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Measurement of branching fractions in radiative B decays to ηKγ and search for B decays to η′Kγ

Aubert, B. et al. (2006) Measurement of branching fractions in radiative B decays to ηKγ and search for B decays to η′Kγ. Physical Review D, 74 (3). 031102. ISSN 1550-7998

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Abstract

We present measurements of the B→ηKγ branching fractions and upper limits for the B→η′Kγ branching fractions. For B+→ηK+γ we also measure the time-integrated charge asymmetry. The data sample, collected with the BABAR detector at the Stanford Linear Accelerator Center, represents 232×106 produced BB̅ pairs. The results for branching fractions and upper limits at 90% confidence level in units of 10-6 are: B(B0→ηK0γ)=11.3-2.6+2.8±0.6, B(B+→ηK+γ)=10.0±1.3±0.5, B(B0→η′K0γ)<6.6, B(B+→η′K+γ)<4.2. The charge asymmetry in the decay B+→ηK+γ is Ach=-0.09±0.12±0.01. The first errors are statistical and the second systematic.

Item Type: Article
Subjects: Q Science > QC Physics
Schools: School of Applied Sciences
Depositing User: Sharon Beastall
Date Deposited: 13 Apr 2011 12:21
Last Modified: 13 Apr 2011 12:21
URI: http://eprints.hud.ac.uk/id/eprint/10120

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