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Measurement of B→K^{*}(892)γ Branching Fractions and CP and Isospin Asymmetries

Aubert, B. et al. (2009) Measurement of B→K^{*}(892)γ Branching Fractions and CP and Isospin Asymmetries. Physical Review Letters, 103 (21). p. 211802. ISSN 0031-9007

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Abstract

We present an analysis of the decays B0→K*0(892)γ and B+→K*+(892)γ using a sample of about 383×106 BB̅ events collected with the BABAR detector at the PEP-II asymmetric energy B factory. We measure the branching fractions B(B0→K*0γ)=(4.47±0.10±0.16)×10-5 and B(B+→K*+γ)=(4.22±0.14±0.16)×10-5. We constrain the direct CP asymmetry to be -0.033<A(B→K*γ)<0.028 and the isospin asymmetry to be 0.017<Δ0-<0.116, where the limits are determined by the 90% confidence interval and include both the statistical and systematic uncertainties.

Item Type: Article
Subjects: Q Science > QC Physics
Schools: School of Applied Sciences
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Depositing User: Sharon Beastall
Date Deposited: 04 Jan 2012 10:45
Last Modified: 04 Jan 2012 10:45
URI: http://eprints.hud.ac.uk/id/eprint/12307

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