CHARM QUARK MASS DEPENDENCE OF QCD CORRECTIONS TO NONLEPTONIC INCLUSIVE B-DECAYS

被引：87

作者：

BAGAN, E

BALL, P

BRAUN, VM

GOSDZINSKY, P

机构：

[1] TECH UNIV MUNICH,DEPT PHYS T30,D-85747 GARCHING,GERMANY

[2] MAX PLANCK INST PHYS & ASTROPHYS,D-80805 MUNICH,GERMANY

[3] UNIV AUTONOMA BARCELONA,DEPT FIS,FIS TEOR GRP,E-08193 BARCELONA,SPAIN

[4] UNIV AUTONOMA BARCELONA,INST FIS ALTES ENERGIES,E-08193 BARCELONA,SPAIN

来源：

NUCLEAR PHYSICS B | 1994年 / 432卷 / 1-2期

关键词：

D O I：

10.1016/0550-3213(94)90591-6

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：

We calculate the radiative corrections to the nonleptonic inclusive B decay mode b --> c(u) over bard$ taking into account the charm quark mass. Compared to the massless case, corrections resulting from a nonvanishing c quark mass increase the nonleptonic rate by (4-8)%, depending on the renormalization point. As a by-product of our calculation, we obtain an analytic expression for the radiative correction to the semileptonic decay b --> <u tau(v)over bar> taking into account the tau lepton mass, and estimate the c quark mass effects on the nonleptonic decay mode b --> c(c) over bars$.

引用

页码：3 / 38

页数：36

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