Gluon-gluon antenna functions from Higgs boson decay

被引：118
|
作者：
Ridder, AGD [1 ]
Gehrmann, T
Glover, EWN
机构：
[1] ETH, Inst Theoret Phys, CH-8093 Zurich, Switzerland
[2] Univ Zurich, Inst Theoret Phys, CH-8057 Zurich, Switzerland
[3] Univ Durham, Inst Particle Phys Phenomenol, Durham DH1 3LE, England
来源：
PHYSICS LETTERS B | 2005年 / 612卷 / 1-2期
关键词：
D O I：
10.1016/j.physletb.2005.03.003
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Antenna functions describe the infrared singular behaviour of colour-ordered QCD matrix elements due to the emission of unresolved partons inside an antenna formed by two hard partons. In this Letter, we show that antenna functions for hard gluongluon pairs can be systematically derived from the effective Lagrangian describing Higgs boson decay into gluons, and compute the infrared structure of the colour-ordered Higgs boson decay matrix elements at NLO and NNLO. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码：49 / 60
页数：12
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