Higgs production via gluon fusion in the POWHEG approach in the SM and in the MSSM

• DOI: 10.1007/jhep02(2012)088
• Publication Date: 2012-02-23T23:48:05Z
• Authors: E. Bagnaschi; G. Degrassi; P. Slavich; A. Vicini
• Keywords: [PHYS.HPHE] Physics [physics]/High Energy Physics - Phenomenology [hep-ph]; Nuclear and High Energy Physics; High Energy Physics - Phenomenology; High Energy Physics - Phenomenology (hep-ph); [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph]; Higgs physics; NLO computations; Standard model; Supersymmetric Standard Model; 0103 physical sciences; FOS: Physical sciences; 01 natural sciences; 7. Clean energy

Abstract

We consider the gluon fusion production cross section of a scalar Higgs boson at NLO QCD in the SM and in the MSSM. We implement the calculation in the POWHEG approach, and match the NLO-QCD results with the PYTHIA and HERWIG QCD parton showers. We discuss a few representative scenarios in the SM and MSSM parameter spaces, with emphasis on the fermion and squark mass effects on the Higgs boson distributions.