Gravitino constraints on models of neutrino masses and leptogenesis

Details Gravitino constraints on models of neutrino masses and leptogenesis Gravitino constraints on models of neutrino masses and leptogenesis

1998-11-26

arxiv.org/abs/hep-ph/9811479v1

Phys.Rev. D60 (1999) 055005

Physics

High Energy Physics

High Energy Physics - Phenomenology

12 pages latex file with one postscript figure

Scientific paper

10.1103/PhysRevD.60.055005

In the supersymmetric extensions of the standard model, neutrino masses and leptogenesis requires existence of new particles. We point out that if these particles with lepton number violating interactions have standard model gauge interactions, then they may not be created after reheating because of the gravitino problem. This will rule out all existing models of neutrino masses and leptogenesis, except the one with right-handed singlet neutrinos.

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