%0 Journal Article
%T Successful type I Leptogenesis with SO(10)-inspired mass relations
%A Di Bari
%A Pasquale
%A Riotto
%A Antonio
%J High Energy Physics - Phenomenology
%D 2008
%I 
%R 10.1016/j.physletb.2008.12.054
%X It is well-known that thermal leptogenesis through the decays of the lightest right-handed neutrinos encounters serious difficulties when SO(10)-inspired mass conditions are imposed on the Dirac neutrino mass matrix and light neutrino masses are generated through the type I see-saw mechanism. We show that these can be circumvented when the production from the next-to-lightest right-handed neutrinos and flavor effects are properly taken into account. Some conditions on the low energy parameters have to be satisfied in order for inverse processes involving the lightest right-handed neutrino not to wash-out the asymmetry. In particular we find m_1 \gtrsim 0.001 eV, where m_1 is the mass of the lightest left-handed neutrino and that non-vanishing values of the mixing angle theta_13 are preferred in the case of a normal fully hierarchical spectrum of light neutrinos.
%U http://arxiv.org/abs/0809.2285