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arXiv · 0709.4227

Scalar Particle Contribution to Higgs Production via Gluon Fusion at NLO

R. Bonciani·G. Degrassi·A. Vicini
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Abstract

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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R. Bonciani, G. Degrassi, A. Vicini. 2007-10-04. Scalar Particle Contribution to Higgs Production via Gluon Fusion at NLO. https://doi.org/10.1088/1126-6708%2F2007%2F11%2F095

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