Complete three-loop QCD corrections to the decay H → γγ

被引：21
|
作者：
Maierhoefer, P. [1 ]
Marquard, P. [2 ]
机构：
[1] Univ Zurich, Inst Theoret Phys, CH-8057 Zurich, Switzerland
[2] KIT, Inst Theoret Teilchenphys, D-76128 Karlsruhe, Germany
来源：
PHYSICS LETTERS B | 2013年 / 721卷 / 1-3期
基金：
瑞士国家科学基金会;
关键词：
Perturbative calculations; Quantum chromodynamics; Higgs; MODEL HIGGS-BOSON; STANDARD MODEL; 2-PHOTON DECAY; MASS; POLE;
D O I：
10.1016/j.physletb.2013.02.040
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We present the result for the three-loop singlet QCD corrections to the decay of a Higgs boson into two photons and improve the calculation for the non-singlet case. With the new result presented, the decay width Gamma(H -> gamma gamma) is completely known at O(G(F)alpha(2)alpha(2)(s), G(F)alpha(3)). (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码：131 / 135
页数：5
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