Standard Model Higgs boson production in association with a top anti-top pair at NLO with parton showering

TL;DR

This paper provides precise predictions for the production of a Standard Model Higgs boson with a top-antitop pair at NLO accuracy, including parton shower effects, to improve understanding of this process at colliders.

Contribution

It introduces a method to compute NLO predictions for Higgs plus top-antitop production with parton showering using HELAC-Oneloop, POWHEG-Box, PYTHIA, and HERWIG, enabling realistic collider simulations.

Findings

NLO cross section predictions for Higgs + top-antitop production.

Implementation of parton showering and hadronization effects.

Enhanced accuracy in modeling Higgs production at colliders.

Abstract

We present predictions for the production cross section of a Standard Model Higgs boson in association with a top-antitop pair at next-to-leading order accuracy using matrix elements obtained from the HELAC-Oneloop package. The NLO prediction was interfaced to the PYTHIA and HERWIG shower Monte Carlo programs with the help of POWHEG-Box, allowing for decays of massive particles, showering and hadronization, thus leading to final results at the hadron level.