Multiple singular emission in gauge theories

被引：93
作者：
Kosower, DA [1 ]
机构：
[1] Ctr Etud Saclay, Serv Phys Theor, F-91191 Gif Sur Yvette, France
来源：
PHYSICAL REVIEW D | 2003年 / 67卷 / 11期
关键词：
D O I：
10.1103/PhysRevD.67.116003
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
I derive a class of functions unifying all singular limits for the emission of a given number of soft or collinear gluons in tree-level gauge-theory amplitudes. Each function is a generalization of the single-emission antenna function of my earlier paper. The helicity-summed squares of these functions are thus also generalizations to multiple singular emission of the Catani-Seymour dipole factorization function.
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页数：22
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