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- W2963909277 abstract "We review the perturbative QCD formalism for exclusive heavy meson decays, concentrating on the three-scale factorization theorem for nonleptonic processes. The formalism is then extended to the radiative decay $Bto K^*gamma$, which occurs through penguin diagrams. It is observed that the contributions from the operators other than the penguin one $bto sgamma$ are not negligible. From the best fit to the experimental data of the branching ratio ${cal B}(Bto K^*gamma)$, we extract the $B$ meson wave function, which possesses a sharp peak in the region with a small momentum fraction." @default.
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- W2963909277 date "1998-10-02" @default.
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- W2963909277 title "Perturbative QCD analysis of exclusive B meson decays" @default.
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