Finite quark-mass effects in the NNLOPS POWHEG+MiNLO Higgs generator

We include finite top- and bottom-mass effects in the next-to-next-to-leading order parton shower (NNLOPS) event generator for inclusive Higgs boson production in gluon fusion based upon the POWHEG+MiNLO approach. Since fixed-order results for quark-mass effects only reach NLO accuracy, we add them...

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Detalles Bibliográficos
Autores principales: Hamilton, Keith, Nason, Paolo, Zanderighi, Giulia
Lenguaje:eng
Publicado: 2015
Materias:
Particle Physics - Phenomenology
Acceso en línea:https://dx.doi.org/10.1007/JHEP05(2015)140
http://cds.cern.ch/record/1982355
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author Hamilton, Keith
Nason, Paolo
Zanderighi, Giulia
author_facet Hamilton, Keith
Nason, Paolo
Zanderighi, Giulia
author_sort Hamilton, Keith
collection CERN
description We include finite top- and bottom-mass effects in the next-to-next-to-leading order parton shower (NNLOPS) event generator for inclusive Higgs boson production in gluon fusion based upon the POWHEG+MiNLO approach. Since fixed-order results for quark-mass effects only reach NLO accuracy, we add them to the NNLOPS generator at that accuracy. We explore uncertainties related to the unknown all-order logarithmic structure of bottom-mass effects by comparing the assumption of full exponentiation to no exponentiation at all. Phenomenological results showing the effects of finite quark-masses in the NNLOPS simulation are presented. These suggest that the aforementioned uncertainty is well contained within the envelope of plain renormalization and factorization scale uncertainties.
id cern-1982355
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2015
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spelling cern-19823552022-08-10T13:08:25Zdoi:10.1007/JHEP05(2015)140http://cds.cern.ch/record/1982355engHamilton, KeithNason, PaoloZanderighi, GiuliaFinite quark-mass effects in the NNLOPS POWHEG+MiNLO Higgs generatorParticle Physics - PhenomenologyWe include finite top- and bottom-mass effects in the next-to-next-to-leading order parton shower (NNLOPS) event generator for inclusive Higgs boson production in gluon fusion based upon the POWHEG+MiNLO approach. Since fixed-order results for quark-mass effects only reach NLO accuracy, we add them to the NNLOPS generator at that accuracy. We explore uncertainties related to the unknown all-order logarithmic structure of bottom-mass effects by comparing the assumption of full exponentiation to no exponentiation at all. Phenomenological results showing the effects of finite quark-masses in the NNLOPS simulation are presented. These suggest that the aforementioned uncertainty is well contained within the envelope of plain renormalization and factorization scale uncertainties.We include finite top- and bottom-mass effects in the next-to-next-to-leading order parton shower (NNLOPS) event generator for inclusive Higgs boson production in gluon fusion based upon the POWHEG+MiNLO approach. Since fixed-order results for quark-mass effects only reach NLO accuracy, we add them to the NNLOPS generator at that accuracy. We explore uncertainties related to the unknown all-order logarithmic structure of bottom-mass effects by comparing the assumption of full exponentiation to no exponentiation at all. Phenomenological results showing the effects of finite quark-masses in the NNLOPS simulation are presented. These suggest that the aforementioned uncertainty is well contained within the envelope of plain renormalization and factorization scale uncertainties.We include finite top- and bottom-mass effects in the next-to-next-to-leading order parton shower (NNLOPS) event generator for inclusive Higgs boson production in gluon fusion based upon the POWHEG+MiNLO approach. Since fixed-order results for quark-mass effects only reach NLO accuracy, we add them to the NNLOPS generator at that accuracy. We explore uncertainties related to the unknown all-order logarithmic structure of bottom-mass effects by comparing the assumption of full exponentiation to no exponentiation at all. Phenomenological results showing the effects of finite quark-masses in the NNLOPS simulation are presented. These suggest that the aforementioned uncertainty is well contained within the envelope of plain renormalization and factorization scale uncertainties.arXiv:1501.04637CERN-PH-TH-2015-006CERN-PH-TH-2015-006oai:cds.cern.ch:19823552015-01-19
spellingShingle Particle Physics - Phenomenology
Hamilton, Keith
Nason, Paolo
Zanderighi, Giulia
Finite quark-mass effects in the NNLOPS POWHEG+MiNLO Higgs generator
title Finite quark-mass effects in the NNLOPS POWHEG+MiNLO Higgs generator
title_full Finite quark-mass effects in the NNLOPS POWHEG+MiNLO Higgs generator
title_fullStr Finite quark-mass effects in the NNLOPS POWHEG+MiNLO Higgs generator
title_full_unstemmed Finite quark-mass effects in the NNLOPS POWHEG+MiNLO Higgs generator
title_short Finite quark-mass effects in the NNLOPS POWHEG+MiNLO Higgs generator
title_sort finite quark-mass effects in the nnlops powheg+minlo higgs generator
topic Particle Physics - Phenomenology
url https://dx.doi.org/10.1007/JHEP05(2015)140
http://cds.cern.ch/record/1982355
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AT nasonpaolo finitequarkmasseffectsinthennlopspowhegminlohiggsgenerator
AT zanderighigiulia finitequarkmasseffectsinthennlopspowhegminlohiggsgenerator

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