Higgs production in gluon fusion beyond NNLO
By R. Ball, M. Bonvini, S. Forte, S. Marzani, G. Ridolfi. 2013
148 citations recorded by the source corpus.
We construct an approximate expression for the cross section for Higgs production in gluon fusion at next-to-next-to-next-to-leading order (N3LO) in αs with finite top mass. We argue that an accurate approximation can be constructed by exploiting the analyticity of the Mellin space cross section, and the information on its singularity structure coming from large N (soft gluon, Sudakov) and small N (high energy, BFKL) all order resummation. We support our argument with an explicit comparison of the approximate and the exact expressions up to the highest (NNLO) order at which the latter are available. We find that the approximate N3LO result amounts to a correction of 17% to the NNLO QCD cross section for production of a 125 GeV Higgs at the LHC (8 TeV), larger than previously estimated, and it significantly reduces the scale dependence of the NNLO result.
Subfields: Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/328b6868dca5ecbf95fd1a80ba7a9ce643d782f4
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In Nuclear and High Energy Physics
- Atlas Collaboration
- Cms Collaboration
- Gudrun Heinrich
- Stefan Dittmaier
- Ansgar Denner
- M. Schönherr
- P. Nason
- Stefan Kallweit
Citations in the corpus
- Les Houches 2013: Physics at TeV Colliders: Standard Model Working Group Report (2014, background): “In some sense, part of the frontier is now NNNLO, where some approximate gg → Higgs calculations have been performed [21,22], and a full calculation might be possible within the next few years [23–25].”
- High precision determination of the gluon fusion Higgs boson cross-section at the LHC (2016, methodology): “[50] R.”
- The Structure of the Proton in the LHC Precision Era (2017, methodology): “The theoretical settings for each cross section calculation are based on state–of–the–art matrix element calculations, for instance the gluon–fusion and VBF results are computed at N3LO using the ggHiggs [546] and vbf@n3lo [547] codes respectively.”
- Collider physics at the precision frontier (2020, methodology): “The NNLOHTL corrections have been implemented in the programs HiGlu [58], iHixs [59, 60], SusHi [61] and ggHiggs [62, 63].”
- Soft gluon resummation for gluon-induced Higgs Strahlung (2014, background): “The most prominent example is the inclusive Higgs production via gluon fusion, gg → H [21–32].”
- Beyond the Standard Model Physics at the HL-LHC and HE-LHC (2018, background): “5 [563–566] at NLO including NLL resummation without a pT -cut.”
- Higgs boson gluon–fusion production at threshold in N3LO QCD (2014, background): “ient to predict the value of the Higgs-boson cross-section at N3LO in QCD. Recently, various approximate N3LO cross-section estimates were put forward which rely crucially on the threshold assumption [6, 7, 8]. Given these considerations, it is important to quantify the reliability of the threshold ”