Higgs Boson Production in Association with Three Jets
V. Del Duca, A. Frizzo, F. Maltoni
TL;DR
This work computes tree-level Higgs+5-parton scattering amplitudes in the large-$M_t$ limit using an effective Higgs-gluon vertex and organises them via color-decomposed, gauge-invariant sub-amplitudes. It then analyzes Higgs production with three jets through gluon fusion and weak-boson fusion at the LHC, focusing on radiation patterns and the central-jet veto as a discriminator between production modes. The amplitudes are validated against several consistency checks and are positioned to feed into NLO corrections for Higgs+2 jets and to support splitting-function developments. The findings indicate that tightening the central-jet veto enhances separation between gluon-fusion backgrounds and WBF signals, providing practical guidance for Higgs coupling studies at the LHC. Overall, the paper delivers essential analytic tools and phenomenological insights for Higgs with multi-jet final states and jet-veto strategies.
Abstract
The scattering amplitudes for Higgs + 5 partons are computed, with the Higgs boson produced via gluon fusion in the large top-quark mass limit. A parton-level analysis of Higgs + 3 jet production via gluon fusion and via weak-boson fusion is presented, and the effectiveness of a central-jet veto is analysed.