$b\to sγ$ Branching Fraction and CP Asymmetry

Details $b\to sγ$ Branching Fraction and CP Asymmetry $b\to sγ$ Branching Fraction and CP Asymmetry

1999-08-06

arxiv.org/abs/hep-ex/9908022v2

Physics

High Energy Physics

High Energy Physics - Experiment

9 pages postscript, also available through http://w4.lns.cornell.edu/public/CLNS

Scientific paper

We present preliminary results on $b \to s \gamma$ from the CLEO experiment. An updated result on the branching fraction is reported at $\cal{B}$$(b \to s \gamma) = (3.15 \pm 0.35 \pm 0.32 \pm 0.26)\times 10^{-4}$, where the first uncertainty is statistical, the second is systematic, and the third for model dependence. We also describe a new analysis performed to search for CP asymmetry in $b \to s \gamma$ decays. We observe no such asymmetry and set conservative limits at $-0.09 <$ $\cal{A}$ $< 0.42$.

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