Neutrino masses, SUSY breaking and LFV in the triplet seesaw model

por Filipe Joaquim (Padua U. & INFN)

martes 26 jun. 2007 12:00 → 13:00 Europe/Madrid

Sala Seminarios IFIC (Edf. Institutos de Investigación)

I will discuss a supersymmetric realization of the triplet seesaw mechanism where the exchange of heavy SU(2)_W triplet states generates both neutrino masses and soft supersymmetry breaking terms. This framework turns out to be highly predictive since it contains only three free parameters connecting low-energy neutrino parameters, lepton and quark flavour violation, sparticle and Higgs boson spectra and electroweak symmetry breakdown. We perform a complete analysis of the parameter space taking into account the present experimental constraints and considering different types of neutrino mass spectrum. A special emphasis is given to the particular features of the sparticle and Higgs spectra and to LFV processes like mu-> e X, mu-> e conversion in nuclei, tau-> e Y and tau-> mu Y (X = gamma, e e, Y= gamma, e e, mu mu).