Towards precise predictions for Higgs-boson production in the MSSM

A bstract 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 scena...

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Bibliographic Details
Published in:The journal of high energy physics 2014-06, Vol.2014 (6), p.1-65, Article 167
Main Authors: Bagnaschi, E., Harlander, R.V., Liebler, S., Mantler, H., Slavich, P., Vicini, A.
Format: Article
Language:English
Subjects:
Benchmarking
Classical and Quantum Gravitation
Cross sections
Elementary Particles
Factorization
Gluons
Higgs bosons
High energy physics
High Energy Physics - Phenomenology
Mathematical analysis
Physics
Physics and Astronomy
Quantum Field Theories
Quantum Field Theory
Quantum Physics
Relativity Theory
Scalars
String Theory
Uncertainty
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Summary:A bstract 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.
ISSN:1029-8479
1126-6708
1029-8479
DOI:10.1007/JHEP06(2014)167