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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Autores principales: De Florian, D., Mazzitelli, J., Moch, S., Vogt, A.
Formato: JOUR
Materias:
Higgs Physics
QCD
Acceso en línea: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
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spelling todo:paper_11266708_v2011_n10_p_DeFlorian2023-10-03T16:06:47Z Approximate N3LO Higgs-boson production cross section using physical-kernel constraints De Florian, D. Mazzitelli, J. Moch, S. Vogt, A. 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. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar 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, D.
Mazzitelli, J.
Moch, S.
Vogt, A.
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.
format JOUR
author De Florian, D.
Mazzitelli, J.
Moch, S.
Vogt, A.
author_facet De Florian, D.
Mazzitelli, J.
Moch, S.
Vogt, A.
author_sort De Florian, D.
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
url http://hdl.handle.net/20.500.12110/paper_11266708_v2011_n10_p_DeFlorian
work_keys_str_mv AT defloriand approximaten3lohiggsbosonproductioncrosssectionusingphysicalkernelconstraints
AT mazzitellij approximaten3lohiggsbosonproductioncrosssectionusingphysicalkernelconstraints
AT mochs approximaten3lohiggsbosonproductioncrosssectionusingphysicalkernelconstraints
AT vogta approximaten3lohiggsbosonproductioncrosssectionusingphysicalkernelconstraints
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