Leptogenesis without violation of B-L

by Nuria Rius (IFIC, U. Valencia)

Wednesday 11 Aug 2010, 11:00 → 12:00 Europe/Zurich

4/2-011 - TH common room (CERN)

We consider leptogenesis in the decay of heavy Standard Modelsinglet fermions which carry lepton number, in a framework without Majorana masses above the electroweak scale. Such scenario does not contain any source of total lepton number violation besides the Standard Model sphalerons, and the baryon asymmetry is generated by the interplay of lepton flavour effects and the sphaleron decoupling in the decay epoch. e-Print: arXiv:0909.3518