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- W2017127621 abstract "Abstract We present a study of the decay properties of Z 0 →b b using inclusive muon and electron events. From a fit to the single and dilepton p and p⊥ spectra, we determine Br(b→lνX) = 0.119 ± 0.003(stat) ± 0.006(sys), assuming the Standard Model prediction of Γ b b = 378±3 MeV . From the ratio of the number of dipleton events to single lepton events, we find Br(b→lνX) = 0.113 ± 0.010(stat) ± 0.006(sys), without assumptions on Γ b b . From a fit to the impact parameter distribution of lepton tracks from semileptonic b decay, the lifetime of B-hadrons is measured to be 1.32±0.08(stat)±0.09(sys) ps. Using these measurements, the CKM matrix element | Vcb | is determined to be 0.046±0.002 (exp)−0.003+0.004(theory)." @default.
- W2017127621 created "2016-06-24" @default.
- W2017127621 creator A5047441254 @default.
- W2017127621 date "1992-06-01" @default.
- W2017127621 modified "2023-10-16" @default.
- W2017127621 title "Measurements of the semileptonic branching ratio Br(b→lvX), the lifetime of B-Hadrons and a determination of |Veb|" @default.
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- W2017127621 doi "https://doi.org/10.1016/0920-5632(92)90044-s" @default.
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