text:
ALBRECHT 1993E reports <3.4E-3 from a measurement of [[G(B+ --> D_s()+ rho0)/G(total)+ G(B+ --> D_s()+ Kbar^*(892)0)/G(total)] * [B(D_s()+ --> phi pi+)] assuming B(D_s()+ --> phi pi+) = 0.027, which we rescale to our best value B(D_s()+ --> phi pi+) = 4.5E-2.


pdgid: S041S88
text:
ALEXANDER 1993B reports <4.8E-4 from a measurement of [G(B+ --> D_s^*()+ rho0)/G(total)] * [B(D_s()+ --> phi pi+)] assuming B(D_s()+ --> phi pi+) = 0.037, which we rescale to our best value B(D_s()+ --> phi pi+) = 4.5E-2.


pdgid: S041S61
text:
ALBRECHT 1993E reports <2.0E-3 from a measurement of [[G(B+ --> D_s^*()+ rho0)/G(total)+ G(B+ --> D_s^*()+ Kbar^*(892)0)/G(total)] * [B(D_s()+ --> phi pi+)] assuming B(D_s()+ --> phi pi+) = 0.027, which we rescale to our best value B(D_s()+ --> phi pi+) = 4.5E-2.


pdgid: S041S63
text:
ALEXANDER 1993B reports <4.8E-4 from a measurement of [G(B+ --> D_s()+ omega)/G(total)] * [B(D_s()+ --> phi pi+)] assuming B(D_s()+ --> phi pi+) = 0.037, which we rescale to our best value B(D_s()+ --> phi pi+) = 4.5E-2.


pdgid: S041S63
text:
ALBRECHT 1993E reports <3.4E-3 from a measurement of [G(B+ --> D_s()+ omega)/G(total)] * [B(D_s()+ --> phi pi+)] assuming B(D_s()+ --> phi pi+) = 0.027, which we rescale to our best value B(D_s()+ --> phi pi+) = 4.5E-2.


pdgid: S041S64
text:
ALEXANDER 1993B reports <6.8E-4 from a measurement of [G(B+ --> D_s^*()+ omega)/G(total)] * [B(D_s()+ --> phi pi+)] assuming B(D_s()+ --> phi pi+) = 0.037, which we rescale to our best value B(D_s()+ --> phi pi+) = 4.5E-2.


pdgid: S041S64
text:
ALBRECHT 1993E reports <1.9E-3 from a measurement of [G(B+ --> D_s^*()+ omega)/G(total)] * [B(D_s()+ --> phi pi+)] assuming B(D_s()+ --> phi pi+) = 0.027, which we rescale to our best value B(D_s()+ --> phi pi+) = 4.5E-2.


pdgid: S041S65
text:
ALBRECHT 1993E reports <3.0E-3 from a measurement of [G(B+ --> D_s()+ a_1(1260)0)/G(total)] * [B(D_s()+ --> phi pi+)] assuming B(D_s()+ --> phi pi+) = 0.027, which we rescale to our best value B(D_s()+ --> phi pi+) = 4.5E-2.


pdgid: S041S66
text:
ALBRECHT 1993E reports <2.2E-3 from a measurement of [G(B+ --> D_s^*()+ a_1(1260)0)/G(total)] * [B(D_s()+ --> phi pi+)] assuming B(D_s()+ --> phi pi+) = 0.027, which we rescale to our best value B(D_s()+ --> phi pi+) = 4.5E-2.


pdgid: S041P49
text:
AAIJ 2018B reports [G(B+ --> D_s()+ K+ K-)/G(B+ --> Dbar0 D_s()+)] / [B(D0 --> K+ K-)] = 0.197+-0.015+-0.017 which we multiply by our best value B(D0 --> K+ K-) = 4.08+-0.06E-3. Our first error is their experiment's error and our second error is the systematic error from using our best value.


pdgid: S041S67
text:
AAIJ 2013R reports 1.87+1.25-0.73+-0.19+-0.32E-6 from a measurement of [G(B+ --> D_s()+ phi)/G(total)] / [B(B+ --> Dbar0 D_s()+)] assuming B(B+ --> Dbar0 D_s()+) = 10.0+-1.7E-3, which we rescale to our best value B(B+ --> Dbar0 D_s()+) = 9.3+-0.6E-3. Our first error is their experiment's error and our second error is the systematic error from using our best value.


pdgid: S041S67
text:
ALBRECHT 1993E reports <1.7E-3 from a measurement of [G(B+ --> D_s()+ phi)/G(total)] * [B(D_s()+ --> phi pi+)] assuming B(D_s()+ --> phi pi+) = 0.027, which we rescale to our best value B(D_s()+ --> phi pi+) = 4.5E-2.


pdgid: S041S67
text:
ALEXANDER 1993B reports <3.1E-4 from a measurement of [G(B+ --> D_s()+ phi)/G(total)] * [B(D_s()+ --> phi pi+)] assuming B(D_s()+ --> phi pi+) = 0.037, which we rescale to our best value B(D_s()+ --> phi pi+) = 4.5E-2.


pdgid: S041S68
text:
ALBRECHT 1993E reports <2.1E-3 from a measurement of [G(B+ --> D_s^*()+ phi)/G(total)] * [B(D_s()+ --> phi pi+)] assuming B(D_s()+ --> phi pi+) = 0.027, which we rescale to our best value B(D_s()+ --> phi pi+) = 4.5E-2.


pdgid: S041S68
text:
ALEXANDER 1993B reports <4.2E-4 from a measurement of [G(B+ --> D_s^*()+ phi)/G(total)] * [B(D_s()+ --> phi pi+)] assuming B(D_s()+ --> phi pi+) = 0.037, which we rescale to our best value B(D_s()+ --> phi pi+) = 4.5E-2.


pdgid: S041S69
text:
ALBRECHT 1993E reports <2.5E-3 from a measurement of [G(B+ --> D_s()+ Kbar0)/G(total)] * [B(D_s()+ --> phi pi+)] assuming B(D_s()+ --> phi pi+) = 0.027, which we rescale to our best value B(D_s()+ --> phi pi+) = 4.5E-2.


pdgid: S041S69
text:
ALEXANDER 1993B reports <10.3E-4 from a measurement of [G(B+ --> D_s()+ Kbar0)/G(total)] * [B(D_s()+ --> phi pi+)] assuming B(D_s()+ --> phi pi+) = 0.037, which we rescale to our best value B(D_s()+ --> phi pi+) = 4.5E-2.


pdgid: S041S70
text:
ALBRECHT 1993E reports <3.1E-3 from a measurement of [G(B+ --> D_s^*()+ Kbar0)/G(total)] * [B(D_s()+ --> phi pi+)] assuming B(D_s()+ --> phi pi+) = 0.027, which we rescale to our best value B(D_s()+ --> phi pi+) = 4.5E-2.


pdgid: S041S70
text:
ALEXANDER 1993B reports <10.9E-4 from a measurement of [G(B+ --> D_s^*()+ Kbar0)/G(total)] * [B(D_s()+ --> phi pi+)] assuming B(D_s()+ --> phi pi+) = 0.037, which we rescale to our best value B(D_s()+ --> phi pi+) = 4.5E-2.


pdgid: S041S89
text:
ALEXANDER 1993B reports <4.4E-4 from a measurement of [G(B+ --> D_s()+ Kbar^*(892)0)/G(total)] * [B(D_s()+ --> phi pi+)] assuming B(D_s()+ --> phi pi+) = 0.037, which we rescale to our best value B(D_s()+ --> phi pi+) = 4.5E-2.


pdgid: S041S90
text:
ALEXANDER 1993B reports <4.3E-4 from a measurement of [G(B+ --> D_s^*()+ Kbar^*(892)0)/G(total)] * [B(D_s()+ --> phi pi+)] assuming B(D_s()+ --> phi pi+) = 0.037, which we rescale to our best value B(D_s()+ --> phi pi+) = 4.5E-2.


pdgid: S041S71
text:
ALBRECHT 1993E reports <1.1E-3 from a measurement of [G(B+ --> D_s()- pi+ K+)/G(total)] * [B(D_s()+ --> phi pi+)] assuming B(D_s()+ --> phi pi+) = 0.027, which we rescale to our best value B(D_s()+ --> phi pi+) = 4.5E-2.


pdgid: S041S72
text:
ALBRECHT 1993E reports <1.6E-3 from a measurement of [G(B+ --> D_s^*()- pi+ K+)/G(total)] * [B(D_s()+ --> phi pi+)] assuming B(D_s()+ --> phi pi+) = 0.027, which we rescale to our best value B(D_s()+ --> phi pi+) = 4.5E-2.


pdgid: S041S73
text:
ALBRECHT 1993E reports <8.6E-3 from a measurement of [G(B+ --> D_s()- pi+ K^*(892)+)/G(total)] * [B(D_s()+ --> phi pi+)] assuming B(D_s()+ --> phi pi+) = 0.027, which we rescale to our best value B(D_s()+ --> phi pi+) = 4.5E-2.


pdgid: S041S74
text:
ALBRECHT 1993E reports <1.1E-2 from a measurement of [G(B+ --> D_s^*()- pi+ K^*(892)+)/G(total)] * [B(D_s()+ --> phi pi+)] assuming B(D_s()+ --> phi pi+) = 0.027, which we rescale to our best value B(D_s()+ --> phi pi+) = 4.5E-2.


pdgid: S041B40
text:
CHILIKIN 2019 reports [G(B+ --> eta_c K+)/G(total)] * [B(eta_c(1S) --> p pbar pi+ pi-)] = 39.4+4.1-3.9+2.2-1.8E-7 which we divide by our best value B(eta_c(1S) --> p pbar pi+ pi-) = 3.7+-0.5E-3. Our first error is their experiment's error and our second error is the systematic error from using our best value.


pdgid: S041B40
text:
The ratio of B(B+- --> K+- eta_c) B(eta_c --> K Kbar pi) = 7.4+-0.5+-0.7E-5 reported in AUBERT,B 2004B and B(B+- --> K+- eta_c) = 8.7+-1.5E-3 reported in AUBERT 2006E contribute to the determination of B(eta_c --> K Kbar pi), which is used by others for normalization.


pdgid: S041B40
text:
AUBERT,B 2005L reports [G(B+ --> eta_c K+)/G(total)] * [B(eta_c(1S) --> p pbar)] = 1.8+0.3-0.2+-0.2E-6 which we divide by our best value B(eta_c(1S) --> p pbar) = 1.33+-0.11E-3. Our first error is their experiment's error and our second error is the systematic error from using our best value.


pdgid: S041B40
text:
AUBERT,B 2004B reports [G(B+ --> eta_c K+)/G(total)] * [B(eta_c(1S) --> K Kbar pi)] = 0.074+-0.005+-0.007E-3 which we divide by our best value B(eta_c(1S) --> K Kbar pi) = 7.1+-0.4E-2. Our first error is their experiment's error and our second error is the systematic error from using our best value.


pdgid: S041B40
text:
EDWARDS 2001 assumes equal production of B0 and B+ at the Upsilon(4S). The correlated uncertainties (28.3)% from B(J/psi(1S) --> gamma eta_c) in those modes have been accounted for.


pdgid: S041Q96
text:
AUBERT 2007AV reports [G(B+ --> eta_c K^*(892)+)/G(total)] * [B(eta_c(1S) --> p pbar)] = 1.57+0.56-0.46+0.45-0.36E-6 which we divide by our best value B(eta_c(1S) --> p pbar) = 1.33+-0.11E-3. Our first error is their experiment's error and our second error is the systematic error from using our best value.


pdgid: S041BA2
text:
Measured relative to B+ --> J/psi K+ decay with charmonia reconstructed in p pbar final state and using B(B+ --> J/psi K+) * B(J/psi --> p pbar)= 2.17+-0.08E-6. The last uncertainty includes the uncertainty of B(B+ --> J/psi K+) * B(J/psi --> p pbar).


pdgid: S041BA2
text:
Measured relative to B+ --> J/psi K+ decay with charmonia reconstructed in p pbar final state and using B(B+ --> J/psi K+) = 1.013+-0.034E-3 and B(J/psi --> p pbar) = 2.17+-0.07E-3.


pdgid: S041C65
text:
The first uncertainty includes both statistical and interference effects while the second is due to systematics.


pdgid: S041R3
text:
CHOUDHURY 2021 uses the relative production fraction of charged (f**+-) to neutral (f**00) B mesons at Upsilon(4S) value of f**+-/f**00 = 1.058+-0.024.


pdgid: S041R3
text:
CHILIKIN 2019 reports [G(B+ --> J/psi(1S) K+)/G(total)] * [B(J/psi(1S) --> p pbar pi+ pi-)] = 56.4+3.3-3.2+2.7-2.5E-7 which we divide by our best value B(J/psi(1S) --> p pbar pi+ pi-) = 6.0+-0.5E-3. Our first error is their experiment's error and our second error is the systematic error from using our best value.


pdgid: S041R3
text:
AUBERT,B 2005L reports [G(B+ --> J/psi(1S) K+)/G(total)] * [B(J/psi(1S) --> p pbar)] = 2.2+-0.2+-0.1E-6 which we divide by our best value B(J/psi(1S) --> p pbar) = 2.120+-0.029E-3. Our first error is their experiment's error and our second error is the systematic error from using our best value.


pdgid: S041R3
text:
BORTOLETTO 1992 reports 8+-2+-2E-4 from a measurement of [G(B+ --> J/psi(1S) K+)/G(total)] * [B(J/psi(1S) --> e+ e-)] assuming B(J/psi(1S) --> e+ e-) = 0.069+-0.009, which we rescale to our best value B(J/psi(1S) --> e+ e-) = 5.971+-0.032E-2. Our first error is their experiment's error and our second error is the systematic error from using our best value. Assumes equal production of B+ and B0 at the Upsilon(4S).


pdgid: S041R3
text:
ALBRECHT 1990J reports 7+-3+-1E-4 from a measurement of [G(B+ --> J/psi(1S) K+)/G(total)] * [B(J/psi(1S) --> e+ e-)] assuming B(J/psi(1S) --> e+ e-) = 0.069+-0.009, which we rescale to our best value B(J/psi(1S) --> e+ e-) = 5.971+-0.032E-2. Our first error is their experiment's error and our second error is the systematic error from using our best value. Assumes equal production of B+ and B0 at the Upsilon(4S).


pdgid: S041Q06
text:
AAIJ 2013S reports [G(B+ --> eta_c K+)/G(B+ --> J/psi(1S) K+)] * [B(eta_c(1S) --> p pbar)] / [B(J/psi(1S) --> p pbar)] = 0.578+-0.035+-0.026 which we multiply or divide by our best values B(eta_c(1S) --> p pbar) = 1.33+-0.11E-3, B(J/psi(1S) --> p pbar) = 2.120+-0.029E-3. Our first error is their experiment's error and our second error is the systematic error from using our best values.


pdgid: S041R19
text:
ACOSTA 2002F uses as reference of B(B --> J/psi(1S) K+) = 10.1+-0.6E-4. The second error includes the systematic error and the uncertainties of the branching ratio.


pdgid: S041R19
text:
BORTOLETTO 1992 reports 1.2+-0.6+-0.4E-3 from a measurement of [G(B+ --> J/psi(1S) K+ pi+ pi-)/G(total)] * [B(J/psi(1S) --> e+ e-)] assuming B(J/psi(1S) --> e+ e-) = 0.069+-0.009, which we rescale to our best value B(J/psi(1S) --> e+ e-) = 5.971+-0.032E-2. Our first error is their experiment's error and our second error is the systematic error from using our best value. Assumes equal production of B+ and B0 at the Upsilon(4S).


pdgid: S041R19
text:
ALBRECHT 1987D reports 1.2+-0.8E-3 from a measurement of [G(B+ --> J/psi(1S) K+ pi+ pi-)/G(total)] * [B(J/psi(1S) --> e+ e-)] assuming B(J/psi(1S) --> e+ e-) = 0.069+-0.009, which we rescale to our best value B(J/psi(1S) --> e+ e-) = 5.971+-0.032E-2. Our first error is their experiment's error and our second error is the systematic error from using our best value. They actually report 0.0011+-0.0007 assuming B+ B-/B0 Bbar0 ratio is 55/45. We rescale to 50/50. Analysis explicitly removes B+ --> psi(2S) K+.


pdgid: S041R19
text:
ALBRECHT 1990J reports <1.6E-3 from a measurement of [G(B+ --> J/psi(1S) K+ pi+ pi-)/G(total)] * [B(J/psi(1S) --> e+ e-)] assuming B(J/psi(1S) --> e+ e-) = 0.069, which we rescale to our best value B(J/psi(1S) --> e+ e-) = 5.971E-2. Assumes equal production of B+ and B0 at the Upsilon(4S).


pdgid: S041C3
text:
AUBERT 2006 reports [G(B+ --> chi_c1(3872) K+)/G(total)] * [B(chi_c1(3872) --> pi+ pi- J/psi(1S))] = 10.1+-2.5+-1.0E-6 which we divide by our best value B(chi_c1(3872) --> pi+ pi- J/psi(1S)) = 4.3+-1.4E-2. Our first error is their experiment's error and our second error is the systematic error from using our best value.


pdgid: S041C3
text:
AUBERT 2005R reports [G(B+ --> chi_c1(3872) K+)/G(total)] * [B(chi_c1(3872) --> pi+ pi- J/psi(1S))] = 12.8+-4.1E-6 which we divide by our best value B(chi_c1(3872) --> pi+ pi- J/psi(1S)) = 4.3+-1.4E-2. Our first error is their experiment's error and our second error is the systematic error from using our best value.


pdgid: S041C3
text:
CHOI 2003 reports [G(B+ --> chi_c1(3872) K+)/G(total)] * [B(chi_c1(3872) --> pi+ pi- J/psi(1S))] = 13.6+-3.0+-0.5E-6 which we divide by our best value B(chi_c1(3872) --> pi+ pi- J/psi(1S)) = 4.3+-1.4E-2. Our first error is their experiment's error and our second error is the systematic error from using our best value.


pdgid: S041P98
text:
AUBERT 2009B reports [G(B+ --> chi_c1(3872) K^*(892)+)/G(total)] * [B(chi_c1(3872) --> gamma J/psi)] < 4.8E-6 which we divide by our best value B(chi_c1(3872) --> gamma J/psi) = 10E-3.


pdgid: S041Q52
text:
Assumes equal production of B+ and B0 at the Upsilon(4S). The isovector-X hypothesis is excluded with a likelihood test at 1E-4 level.


pdgid: S041C85
text:
BALA 2015 reports [G(B+ --> chi_c1(3872) K0 pi+)/G(total)] * [B(chi_c1(3872) --> pi+ pi- J/psi(1S))] = 10.6+-3.0+-0.9E-6 which we divide by our best value B(chi_c1(3872) --> pi+ pi- J/psi(1S)) = 4.3+-1.4E-2. Our first error is their experiment's error and our second error is the systematic error from using our best value.


pdgid: S041R65
text:
AUBERT 2007AV reports [G(B+ --> J/psi(1S) K^*(892)+)/G(total)] * [B(J/psi(1S) --> p pbar)] = 3.78+0.72-0.64+0.28-0.23E-6 which we divide by our best value B(J/psi(1S) --> p pbar) = 2.120+-0.029E-3. Our first error is their experiment's error and our second error is the systematic error from using our best value.


pdgid: S041R65
text:
BORTOLETTO 1992 reports 1.3+-0.9+-0.3E-3 from a measurement of [G(B+ --> J/psi(1S) K^*(892)+)/G(total)] * [B(J/psi(1S) --> e+ e-)] assuming B(J/psi(1S) --> e+ e-) = 0.069+-0.009, which we rescale to our best value B(J/psi(1S) --> e+ e-) = 5.971+-0.032E-2. Our first error is their experiment's error and our second error is the systematic error from using our best value. Assumes equal production of B+ and B0 at the Upsilon(4S).


pdgid: S041R65
text:
ALBRECHT 1990J reports 1.6+-1.1+-0.3E-3 from a measurement of [G(B+ --> J/psi(1S) K^*(892)+)/G(total)] * [B(J/psi(1S) --> e+ e-)] assuming B(J/psi(1S) --> e+ e-) = 0.069+-0.009, which we rescale to our best value B(J/psi(1S) --> e+ e-) = 5.971+-0.032E-2. Our first error is their experiment's error and our second error is the systematic error from using our best value. Assumes equal production of B+ and B0 at the Upsilon(4S).


pdgid: S041S98
text:
JESSOP 1997 assumes equal production of B+ and B0 at the Upsilon(4S). The measurement is actually measured as an average over kaon charged and neutral states.


