Leptogenesis in Inflaton Decay

Abstract

We study a leptogenesis via decays of heavy Majorana neutrinos produced non-thermally in inflaton decays. We find that this scenario is fully consistent with existing supersymmetric inflation models such as for topological or for hybrid inflation and the Froggatt-Nielsen mechanism generating hierarchies in quark and lepton mass matrices. The reheating temperature $T_R$ of inflation may be taken as low as $T_R\simeq 10^8$ GeV to avoid the cosmological gravitino problem.

13 pages

Cited by in corpus (180)

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