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A Surprise in the Amplitude/Wilson Loop Duality

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arxiv 1004.2855 v2 pith:WWH5TA4F submitted 2010-04-16 hep-th

Andreas Brandhuber , Paul Heslop , Panagiotis Katsaroumpas , Dung Nguyen , Bill Spence , Marcus Spradlin , Gabriele Travaglini This is my paper · ORCID
classification hep-th
keywords amplitudeloopswilsonamplitudesdualityequalityapparentlyappropriate
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One of the many remarkable features of MHV scattering amplitudes is their conjectured equality to lightlike polygon Wilson loops, which apparently holds at all orders in perturbation theory as well as non-perturbatively. This duality is usually expressed in terms of purely four-dimensional quantities obtained by appropriate subtraction of the IR and UV divergences from amplitudes and Wilson loops respectively. In this paper we demonstrate, by explicit calculation, the completely unanticipated fact that the equality continues to hold at two loops through order epsilon in dimensional regularization for both the four-particle amplitude and the (parity-even part of the) five-particle amplitude.

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  1. Two-loop MHV Form Factors from the Periodic Wilson Loop

    hep-th 2024-12 conditional novelty 7.0 of 10

    The periodic Wilson loop duality is extended beyond one loop, yielding the two-loop n-particle MHV form factor integrand and new five- and six-particle symbols.

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