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arXiv · hep-ex/0607037

Measurement of B Decays to phi K gamma

The BABAR Collaboration·B. Aubert
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Abstract

We measure the branching fraction of the radiative B- decay B(B- -> phi K- gamma) = (3.46 +/- 0.57^{+0.39}_{-0.37}) 10^-6, and set an upper limit on the radiative B0 decay B(B0 -> phi K0 gamma) < 2.71 10^-6 at 90% confidence level. We also measure the direct CP asymmetry of the B- -> phi K- gamma mode A_CP = (-26.4 +/- 14.3 +/- 4.8)%. The uncertainties are statistical and systematic, respectively. These measurements are based on 207 1/fb of data collected at the Y4S resonance with the BABAR detector.

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The BABAR Collaboration, B. Aubert. 2006-07-20. Measurement of B Decays to phi K gamma. https://arxiv.org/abs/hep-ex/0607037

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