NNLOPS simulation of Higgs boson production
Keith Hamilton, Paolo Nason, Emanuele Re, Giulia Zanderighi
TL;DR
This paper presents a detailed simulation of Higgs boson production via gluon fusion, achieving NNLO accuracy and matching it with parton showers for a comprehensive, exclusive hadron-level description of the final state.
Contribution
It introduces a novel simulation framework combining NNLO accuracy with parton shower matching using the POWHEG and MINLO methods, enhanced by a reweighting procedure.
Findings
Achieves NNLO precision in Higgs boson production simulation.
Provides a fully exclusive, hadron-level event generator.
Demonstrates improved accuracy over previous NLO-based methods.
Abstract
We detail a simulation of Higgs boson production via gluon fusion, accurate at next-to-next-to-leading order in the strong coupling, including matching to a parton shower, yielding a fully exclusive, hadron-level description of the final-state. The approach relies on the POWHEG method for merging the NLO Higgs plus jet cross-section with the parton shower, and on the MINLO method to simultaneously achieve NLO accuracy for inclusive Higgs boson production. The NNLO accuracy is reached by a reweighting procedure making use of the HNNLO program.
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