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

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• 作者：Jian-Hui Zhang^a ; ^{zhangjh@mppmu.mpg.de}
• 关键词： ; none ; color ; black"" href=""/science?_ob=MathURL&_method=retrieve&_udi=B6TVN-522SHF5-1&_mathId=mml3&_user=1019048&_cdi=5539&_pii=S0370269311001031&_rdoc=19&_issn=03702693&_acct=C000038638&_version=1&_userid=691231
• 刊名：Physics Letters B
• 出版年：2011
• 出版时间：14 March 2011
• 年：2011
• 卷：697
• 期：4
• 页码：370-377
• 全文大小：177 K

文摘

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.