Semileptonic decays in the limit of a heavy daughter quark

被引：11

作者：

Dowling, Matthew ^{[1
]}

Piclum, Jan H. ^{[1
]}

Czarnecki, Andrzej ^{[1
]}

机构：

[1] Univ Alberta, Dept Phys, Edmonton, AB T6G 2G7, Canada

来源：

PHYSICAL REVIEW D | 2008年 / 78卷 / 07期

关键词：

D O I：

10.1103/PhysRevD.78.074024

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The rate of the semileptonic decay b -> c center dot nu is calculated with O(alpha(2)(s)) accuracy, as an expansion around the limit of equal masses of the b and c quarks. Recent results obtained around the limit of the c-quark much lighter than b are confirmed. Details of the new expansion method are described.

引用

页数：6

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