We present an explicit expression for a particular n-gluon two loop scattering partial amplitude. Specifically we present an analytic form for the single trace Nc independent colour partial amplitude for the case where all external gluons have positive helicity.
@article{arxiv.2001.11347,
title = {An $n$-point QCD two-loop amplitude},
author = {David C. Dunbar and Warren B. Perkins and Joseph M. W. Strong},
journal= {arXiv preprint arXiv:2001.11347},
year = {2020}
}
Comments
v3 : clarification of eq 7.2, citations updated. arXiv admin note: text overlap with arXiv:1911.06547