GUT Scale Inflation, Non-Thermal Leptogenesis, and Atmospheric Neutrino Oscillations

Abstract

Leptogenesis scenarios in supersymmetric hybrid inflation models are considered. Sufficient lepton asymmetry leading to successful baryogenesis can be obtained if the reheat temperature T_r>10^6 GeV and the superpotential coupling parameter kappa is in the range 10^-6<kappa<10^-2. For this range of kappa the scalar spectral index n_s=0.99+-0.01. Constraints from neutrino mixing further restrict the range of kappa that is allowed. We analyze in detail the case where the inflaton predominantly decays into the next-to-lightest right handed Majorana neutrino taking into account especially the constraints from atmospheric neutrino oscillations.

1+18 pages, 8 figures. v.2: Abridged and revised, comments and references added, now 1+16 pages, 7 figures, to appear in PLB

References in corpus (5)

• Indications of Neutrino Oscillation in a 250 km Long-baseline Experiment
• Probing the seesaw mechanism with neutrino data and leptogenesis
• Status of atmospheric neutrino(mu)<-->neutrino(tau) oscillations and decoherence after the first K2K spectral data
• Testing Supersymmetric Grand Unified Models of Inflation
• Radiative corrections to neutrino mass matrix in the Standard Model and beyond

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