Semileptonic B Meson Decays and Interfering Amplitudes
K. Honscheid, K. Schubert, R. Waldi
Abstract
Consequences of the interference between external and internal spectator amplitudes for the lifetimes and semileptonic decay fractions of B0 and B+ mesons are discussed. Extrapolating from the constructive interference observed in 11 exclusive hadronic B decays we find an inclusive semileptonic decay fraction of (11.2 0.5 1.7)\%, significantly closer to the experimental results than previous predictions.
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