Corrections of order ααS to W boson decays

被引：15
作者：
Kara, Dominik [1 ]
机构：
[1] KIT, Inst Theoret Teilchenphys, D-76128 Karlsruhe, Germany
来源：
NUCLEAR PHYSICS B | 2013年 / 877卷 / 03期
关键词：
RADIATIVE-CORRECTIONS; ASYMPTOTIC EXPANSIONS; TRANSVERSE ENERGY; FEYNMAN DIAGRAMS; QCD; O(ALPHA-ALPHA(S)); COMPUTATION; ELECTRONS; MOMENTUM; MASS;
D O I：
10.1016/j.nuclphysb.2013.10.024
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 present the calculation of the mixed two-loop QCD/electroweak corrections to hadronic W boson decays within the Standard Model. The optical theorem is applied to the W boson two-point function. The multi-scale integrals are computed with the help of asymptotic expansions, which factorize the three-loop diagrams into one- and two-loop vacuum and propagator-type integrals. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码：683 / 718
页数：36
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