Magic identities for conformal four-point integrals

被引:323
作者
Drummond, James M. [1 ]
Henn, Johannes
Smirnov, Vladimir A.
Sokatchev, Emery
机构
[1] Lab Annecy Le Vieux Phys Particules, BP 110, F-74941 Annecy Le Vieux, France
[2] Moscow MV Lomonosov State Univ, Inst Nucl Phys, Moscow 119992, Russia
关键词
supersymmetric gauge theory; NLO computations; conformal and W symmetry;
D O I
10.1088/1126-6708/2007/01/064
中图分类号
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号
摘要
We propose an iterative procedure for constructing classes of off-shell four-point conformal integrals which are identical. The proof of the identity is based on the conformal properties of a subintegral common for the whole class. The simplest example are the so-called 'triple scalar box' and 'tennis court' integrals. In this case we also give an independent proof using the method of Mellin-Barnes representation which can be applied in a similar way for general off-shell Feynman integrals.
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页数:15
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