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Measurements of Branching Fractions and Time-Dependent CP-Violating Asymmetries in B→η′K Decays

Aubert, B. et al. (2005) Measurements of Branching Fractions and Time-Dependent CP-Violating Asymmetries in B→η′K Decays. Physical Review Letters, 94 (19). p. 191802. ISSN 0031-9007

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Abstract

We present measurements of the B→η′K branching fractions; for B+→η′K+ we measure also the time-integrated charge asymmetry Ach, and for B0→η′KS0 the time-dependent CP-violation parameters S and C. The data sample corresponds to 232×106 BB̅ pairs produced by e+e- annihilation at the Υ(4S). The results are B(B→η′K+)=(68.9±2.0±3.2)×10-6, B(B0→η′K0)=(67.4±3.3±3.2)×10-6, Ach=0.033±0.028±0.005, S=0.30±0.14±0.02, and C=-0.21±0.10±0.02, where the first error quoted is statistical and the second is systematic.

Item Type: Article
Subjects: Q Science > QC Physics
Schools: School of Applied Sciences
Depositing User: Sharon Beastall
Date Deposited: 31 Mar 2011 11:20
Last Modified: 31 Mar 2011 11:20
URI: http://eprints.hud.ac.uk/id/eprint/9980

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