BABAR explores CP violation

✍ Scribed by Y. Karyotakis

• Publisher: Elsevier Science
• Year: 2003
• Tongue: English
• Weight: 574 KB
• Volume: 117
• Category: Article
• ISSN: 0920-5632
• DOI: 10.1016/s0920-5632(03)01413-0

✦ Synopsis

The most recent results obtained by the BABAR experiment at the PEP-II asymmetric-energy B Factory at SLAC on CP-violating asymmetries and branching fractions for neutral and charged B decays are presented here. The analysis was performed on a data sample of ∼ 88 million Υ (4S) → BB decays collected between 1999 and 2002. Using b → ccs decays, we measure sin2β = 0.741 ± 0.067 (stat) ± 0.034 (syst). We also present sin2β measurements from, b → sss and b → ccd processes. From neutral B meson decays to two-body final states of charged pions and kaons, we derive for the CP violating parameters, Sππ = 0.02 ± 0.34 ± 0.05 [-0.54, +0.58] and Cππ = -0.30 ± 0.25 ± 0.04 [-0.72, +0.12]. First results for B → π + π -π 0 and K ± π ∓ π 0 final states dominated by the ρ ± resonance, are also presented. ELSEVIER Nuclear Physics B (Proc. Suppl.) 117 (2003) 98-110