Artículo
Approximate N3LO Higgs-boson production cross section using physical-kernel constraints
Fecha de publicación:
10/2014
Editorial:
Springer
Revista:
Journal Of High Energy Physics
ISSN:
1029-8479
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
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 = mH2 /s? → 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 μR = mH and 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.
Palabras clave:
Higgs
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Articulos(IFIBA)
Articulos de INST.DE FISICA DE BUENOS AIRES
Articulos de INST.DE FISICA DE BUENOS AIRES
Citación
de Florian, Daniel Enrique; Mazzitelli, Javier Sebastián; Moch, S.; Vogt, A.; Approximate N3LO Higgs-boson production cross section using physical-kernel constraints; Springer; Journal Of High Energy Physics; 2014; 176; 10-2014; 1-28
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