We present results for the two-loop helicity amplitudes entering the NLO QCD corrections to the production of a Higgs boson in association with a Z-boson in gluon fusion. The two-loop integrals, involving massive top quarks, are calculated numerically. Results for the interference of the finite part of the two-loop amplitudes with the Born amplitude are shown as a function of the two kinematic invariants on which the amplitudes depend.
@article{arxiv.2011.12325,
title = {$ZH$ production in gluon fusion: two-loop amplitudes with full top quark mass dependence},
author = {Long Chen and Gudrun Heinrich and Stephen P. Jones and Matthias Kerner and Jonas Klappert and Johannes Schlenk},
journal= {arXiv preprint arXiv:2011.12325},
year = {2021}
}
Comments
25 pages, 7 figures; matches version published in JHEP