A complete two-loop, five-gluon helicity amplitude in Yang-Mills theory
A complete two-loop, five-gluon helicity amplitude in Yang-Mills theory
We compute the integrand of the full-colour, two-loop, five-gluon scattering amplitude in pure Yang-Mills theory with all helicities positive, using generalized unitarity cuts. Tree-level BCJ relations, satisfied by amplitudes appearing in the cuts, allow us to deduce all the necessary non-planar information for the full-colour amplitude from known planar data. …