Atmospheric Neutrino Anomaly and Supersymmetric Inflation

Abstract

A detailed investigation of hybrid inflation and the subsequent reheating process is performed within a mu problem solving supersymmetric model based on a left-right symmetric gauge group. The process of baryogenesis via leptogenesis is especially studied. For mu and tau neutrino masses consistent with the small angle MSW resolution of the solar neutrino problem and the recent results of the SuperKamiokande experiment, we show that maximal mu-tau neutrino mixing can be achieved. The required value of the relevant coupling constant is, however, quite small (of the order 10^{-6}).

10 pages, 3 figures

References in corpus (4)

• Initial Results from the CHOOZ Long Baseline Reactor Neutrino Oscillation Experiment
• Preheating in Hybrid Inflation
• Mu Problem and Hybrid Inflation in Supersymmetric SU(2)_L x SU(2)_R x U(1)_B-L
• Supersymmetric Inflation, Baryogenesis and ν_μ - ν_τ Oscillations

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• Hierarchical Neutrinos and Supersymmetric Inflation
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• Lopsided Mass Matrices and Leptogenesis in SO(10) GUT
• $\mu$-hybrid Inflation, Gravitino Dark Matter and Stochastic Gravitational Wave Background from Cosmic Strings
• Upper Bound on the Tensor-to-Scalar Ratio in GUT-Scale Supersymmetric Hybrid Inflation
• Shifted $\mu$-hybrid inflation, gravitino dark matter, and observable gravity waves
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• Degenerate Neutrinos and Supersymmetric Inflation
• Non-thermal leptogenesis via direct inflaton decay without SU(2)(L) triplets
• Smooth Hybrid Inflation and Non-Thermal Type II Leptogenesis
• $\mu$-Hybrid Inflation and Metastable Cosmic Strings in $\mathbf{SU}(3{)}_{\mathbf{c}}\times \mathbf{SU}(2{)}_{\mathbf{L}}\times \mathbf{SU}(2{)}_{\mathbf{R}}\times \mathbf{U}(1{)}_{\mathbf{B}-\mathbf{L}}$
• Observable r, Gravitino Dark Matter, and Non-thermal Leptogenesis in No-Scale Supergravity
• Supersymmetric hybrid inflation and current-carrying metastable cosmic strings in $SU(4{)}_c\times SU(2{)}_L\times U(1{)}_R$
• Smooth $\mu$-Hybrid and Non-Minimal Higgs Inflation in $SU(4{)}_C\times SU(2{)}_L\times SU(2{)}_R$ With Observable Gravitational Waves
• Inflation, Proton Decay and Gravitational Waves from Metastable Strings in $SU(4{)}_C\times SU(2{)}_L\times U(1{)}_R$ Model
• Inflation and Unification