Approximate N3LO Higgs-boson production cross section using physical-kernel constraints

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The single-logarithmic enhancement of the physical kernel for Higgs production by gluon-gluon fusion in the heavy top-quark limit is employed to derive the leading so far unknown contributions, ln5, 4, 3(1−z), to the N3LO coefficient function in the threshold expansion. Also using knowledge from Hig...

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Autor principal: de Florian, Daniel Enrique
Publicado: 2014
Materias:
Higgs Physics
QCD
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_11266708_v2011_n10_p_DeFlorian
http://hdl.handle.net/20.500.12110/paper_11266708_v2011_n10_p_DeFlorian
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_11266708_v2011_n10_p_DeFlorian
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spelling paper:paper_11266708_v2011_n10_p_DeFlorian2023-06-08T16:08:12Z Approximate N3LO Higgs-boson production cross section using physical-kernel constraints de Florian, Daniel Enrique Higgs Physics QCD The single-logarithmic enhancement of the physical kernel for Higgs production by gluon-gluon fusion in the heavy top-quark limit is employed to derive the leading so far unknown contributions, ln5, 4, 3(1−z), to the N3LO coefficient function in the threshold expansion. Also using knowledge from Higgs-exchange DIS to estimate the remaining terms not vanishing for z = m2 H/ŝ → 1, these results are combined with the recently completed soft+virtual contributions to provide an uncertainty band for the complete N3LO correction. For the 2008 MSTW parton distributions these N3LO contributions increase the cross section at 14TeV by (10 ± 2)% and (3 ± 2.5)% for the standard choices μR= mHand μR= mH/2 of the renormalization scale. The remaining uncertainty arising from the hard-scattering cross sections can be quantified as no more than 5%, which is smaller than that due to the strong coupling and the parton distributions. © The Authors. Fil:De Florian, D. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2014 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_11266708_v2011_n10_p_DeFlorian http://hdl.handle.net/20.500.12110/paper_11266708_v2011_n10_p_DeFlorian
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Higgs Physics
QCD
spellingShingle Higgs Physics
QCD
de Florian, Daniel Enrique
Approximate N3LO Higgs-boson production cross section using physical-kernel constraints
topic_facet Higgs Physics
QCD
description The single-logarithmic enhancement of the physical kernel for Higgs production by gluon-gluon fusion in the heavy top-quark limit is employed to derive the leading so far unknown contributions, ln5, 4, 3(1−z), to the N3LO coefficient function in the threshold expansion. Also using knowledge from Higgs-exchange DIS to estimate the remaining terms not vanishing for z = m2 H/ŝ → 1, these results are combined with the recently completed soft+virtual contributions to provide an uncertainty band for the complete N3LO correction. For the 2008 MSTW parton distributions these N3LO contributions increase the cross section at 14TeV by (10 ± 2)% and (3 ± 2.5)% for the standard choices μR= mHand μR= mH/2 of the renormalization scale. The remaining uncertainty arising from the hard-scattering cross sections can be quantified as no more than 5%, which is smaller than that due to the strong coupling and the parton distributions. © The Authors.
author de Florian, Daniel Enrique
author_facet de Florian, Daniel Enrique
author_sort de Florian, Daniel Enrique
title Approximate N3LO Higgs-boson production cross section using physical-kernel constraints
title_short Approximate N3LO Higgs-boson production cross section using physical-kernel constraints
title_full Approximate N3LO Higgs-boson production cross section using physical-kernel constraints
title_fullStr Approximate N3LO Higgs-boson production cross section using physical-kernel constraints
title_full_unstemmed Approximate N3LO Higgs-boson production cross section using physical-kernel constraints
title_sort approximate n3lo higgs-boson production cross section using physical-kernel constraints
publishDate 2014
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_11266708_v2011_n10_p_DeFlorian
http://hdl.handle.net/20.500.12110/paper_11266708_v2011_n10_p_DeFlorian
work_keys_str_mv AT defloriandanielenrique approximaten3lohiggsbosonproductioncrosssectionusingphysicalkernelconstraints
_version_ 1768546129709891584

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