Bounds on the CP Asymmetry in b → sγ Decays
نویسندگان
چکیده
We have measured the CP asymmetry ACP ≡ (Γ(b → sγ) − Γ(b̄ → s̄γ))/(Γ(b → sγ) + Γ(b̄ → s̄γ)) to be ACP = (−0.079 ± 0.108 ± 0.022)(1.0 ± 0.030), implying that, at 90% confidence level, ACP lies between –0.27 and +0.10. These limits rule out some extreme non-Standard-Model predictions, but are consistent with most, as well as with the Standard Model.
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