“Yang-Mills All-Plus Amplitudes: Two Loops for the Price of One”

by Sebastian Pögel (University of Mainz)

Friday 22 Apr 2022, 11:00 → 12:00 Europe/Berlin

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On-shell methods have led to great progress in computing scattering amplitudes, leading to the current NNLO QCD frontier relevant to LHC phenomenology.  Part of this progress has come from studying simpler classes of amplitudes, such as amplitudes in N=4 supersymmetric Yang--Mills theory.  I present work at two loops on the next-simplest class of amplitudes, those with all gluons of identical helicity in nonsupersymmetric Yang--Mills.  I show how to compute their rational terms, the hardest parts, via well-understood one-loop techniques.