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arxiv: 1310.1051 · v2 · submitted 2013-10-03 · ✦ hep-ph · hep-th

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A Two-Loop Five-Gluon Helicity Amplitude in QCD

Simon Badger , Hjalte Frellesvig , Yang Zhang
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classification ✦ hep-ph hep-th
keywords amplitudeperformtwo-loopallowingcalculationcheckscompactcompute
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We compute the planar part of the two-loop five gluon amplitude with all helicities positive. To perform the calculation we develop a D-dimensional generalized unitarity procedure allowing us to reconstruct the amplitude by cutting into products of six-dimensional trees. We find a compact form for the integrand which only requires topologies with six or more propagators. We perform cross checks of the universal infra-red structure using numerical integration techniques.

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Cited by 2 Pith papers

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