3 years ago

Analytic all-plus gluon amplitudes in QCD.

Guy R. Jehu, David C. Dunbar, John H. Godwin, Warren B. Perkins

We detail the calculation of two-loop all-plus helicity amplitudes for pure Yang-Mills theory. The four dimensional unitarity methods and augmented recursion techniques we have developed, together with a knowledge of the singular structure of the amplitudes allow us to compute these in compact analytic forms. Specifically we present the computation and analytic results for the six- and seven-gluon leading colour two-loop amplitudes these being the first QCD two-loop amplitudes beyond five-points.

Publisher URL: http://arxiv.org/abs/1710.10071

DOI: arXiv:1710.10071v1

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