MHV Amplitudes in N=4 Super Yang-Mills and Wilson Loops

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dc.creatorBrandhuber, Andreas
dc.creatorHeslop, Paul
dc.creatorTravaglini, Gabriele
dc.date2007-07-09
dc.date2007-07-13
dc.date.accessioned2026-07-07T11:17:38Z
dc.date.available2026-07-07T11:17:38Z
dc.descriptionIt is a remarkable fact that MHV amplitudes in maximally supersymmetric Yang-Mills theory at arbitrary loop order can be written as the product of the tree amplitude with the same helicity configuration and a universal, helicity-blind function of the kinematic invariants. In this note we show how for one-loop MHV amplitudes with an arbitrary number of external legs this universal function can be derived using Wilson loops. Our result is in precise agreement with the known expression for the infinite sequence of MHV amplitudes in N=4 super Yang-Mills. In the four-point case, we are able to reproduce the expression of the amplitude to all orders in the dimensional regularisation parameter epsilon. This prescription disentangles cleanly infrared divergences and finite terms, and leads to an intriguing one-to-one mapping between certain Wilson loop diagrams and (finite) two-mass easy box functions.
dc.description17 pages, 3 figures. v2: minor clarifications and references added
dc.identifierhttps://arxiv.org/abs/0707.1153
dc.identifierhttp://arxiv.org/abs/0707.1153
dc.identifierNucl.Phys.B794:231-243,2008
dc.identifierdoi:10.1016/j.nuclphysb.2007.11.002
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/193073
dc.subjectHigh Energy Physics - Theory
dc.subjectHigh Energy Physics - Phenomenology
dc.titleMHV Amplitudes in N=4 Super Yang-Mills and Wilson Loops
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