Two-loop four-gluon amplitudes in N=4 super-Yang-Mills

被引：226
|
作者：
Bern, Z
Rozowsky, JS
Yan, B
机构：
[1] Department of Physics, Univ. of California at Los Angeles, Los Angeles
来源：
PHYSICS LETTERS B | 1997年 / 401卷 / 3-4期
关键词：
D O I：
10.1016/S0370-2693(97)00413-9
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Using cutting techniques we obtain the two-loop N = 4 super-Yang-Mills helicity amplitudes for four-gluon scattering in terms of scalar integral functions, The N = 4 amplitudes are considerably simpler than corresponding QCD amplitudes and therefore provide a testing ground for exploring two-loop amplitudes. The amplitudes are constructed directly in terms of gauge invariant quantities and therefore remain relatively compact throughout the calculation. We also present a conjecture for the leading color four-gluon amplitudes to all orders in the perturbative expansion. (C) 1997 Published by Elsevier Science B.V.
引用
收藏
页码：273 / 282
页数：10
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