We study the impact of the two-loop electroweak corrections on the production of a Higgs boson via gluon-fusion in proton-proton collisions at LHC energies. We discuss the prescritpion to include the corrections to the hard scattering matrix element in the calculation of the hadronic cross-section σ(p + p → H + X). Under the hypothesis of factorization of the electroweak corrections with respect to the dominant soft and collinear QCD radiation, we observe an increase of the total cross-section from 4 to 8%, for mh ≤ 160 GeV. This increase is comparable with the present QCD uncertainties originating from hard scattering matrix elements.
Two-loop electroweak corrections to Higgs production / U. Aglietti, R. Bonciani, G. Degrassi, A. Vicini - In: Tevatron-for-LHC Report: Higgs / U. Aglietti, A. Belyaev, S. Berge, A. Blum, R. Bonciani, J. Cammin, M. Carena, S. Chivukula, H. Davoudiasl, S. Dawson, G. Degrassi, A. Dominguez, J. Donini, T. Dorigo, B.J. Field, T. Hahn, T. Han, S. Heinemeyer, G.-Y. Huang, I. Iashvilli, C.B. Jackson, T. Junk, S.-W. Lee, H.E. Logan, F. Maltoni, B. Mellado, S. Mrenna, P.M. Nadolsky, F.I. Olness, W. Quayle, L. Reina, E.H. Simmons, A. Vicini, D. Wackeroth, C.E.M. Wagner, G. Weiglein, G. Weiglein, S. Willenbrock, S.L. Wu, C.P. Yuan ; [a cura di] A. Dominguez, I. Iashvilli, S. Willenbrock. - Batavia (IL) : Fermilab, 2006 Dec 13. - pp. 60-65
Two-loop electroweak corrections to Higgs production
A. ViciniUltimo
2006
Abstract
We study the impact of the two-loop electroweak corrections on the production of a Higgs boson via gluon-fusion in proton-proton collisions at LHC energies. We discuss the prescritpion to include the corrections to the hard scattering matrix element in the calculation of the hadronic cross-section σ(p + p → H + X). Under the hypothesis of factorization of the electroweak corrections with respect to the dominant soft and collinear QCD radiation, we observe an increase of the total cross-section from 4 to 8%, for mh ≤ 160 GeV. This increase is comparable with the present QCD uncertainties originating from hard scattering matrix elements.
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