Approximate N3LO Higgs-boson production cross section using physical-kernel constraints
Abstract: 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, ln 5, 4, 3(1−z), to the N3LO coefficient function in the threshold expansion. Also using knowled...
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todo:paper_11266708_v2014_n10_p1_deFlorian2023-10-03T16:07:03Z Approximate N3LO Higgs-boson production cross section using physical-kernel constraints de Florian, D. Mazzitelli, J. Moch, S. Vogt, A. Higgs Physics QCD Abstract: 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, ln 5, 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 = m<inf>H</inf>2/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 14 TeV by (10 ±2)% and (3 ±2.5)% for the standard choices μ<inf>R</inf> = m<inf>H</inf> and μ<inf>R</inf> = m<inf>H</inf>/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. © 2014, The Author(s). 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_v2014_n10_p1_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 |
Abstract: 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, ln 5, 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 = m<inf>H</inf>2/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 14 TeV by (10 ±2)% and (3 ±2.5)% for the standard choices μ<inf>R</inf> = m<inf>H</inf> and μ<inf>R</inf> = m<inf>H</inf>/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. © 2014, The Author(s). |
| 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_v2014_n10_p1_deFlorian |
| work_keys_str_mv |
AT defloriand approximaten3lohiggsbosonproductioncrosssectionusingphysicalkernelconstraints AT mazzitellij approximaten3lohiggsbosonproductioncrosssectionusingphysicalkernelconstraints AT mochs approximaten3lohiggsbosonproductioncrosssectionusingphysicalkernelconstraints AT vogta approximaten3lohiggsbosonproductioncrosssectionusingphysicalkernelconstraints |
| _version_ |
1807316647583678464 |