CP violation, B mixing and B lifetime results from the BABAR experiment

2001/05/23 by J. Beringer, Beringer, Juerg
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #Particle Detector Development and Performance #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions

paper · pdf · doi:10.48550/arxiv.hep-ex/0105073

openalex publication_date 2001/05/23 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

The BaBar detector at the PEP-II asymmetric B Factory at SLAC collected a sample of 23M B-anti-B pairs in the years 1999 and 2000. Using this data sample, we measure the amplitude of the time-dependent CP-violating asymmetry in neutral B decays to the CP eigenstates B0 --> J/psi K0S, B0 --> psi(2S) K0S and B0 --> J/psi K0L. We find a value of sin2beta = 0.34 +/- 0.20 (stat) +/- 0.05 (syst). We also present preliminary measurements of the B⁰-anti-B⁰ oscillation frequency and of the lifetimes of charged and neutral B mesons.

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