Monte Carlo Tools for charged Higgs boson production

TL;DR

This paper reviews two Monte Carlo simulation methods, MC@NLO and POWHEG, for modeling charged Higgs boson production with a top quark at NLO in QCD, comparing their approaches and discussing interference effects.

Contribution

It introduces and compares two NLO Monte Carlo tools, MC@NLO and POWHEG, for simulating charged Higgs production in association with a top quark.

Findings

Both methods effectively match NLO matrix elements with parton showers.

Comparison reveals differences in predictions for charged Higgs production.

Interference effects are significant for light charged Higgs scenarios.

Abstract

In this short review we discuss two implementations of the charged Higgs boson production process in association with a top quark in Monte Carlo event generators at next-to-leading order in QCD. We introduce the MC@NLO and the POWHEG method of matching next-to-leading order matrix elements with parton showers and compare both methods analyzing the charged Higgs boson production process in association with a top quark. We shortly discuss the case of a light charged Higgs boson where the associated charged Higgs production interferes with the charged Higgs production via t tbar-production and subsequent decay of the top quark.