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Baryogenesis via leptogenesis in SO(10) models

arXiv:hep-ph/0108172 · doi:10.1016/S0370-2693(01)01409-5

Abstract

We discuss the baryogenesis via leptogenesis mechanism within the supersymmetric and nonsupersymmetric SO(10) models. We find that the nonsupersymmetric model, endowed with an intermediate scale, is generally favoured, unless some fine tuning occurs in the supersymmetric case.

9 pages, RevTex, with 1 figure