Higgs Boson Production in Association with Multiple Hard Jets

TL;DR

This paper introduces a novel high energy factorisation technique to estimate Higgs boson production with multiple hard jets, extending applicability through amplitude constraints, and implementing it in a Monte Carlo generator for improved predictions.

Contribution

It presents a new method based on high energy factorisation for estimating multi-jet Higgs production, incorporating amplitude constraints and matching to known matrix elements.

Findings

The method approximates real and virtual corrections in high energy limit.

It is implemented in a Monte Carlo generator for practical use.

Example results demonstrate characteristic radiation patterns.

Abstract

We elucidate a new technique for estimating the production of multiple (at least two) hard jets in Higgs production via gluon-gluon fusion. The approach is based upon high energy factorisation, with the region of applicability extended by constraints on the analytic behaviour of the scattering amplitudes stemming from known all-order results. The method approximates both real and virtual corrections, and allows for the resummation in an n-parton inclusive event sample of the terms dominant in the high energy limit. The resulting approximation is matched to the known tree level matrix elements for the production of a Higgs boson in association with 2 and 3 jets, and implemented in a Monte Carlo generator. Example results are presented and characteristic radiation patterns discussed.