Next-to-next-to-leading order calculations for heavy-to-light decays

被引：33

作者：

Blokland, I ^{[1
]}

Czarnecki, A

Slusarczyk, M

Tkachov, F

机构：

[1] Univ Alberta, Dept Phys, Edmonton, AB T6G 2J1, Canada

[2] Univ Victoria, Dept Phys & Astron, Victoria, BC V8P 5C2, Canada

[3] Jagiellonian Univ, Inst Phys, PL-30059 Krakow, Poland

[4] Russian Acad Sci, Inst Nucl Res, Moscow 117312, Russia

来源：

PHYSICAL REVIEW D | 2005年 / 71卷 / 05期

关键词：

D O I：

10.1103/PhysRevD.71.054004

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present technical aspects of next-to-next-to-leading order calculations for heavy-to-light decays such as top quark decay, semileptonic b quark decay into a u quark, muon decay, and radiative decays like b -> s gamma. Algebraic reduction of integrals to a set of master integrals is described, methods of determining the master integrals are presented, and a complete list of master integrals is given. As a sample. accuracy. application, the top quark decay width is calculated to O(alpha(2)(s)) accuracy.

引用

页码：1 / 12

页数：12

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