INCLUSIVE PHOTON ENERGY-SPECTRUM IN RARE B DECAYS

被引：163

作者：

ALI, A

GREUB, C

机构：

[1] Deutsches Elektronen Synchroton DESY, Hamburg

来源：

ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS | 1991年 / 49卷 / 03期

关键词：

D O I：

10.1007/BF01549696

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

Inclusive photon energy spectrum and decay rate for the rare radiative decays of the B hadrons, B --> gamma + X(s) (here X(s) denotes hadrons with total strangeness quantum number S = -1), are calculated in the standard theory of electroweak interactions, using the b quark decay model. The calculations have been done in the framework of an effective low-energy Lagrangian based on the gauge invariant operators of dimension 6. The large QCD effects, contained in the Wilson coefficients of these operators, are included in our approach. The shape of the photon energy spectrum and the branching ratio BR(B --> gamma + X(s)) are sensitive to the top quark mass.

引用

页码：431 / 438

页数：8

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