RVV×V: interference contributions to inclusive Higgs boson and Drell-Yan production at N4LO in QCD
摘要
We present partonic contributions to the inclusive gluon-fusion Higgs boson and Drell-Yan production cross sections at Hadron colliders at next-to-next-to-next-to-next-to-leading order (N4LO). Specifically, we compute contributions due to the interference of one-loop amplitudes with two-loop amplitudes with three QCD partons and the Higgs boson or a virtual photon. Our result is in the form of a Laurent expansion in the dimensional regulator ϵ, the coefficients of which are analytic functions in the ratio of the Higgs boson or virtual photon mass to the partonic center-of-mass energy. Furthermore, we introduce and deploy a new package implemented in Mathematica, Cifar (“Color Invariant Feynman Amplitude Reducer”), to express color factors in terms of general Casimir invariants of simple compact Lie algebras.