Hierarchical Neutrinos and Supersymmetric Inflation

Preprint

22 May 1999

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.hep-ph/9903511

Abstract

A moderate extension of MSSM based on a left-right symmetric gauge group, within which hybrid inflation is `naturally' realized, is discussed. The mu problem is solved via a Peccei-Quinn symmetry. Light neutrinos acquire hierarchical masses by the seesaw mechanism. They are taken from the small angle MSW resolution of the solar neutrino puzzle and the SuperKamiokande data. The range of parameters consistent with maximal nu_mu-nu_tau mixing and the gravitino constraint is determined. The baryon asymmetry of the universe is generated through a primordial leptogenesis. The subrange of parameters, where the baryogenesis constraint is also met, is specified. The required values of parameters are more or less `natural'.

Keywords

SUPERSYMMETRIC INFLATION
HIERARCHICAL NEUTRINOS
MODERATE EXTENSION
RIGHT SYMMETRIC
MSSM BASED
ASYMMETRY
NEUTRINOS

All Related Versions

Version 1, 1999-03-29, ArXiv
Version 2, 1999-05-22, ArXiv
Version 1, 1999-05-22, ArXiv (Unconfirmed version)
Published version: Physics Letters B, 459 (4), 482.

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