Higgs masses and couplings in the NMSSM

Details Higgs masses and couplings in the NMSSM Higgs masses and couplings in the NMSSM

2000-06-19

arxiv.org/abs/hep-ph/0006222v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

7 pages, 3 eps figures; Proceedings of the XXXVth Rencontres de Moriond: Electroweak and Unified Theories, Les Arcs, France, 1

Scientific paper

We give the upper bounds on the masses of the lightest and second lightest CP even Higgs bosons in the NMSSM, the MSSM extended by a gauge singlet. The dominant two loop corrections are included. Since the coupling R of the lightest Higgs scalar to gauge bosons can be small, we study in detail the relation between masses and couplings of both lightest scalars. We present upper bounds on the mass of a 'strongly' coupled Higgs (R>1/2) as a function of lower experimental limits on the mass of a 'weakly' coupled Higgs (R<1/2). With the help of these results, the whole parameter space of the model can be covered.

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