Null polygonal Wilson loops in full N=4 superspace

被引：16
|
作者：
Beisert, Niklas [1 ,2 ]
He, Song [2 ]
Schwab, Burkhard U. W. [1 ,2 ]
Vergu, Cristian [1 ,3 ]
机构：
[1] ETH, Inst Theoret Phys, CH-8093 Zurich, Switzerland
[2] Albert Einstein Inst, Max Planck Inst Gravitat Phys, D-14476 Potsdam, Germany
[3] Brown Univ, Dept Phys, Providence, RI 02912 USA
来源：
JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL | 2012年 / 45卷 / 26期
基金：
美国国家科学基金会; 瑞士国家科学基金会;
关键词：
YANG-MILLS; AMPLITUDES; INTEGRABILITY;
D O I：
10.1088/1751-8113/45/26/265402
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We compute the one-loop expectation value of light-like polygonal Wilson loops in N = 4 super-Yang-Mills theory in full superspace. When projecting to chiral superspace, we recover the known results for the tree-level next-to-maximally-helicity-violating scattering amplitude. The one-loop maximally-helicity-violating amplitude is also included in our result but there are additional terms which do not immediately correspond to scattering amplitudes. We finally discuss different regularizations and their Yangian anomalies.
引用
收藏
页数：47
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