Author:
Badger Simon,Brønnum-Hansen Christian,Hartanto Heribertus Bayu,Peraro Tiziano
Abstract
Abstract
We present a compact analytic expression for the leading colour two-loop five-gluon amplitude in Yang-Mills theory with a single negative helicity and four positive helicities. The analytic result is reconstructed from numerical evaluations over finite fields. The numerical method combines integrand reduction, integration-by-parts identities and Laurent expansion into a basis of pentagon functions to compute the coefficients directly from six-dimensional generalised unitarity cuts.
Publisher
Springer Science and Business Media LLC
Subject
Nuclear and High Energy Physics
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