Combining CP Asymmetries in $B\to K\pi$ Decays

Abstract

We prove an approximate relation, to leading order in dominant terms, between CP-violating rate differences in $B^0/{\bar{B}}^0\to K^{\pm }{\pi }^{\mp }$ and $B^{\pm }\to K^{\pm }{\pi }^0$. We show how data from these two processes may be combined in order to enhance the significance of a nonzero result.

9 pages, latex, no figures, submitted to Phys. Rev. Letters, revised

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• Observation of Exclusive Two-Body B Decays to Kaons and Pions
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• Rescattering Information from $B\to K\bar{K}$ Decays
• Controlling Rescattering Effects in Constraints on the CKM Angle $\gamma$ arising from $B\to \pi K$ Decays
• Final State Interaction Phases in $B\to K\pi$ Decay Amplitudes
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