Measurements of CP Violation, Mixing and Lifetimes of B Mesons with the BaBar Detector

Details Measurements of CP Violation, Mixing and Lifetimes of B Mesons with the BaBar Detector Measurements of CP Violation, Mixing and Lifetimes of B Mesons with the BaBar Detector

2001-12-10

arxiv.org/abs/hep-ex/0112013v1

AIP Conf.Proc.618:15-26,2002

Physics

High Energy Physics

High Energy Physics - Experiment

14 pages, 9 postscript figues, submitted to 9th International Symposium of Heavy Flavor Physics

Scientific paper

10.1063/1.1478817

We report the observation of CP violation in the $B^0$ meson system. Using a novel technique for time-dependent measurements, we measure a non-zero value for the CP-violating amplitude $\sin 2\beta$ at the 4.1 $\sigma$ level. We also report on precision measurements of the $B^+$ and $B^0$ lifetimes and the $B^0\bar{B}^0$ mixing frequency $\Delta m_d$ obtained with the same technique and on a first measurement of the time-dependent CP-violating amplitude in $B^0\to \pi^+\pi^-$ decays.

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