Higgs phenomenology of the minimal non-minimal supersymmetric standard model

by Apostolos PILAFTSIS (University of Würzburg)

Friday 29 Sept 2000, 14:00 → 14:15 Europe/Zurich

TH Auditorium (CERN)

We consider the simplest and most economic version among the proposed non-minimal supersymmetric models, in which the m-parameter is promoted to a singlet superfield, whose all self-couplings are absent from the renormalizable superpotential. We explicitly demonstrate how the suggested model provides a natural explanation for the origin of the m-term, without suffering from the visible axion or the cosmological domain-wall problem. We discuss the phenomenological implications of this minimal non-minimal supersymmetric standard model for the direct Higgs-boson searches at the LEP2 and the upgraded Tevatron colliders. In particular, we illustrate how as opposed to the MSSM and the NMSSM, a possible discovery of a relatively light charged Higgs boson, with mass even close to the present experimental lower bound, can naturally be accounted for within the supersymmetric model under discussion.