We calculate the next-to-leading order correction to the impact factor (vertex) for the production of a forward Higgs boson, obtained in the infinite top-mass limit. We present the result both in the momentum representation and as superposition of the eigenfunctions of the leading-order BFKL kernel. This impact factor is a necessary ingredient for the description of the inclusive hadroproduction of a forward Higgs in the limit of small Bjorken x, as well as for the study of inclusive forward emissions of a Higgs boson in association with a backward identified object.
@article{arxiv.2205.02681,
title = {The next-to-leading order Higgs impact factor in the infinite top-mass limit},
author = {Francesco Giovanni Celiberto and Michael Fucilla and Dmitry Yu. Ivanov and Mohammed M. A. Mohammed and Alessandro Papa},
journal= {arXiv preprint arXiv:2205.02681},
year = {2022}
}