### Abstract

The short distance QCD corrections to b → sγγ are calculated in the leading logarithmic approximation. The equivalence of operator basis reduction for S-matrix elements by using the equations of motion or by proving a low energy theorem is discussed. We apply the above results to the exclusive B_{s} → γγ decay. The branching ratio of this decay is found to be 5 × 10^{-7} in the Standard Model. We also found that QCD corrections modify considerably the ratio between CP-even and CP-odd two-photon amplitudes.

Original language | English |
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Pages (from-to) | 395-401 |

Number of pages | 7 |

Journal | Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics |

Volume | 415 |

Issue number | 4 |

DOIs | |

Publication status | Published - 1997 Dec 25 |

### ASJC Scopus subject areas

- Nuclear and High Energy Physics

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## Cite this

Chang, C. H. V., Lin, G. L., & Yao, Y. P. (1997). QCD corrections to b → sγγ and exclusive B

_{s}→ sγγ decay.*Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics*,*415*(4), 395-401. https://doi.org/10.1016/S0370-2693(97)01208-2