NLO Higgs boson production plus one and two jets using the POWHEG BOX, MadGraph4 and MCFM

TL;DR

This paper introduces a next-to-leading order calculation for Higgs boson production with one and two jets, integrated with shower Monte Carlo programs using the POWHEG method, and features a new interface with MadGraph4 and MCFM for virtual corrections.

Contribution

It presents a novel implementation of NLO Higgs production with jets using the POWHEG BOX, MadGraph4, and MCFM, enabling automated code generation and improved phenomenological analysis.

Findings

The new interface simplifies code generation for Higgs plus jets processes.

The NLO calculations agree well with fixed-order results and other generators.

The approach enhances the accuracy of Higgs production simulations with jets.

Abstract

We present a next-to-leading order calculation of Higgs boson production plus one and two jets via gluon fusion interfaced to shower Monte Carlo programs, implemented according to the POWHEG method. For this implementation we have used a new interface of the POWHEG BOX with MadGraph4, that generates the codes for generic Born and real processes automatically. The virtual corrections have been taken from the MCFM code. We carry out a simple phenomenological study of our generators, comparing them among each other and with fixed next-to-leading order results.