Scalar Particle Contribution to Higgs Production via Gluon Fusion at NLO

Details Scalar Particle Contribution to Higgs Production via Gluon Fusion at NLO Scalar Particle Contribution to Higgs Production via Gluon Fusion at NLO

2007-09-26

arxiv.org/abs/0709.4227v2

JHEP 0711:095,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

20 pages, 5 figures. Minor changes. Refs. added

Scientific paper

10.1088/1126-6708/2007/11/095

We consider the gluon fusion production cross section of a scalar Higgs boson in models where fermion and scalar massive colored particles are present. We report analytic expressions for the matrix elements of $gg\to Hg$, $q\bar{q}\to Hg$, and $qg\to Hq$ processes completing the calculation of the NLO QCD corrections in these extended scenarios. The formulas are written in a complete general case, allowing a flexible use for different theoretical models. Applications of our results to two different models are presented: i) a model in which the SM Higgs sector is augmented by a weak doublet scalar in the $SU(N_c)$ adjoint representation. ii) The MSSM, in the limit of neglecting the gluino contribution to the cross section.

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