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Improved Measurements of CP-Violating Asymmetry Amplitudes in B0→π+π- Decays

Aubert, B. et al. (2005) Improved Measurements of CP-Violating Asymmetry Amplitudes in B0→π+π- Decays. Physical Review Letters, 95 (15). p. 151803. ISSN 0031-9007

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Abstract

We present updated measurements of the CP-violating parameters Sππ and Cππ in B0→π+π- decays. Using a sample of 227×106 Υ(4S)→BB̅ decays collected with the BABAR detector at the PEP-II asymmetric-energy e+e- collider at SLAC, we observe 467±33 signal decays and measure Sππ=-0.30±0.17(stat)±0.03(syst) and Cππ=-0.09±0.15(stat)±0.04(syst).

Item Type: Article
Subjects: Q Science > QC Physics
Schools: School of Applied Sciences
Depositing User: Sharon Beastall
Date Deposited: 31 Mar 2011 12:15
Last Modified: 31 Mar 2011 12:15
URI: http://eprints.hud.ac.uk/id/eprint/9985

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