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arXiv 1004.1606hep-th
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关于N=4 SYM中的双环六边形威尔逊圈剩余函数

On the two-loop hexagon Wilson loop remainder function in N=4 SYM

Jian-Hui Zhang

摘要:

提出了N=4超杨-米尔斯中平面胶子MHV振幅与类光威尔逊圈之间的对偶关系。在六点双圈情况下,平面胶子MHV振幅和类光威尔逊圈的结果一致,但它们都与Bern-Dixon-Smirnov模型相差一个有限余函数.最近Del Duca,Duhr和Smirnov给出了一般运动学中双环六边形威尔逊圈余项函数的解析结果。他们的结果是相当长的,和共形交比的依赖性出现在一个复杂的方式。在这里,我们提出了一个替代的,更紧凑的表示为两个循环六边形威尔逊圈剩余功能。

英文摘要:

A duality relation has been proposed between the planar gluon MHV amplitudes and light-like Wilson loops in N=4 super Yang-Mills. At six-point two-loop, the results for the planar gluon MHV amplitude and for the light-like Wilson loop agree, but they both differ from the Bern-Dixon-Smirnov ansatz by a finite remainder function. Recently Del Duca, Duhr and Smirnov presented an analytical result for the two-loop hexagon Wilson loop remainder function in general kinematics. Their result is rather lengthy, and the dependence on the conformal cross ratios appears in a complicated way. Here we present an alternate, more compact representation for the two-loop hexagon Wilson loop remainder function.

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