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.
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页数：6
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