Speaker
Oscar M. Vives Garcia
(U. Valencia)
Description
We prove that taking correctly into account the lepton flavour dependence
of the $CP$ asymmetries and washout processes, it is possible to obtain
successful thermal leptogenesis from the decays of the second right-handed
neutrino. The asymmetries in the muon and tau-flavour channels are then not
erased by the inverse decays of the lightest right-handed neutrino, $N_1$.
In this way, we reopen the possibility of ``thermal leptogenesis'' in models
with a strong hierarchy in the right-handed Majorana masses that is typically
the case in models with up-quark--neutrino Yukawa unification.
Author
Oscar M. Vives Garcia
(U. Valencia)
