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Combining CP Asymmetries in B --> K Pi Decays


We prove an approximate equality, to leading order in dominant terms, between CP-violating rate differences in B0/antiB0 --> K+/- pi+/- and B+/- --> K+/- pi0. We propose several versions of averaged asymmetry measurements in these two processes, for which present data are already capable of yielding a statistically signi cant nonzero result in the most favorable case of weak and strong phases.

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