We compute the two-loop massless QCD corrections to the four-point amplitude g+g→H+H resulting from effective operator insertions that describe the interaction of a Higgs boson with gluons in the infinite top quark mass limit. This amplitude is an essential ingredient to the third-order QCD corrections to Higgs boson pair production. We have implemented our results in a numerical code that can be used for further phenomenological studies.
@article{arxiv.1809.05388,
title = {Two-loop massless QCD corrections to the $g+g \rightarrow H+H$ four-point amplitude},
author = {Pulak Banerjee and Sophia Borowka and Prasanna K. Dhani and Thomas Gehrmann and V. Ravindran},
journal= {arXiv preprint arXiv:1809.05388},
year = {2018}
}