Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2001-01-15
Phys.Lett. B506 (2001) 1-6
Physics
High Energy Physics
High Energy Physics - Phenomenology
RevTex, 14 pages with 4 figures
Scientific paper
10.1016/S0370-2693(01)00403-8
In the baryogenesis via leptogenesis framework the baryonic asymmetry depends on lepton mass matrices. In a previous paper we used SO(10)-inspired mass matrices and we found few possibilities to obtain a sufficient level of asymmetry. In the present paper we use SU(5)-inspired mass matrices, which also allow to check the dependence of the baryonic asymmetry on Dirac neutrino masses. In particular, we find that the large mixing matter solution to the solar neutrino problem, which within SO(10) gives too small asymmetry, can now be favoured.
Falcone Domenico
Tramontano Francesco
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