New simpler method of matching NLO corrections with parton shower Monte Carlo

TL;DR

This paper introduces a simplified method called KrkNLO for integrating NLO QCD corrections into parton shower Monte Carlo simulations, utilizing a new MC factorization scheme, with preliminary results for Higgs production.

Contribution

The paper presents a novel, simpler approach to match NLO corrections with parton shower MCs using the KrkNLO method and a newly defined MC factorization scheme.

Findings

Preliminary numerical results for Higgs-boson production.

Demonstration of the method's simplicity compared to existing approaches.

Potential for improved accuracy and efficiency in simulations.

Abstract

Next steps in development of the KrkNLO method of implementing NLO QCD corrections to hard processes in parton shower Monte Carlo programs are presented. This new method is a simpler alternative to other well-known approaches, such as MC@NLO and POWHEG. The KrkNLO method owns its simplicity to the use of parton distribution functions (PDFs) in a new, so-called Monte Carlo (MC), factorization scheme which was recently fully defined for the first time. Preliminary numerical results for the Higgs-boson production process are also presented.