Systematics of one-loop scattering amplitudes in N=4 super-Yang-Mills theories

被引：14
|
作者：
Luo, MX [1 ]
Wen, CK [1 ]
机构：
[1] Zhejiang Univ, Zhejiang Inst Modern Phys, Dept Phys, Hangzhou 310027, Zhejiang, Peoples R China
来源：
PHYSICS LETTERS B | 2005年 / 609卷 / 1-2期
基金：
中国国家自然科学基金;
关键词：
MHV; one-loop; supersymmetry; Yang-Mills theory;
D O I：
10.1016/j.physletb.2005.01.041
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
One-loop scattering amplitudes in N = 4 super-Yang-Mills (SYM) theories are analyzed in the paradigm of maximal helicity violating Feynman diagrams. There are very limited number of loop integrals to be evaluated. For a process with n external particles, there are only [n/2] - 1 generically independent integrals. Furthermore, the relations between leading N-c amplitudes A(n;1) and sub-leading amplitudes A(n;c) are found to be identical to those obtained from conventional field theory calculations, which can be interpreted as an indirect support for the paradigm. (C) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码：86 / 94
页数：9
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