Finite top mass effects for hadronic Higgs production at next-to-next-to-leading order

By Robert V. Harlander, K. Ozeren. 2009

270 citations recorded by the source corpus.

The first four terms of an expansion in MH2/Mt2 of the total inclusive cross section for Higgs production in gluon fusion are evaluated through next-to-next-to-leading order QCD. A reliable and precise approximation of the full top mass dependence at NNLO is derived and compared to the frequently used heavy-top limit. It is found that both results agree numerically to better than 0.5% in the Higgs mass range of 100–300 GeV. This validates the higher order results for the inclusive Higgs cross section and justifies the heavy-top limit as a powerful tool for Higgs phenomenology at the LHC and the Tevatron.

Subfields: Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/d29ff0da8d356a457a6019703157e51560b7e9b8

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In Nuclear and High Energy Physics

Citations in the corpus

Fully differential NNLO computations with MATRIX (2017, background): “cluster_submit_line[1-99] Lines in cluster submit file to add cluster-specific options.”
Inadequacy of zero-width approximation for a light Higgs boson signal (2012, unknown): “[28–33].”
Top-quark mass effects in double and triple Higgs production in gluon-gluon fusion at NLO (2014, background): “The approximation has been proven to work extremely well for single Higgs production [56].”
High precision determination of the gluon fusion Higgs boson cross-section at the LHC (2016, methodology): “[22, 23, 48, 49] top-mass corrections at NNLO were computed as an expansion in mH/mt, after factorizing the exact LO cross-section.”
Automated event generation for loop-induced processes (2015, methodology): “At this level of precision it is important to consider the corrections to the EFT approach, by including effects due to the finite top quark mass [71–73] as well as the interference between top and bottom quark loops [74, 75].”
Higgs production in gluon fusion at next-to-next-to-leading order QCD for finite top mass (2009, background): “We decide to use [13] σ̂ (n) αβ (x) = σ̂ (n) αβ,N (x) + σ0A (n) αβ [”
Finite top quark mass effects in NNLO Higgs boson production at LHC (2009, result): “Expanding our analytic results for the partonic cross section around the soft limit we find agreement with a very recent publication by Harlander and Ozeren [1].”