## Abstract

We apply the perturbative QCD factorization theorem developed recently for nonleptonic heavy meson decays to the radiative decay B→K* γ. In this formalism the evolution of the Wilson coefficients from the W boson mass down to the characteristic scale of the decay process is governed by the effective weak Hamiltonian. The evolution from the characteristic scale to a lower hadronic scale is formulated by the Sudakov resummation. In addition to computing the dominant contribution arising from the magnetic-penguin operator O_{7}, we also calculate the contributions of four-quark operators. By fitting our prediction for the branching ratio of the B→K* γ decay to the CLEO data, we determine the B meson wave function that possesses a sharp peak at a low momentum fraction.

Original language | English |
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Pages (from-to) | 1-10 |

Number of pages | 10 |

Journal | Physical Review D - Particles, Fields, Gravitation and Cosmology |

Volume | 60 |

Issue number | 5 |

DOIs | |

State | Published - 1 Sep 1999 |