Phenomenology of Non-Minimal SUSY Models

por Cyril Hugonie (IFIC)

jueves 29 may. 2003 12:00 → 13:00 Europe/Madrid

Sala Seminarios IFIC (Edf. Institutos de Investigación)

I will discuss the phenomenology of non-minimal supersymmetric extensions of the Standard Model where a gauge singlet superfield is added in the Higgs sector. First I will give theoretical constraints on the parameter space of the model from the absence of charge and colour breaking minima and cosmologicaly dangerous domain walls. I will also address the possibility of spontaneous CP violation and electroweak baryogenesis. Then I will review experimental constraints from LEP on the (s)particle spectrum and discuss whether at least one Higgs boson will be observed at LHC. I will show in particular that, in some cases, one might have to wait for a LC to give a final answer.