The upper bound on the lightest Higgs mass in the NMSSM revisited

Details The upper bound on the lightest Higgs mass in the NMSSM revisited The upper bound on the lightest Higgs mass in the NMSSM revisited

2006-12-11

arxiv.org/abs/hep-ph/0612133v4

Mod.Phys.Lett.A22:1581-1590,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

13 pages, 2 figures, improved figures with a numerical bug corrected, additional discussions of the large tan(beta) regime and

Scientific paper

10.1142/S0217732307023870

We update the upper bound on the lightest CP even Higgs mass in the NMSSM, which is given as a function of tan(beta) and lambda. We include the available one and two loop corrections to the NMSSM Higgs masses, and constraints from the absence of Landau singularities below the GUT scale as well as from the stability of the NMSSM Higgs potential. For m_top varying between 171.4 and 178 GeV, squark masses of 1 TeV and maximal mixing the upper bound is assumed near tan(beta) ~ 2 and varies between 139.9 and 141.4 GeV.

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