Neutrino masses, baryogenesis and dark matter related at low energy?

por Thomas Hambye (IFT-UAM/CSIC)

jueves 8 mar. 2007 12:00 → 13:00 Europe/Madrid

Sala Seminarios IFIC (Edf. Institutos de Investigación)

In the first part of the talk will be reviewed the difficulties one encounters when trying to induce neutrino masses and baryogenesis via leptogenesis at a directly testable scale (~TeV). Two models which avoid these difficulties will be proposed, a minimal one we call "right-handed sector leptogenesis" and another one based on the seesaw extended MSSM. In the second part of the talk, possible connections between low energy induced neutrino masses and dark matter will be briefly discussed, in the context of 1) a inert Higgs model and 2) a low energy effective model where a same process determines both the neutrino masses and the dark matter relic density.