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- W2962837091 abstract "We present measurements of the lifetimes and polarization amplitudes for B_s --> J/psi phi and B_d --> J/psi K*0 decays. Lifetimes of the heavy (H) and light (L) mass eigenstates in the B_s system are separately measured for the first time by determining the relative contributions of amplitudes with definite CP as a function of the decay time. Using 203 +/- 15 B_s decays, we obtain tau_L = (1.05 +{0.16}/-{0.13} +/- 0.02) ps and tau_H = (2.07 +{0.58}/-{0.46} +/- 0.03) ps. Expressed in terms of the difference DeltaGamma_s and average Gamma_s, of the decay rates of the two eigenstates, the results are DeltaGamma_s/Gamma_s = (65 +{25}/-{33} +/- 1)%, and DeltaGamma_s = (0.47 +{0.19}/-{0.24} +/- 0.01) inverse ps." @default.
- W2962837091 created "2019-07-30" @default.
- W2962837091 creator A5039395250 @default.
- W2962837091 date "2004-12-20" @default.
- W2962837091 modified "2023-09-27" @default.
- W2962837091 title "Analysis of Decay-time Dependence of Angular Distributions in B^0_s --> J/psi phi and B^0_d --> J/psi K*0 Decays and Measurement of the Lifetime Difference between B_s Mass Eigenstates" @default.
- W2962837091 hasPublicationYear "2004" @default.
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