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

By K. Hamilton, P. Nason, G. Zanderighi. 2015

205 citations recorded by the source corpus.

A bstractWe 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.

Subfields: Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/535386dbfc14d4dac9a72733ed22c37ebe5b0305

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In Nuclear and High Energy Physics

Citations in the corpus

Combined measurements of Higgs boson production and decay using up to $80$ fb$^{-1}$ of proton-proton collision data at $\sqrt{s}=$ 13 TeV collected with the ATLAS experiment (2019, methodology): “Higgs boson production via gluon–gluon fusion was simulated using the POWHEG BOX [44–47] NNLOPS implementation [48,49].”
Jet substructure at the Large Hadron Collider: A review of recent advances in theory and machine learning (2017, background): “There has also been significant recent progress in matching specific processes at NNLO [166, 182, 183, 184, 185, 186].”
Evidence for Higgs boson decay to a pair of muons (2020, methodology): “The pT distribution of the Higgs boson produced via gluon fusion is then reweighted to match the powheg nnlops predictions [43, 44].”
Les Houches 2017: Physics at TeV Colliders Standard Model Working Group Report (2017, methodology): “The NNLO+PS computations [217, 234] have been extended to include finite top and bottom mass corrections at NLO [235].”
Collider physics at the precision frontier (2020, methodology): “Top quark mass effects have been included at NLO in various approximations [146, 103, 147, 148] before the NLO calculation with full top quark mass dependence was presented [149], providing more precise predictions at large pT , a region which is sensitive to New Physics effects due to additional he”
Les Houches 2015: Physics at TeV Colliders Standard Model Working Group Report (2016, methodology): “The NNLO+PS computation [137] has been extended to include finite top and bottom mass corrections at NLO [138].”