Higgs Masses and $CP$ Violation in SUSY Models

Details Higgs Masses and $CP$ Violation in SUSY Models Higgs Masses and $CP$ Violation in SUSY Models

1996-02-03

arxiv.org/abs/hep-ph/9602219v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

25 pages, Latex, 6 figures

Scientific paper

Though the mass of Higgs particle is the parameter determined by the experiment in the standard model (SM), SUSY models have rather predictive power for the lightest Higgs mass, and its upper bound in some SUSY models are close to the observable region in LEP2. The upper bound of the lightest Higgs mass is analysed systematically on the basis of the $CP$ violation in the minimal and the next minimal supersymmetric standard model (MSSM and NMSSM). In the explicit $CP$ violation case, the mass bound is large around $130 \sim 160$ GeV in both models. In the spontaneous $CP$ violation case induced by the radiative effects, the lightest Higgs mass upper bound is about $52$ GeV and sum of two light neutral Higgs should be around $O$(100 GeV) in the NMSSM in contrast to the one in the MSSM which implies about 6 GeV. This model gives the interesting predictions for the neutron electric dipole moment.

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