Supersymmetric Higgs production in gluon fusion at next-to-leading order | Zendy

Robert Harlander | Zendy; Matthias Steinhauser | Zendy

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Supersymmetric Higgs production in gluon fusion at next-to-leading order

Author(s) -

Robert Harlander,

Matthias Steinhauser

Publication year - 2004

Publication title -

journal of high energy physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.998

H-Index - 261

eISSN - 1126-6708

pISSN - 1029-8479

DOI - 10.1088/1126-6708/2004/09/066

Subject(s) - higgs boson , particle physics , minimal supersymmetric standard model , physics , parameter space , standard model (mathematical formulation) , quantum chromodynamics , gluon , supersymmetry , mathematics , statistics , archaeology , gauge (firearms) , history

The next-to-leading order (NLO) QCD corrections to the production and decayrate of a Higgs boson are computed within the framework of the MinimalSupersymmetric Standard Model (MSSM). The calculation is based on an effectivetheory for light and intermediate mass Higgs bosons. We provide a Fortranroutine for the numerical evaluation of the coefficient function. For most ofthe MSSM parameter space, the relative size of the NLO corrections is typicallyof the order of 5% smaller than the Standard Model value. We exemplify thenumerical results for two scenarios: the benchmark point SPS1a, and a parameterregion where the gluon-Higgs coupling at leading order is very small due to acancellation of the squark and quark contributions.Comment: 27 pages, LaTeX, 31 embedded PostScript-files; v2: typos corrected, reformatted in JHEP style; accepted for publication in JHE

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