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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, 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.

Registro:

Documento: Artículo
Título:Approximate N3LO Higgs-boson production cross section using physical-kernel constraints
Autor:De Florian, D.; Mazzitelli, J.; Moch, S.; Vogt, A.
Filiación:Departamento de Física, FCEyN, Universidad de Buenos Aires, Pabellón 1, Ciudad Universitaria, Capital Federal, 1428, Argentina
Deutsches Elektronensynchrotron DESY, Platanenallee 6, Zeuthen, D-15738, Germany
II. Institut für Theoretische Physik, Universität Hamburg, Luruper Chaussee 149, Hamburg, D-22761, Germany
Department of Mathematical Sciences, University of Liverpool, Liverpool, L69 3BX, United Kingdom
Palabras clave:Higgs Physics; QCD
Año:2014
Volumen:2011
Número:10
DOI: http://dx.doi.org/10.1007/JHEP10(2014)176
Título revista:Journal of High Energy Physics
Título revista abreviado:J. High Energy Phys.
ISSN:11266708
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_11266708_v2011_n10_p_DeFlorian

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Citas:

---------- APA ----------
De Florian, D., Mazzitelli, J., Moch, S. & Vogt, A. (2014) . Approximate N3LO Higgs-boson production cross section using physical-kernel constraints. Journal of High Energy Physics, 2011(10).
http://dx.doi.org/10.1007/JHEP10(2014)176
---------- CHICAGO ----------
De Florian, D., Mazzitelli, J., Moch, S., Vogt, A. "Approximate N3LO Higgs-boson production cross section using physical-kernel constraints" . Journal of High Energy Physics 2011, no. 10 (2014).
http://dx.doi.org/10.1007/JHEP10(2014)176
---------- MLA ----------
De Florian, D., Mazzitelli, J., Moch, S., Vogt, A. "Approximate N3LO Higgs-boson production cross section using physical-kernel constraints" . Journal of High Energy Physics, vol. 2011, no. 10, 2014.
http://dx.doi.org/10.1007/JHEP10(2014)176
---------- VANCOUVER ----------
De Florian, D., Mazzitelli, J., Moch, S., Vogt, A. Approximate N3LO Higgs-boson production cross section using physical-kernel constraints. J. High Energy Phys. 2014;2011(10).
http://dx.doi.org/10.1007/JHEP10(2014)176