Towards precise predictions for Higgs-boson production in the MSSM

Bagnaschi, E.; Mantler, H.; Harlander, R. V.; Vicini, A.; Liebler, S.; Slavich, P.

doi:10.1007/JHEP06(2014)167

Report/Journal Article

DESY-2014-03226

Towards precise predictions for Higgs-boson production in the MSSM

Bagnaschi, E. ; Harlander, R. V. ; Liebler, S.Extern* ; Mantler, H. ; Slavich, P. ; Vicini, A.

2014
Springer Berlin

Journal of high energy physics 2014(6), 167 (2014) [10.1007/JHEP06(2014)167]

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Please use a persistent id in citations: doi:10.1007/JHEP06(2014)167

Report No.: DESY-14-040

Abstract: We study the production of scalar and pseudoscalar Higgs bosons via gluon fusion and bottom-quark annihilation in the MSSM. Relying on the NNLO-QCD calculation implemented in the public code SusHi, we provide precise predictions for the Higgs-production cross section in six benchmark scenarios compatible with the LHC searches. We also provide a detailed discussion of the sources of theoretical uncertainty in our calculation. We examine the dependence of the cross section on the renormalization and factorization scales, on the precise definition of the Higgs-bottom coupling and on the choice of PDFs, as well as the uncertainties associated to our incomplete knowledge of the SUSY contributions through NNLO. In particular, a potentially large uncertainty originates from uncomputed higher-order QCD corrections to the bottom-quark contributions to gluon fusion.

Keyword(s): Higgs Physics (LCSH) ; Supersymmetric Standard Model (LCSH) ; Higgs particle: production ; Higgs particle: pseudoscalar particle ; gluon: fusion ; bottom: annihilation ; parton: distribution function ; quantum chromodynamics: correction ; minimal supersymmetric standard model ; CERN LHC Coll