Smooth Hybrid Inflation and Non-Thermal Type II Leptogenesis

Abstract

We consider a smooth hybrid inflation scenario based on a supersymmetric SU(2)_L x SU(2)_R x U(1)_B-L model. The Higgs triplets involved in the model play a key role in inflation as well as in explaining the observed baryon asymmetry of the universe. We show that the baryon asymmetry can originate via non-thermal triplet leptogenesis from the decay of SU(2)_L triplets, whose tiny vacuum expectation values also provide masses for the light neutrinos.

9 pages, 2 figures

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Cited by in corpus (9)

• Upper Bound on the Tensor-to-Scalar Ratio in GUT-Scale Supersymmetric Hybrid Inflation
• From Hybrid to Quadratic Inflation With High-Scale Supersymmetry Breaking
• Inflation, Leptogenesis, and Yukawa Quasi-Unification within a Supersymmetric Left-Right Model
• Implementing Hilltop F-term Hybrid Inflation in Supergravity
• $\mu$-Hybrid Inflation and Metastable Cosmic Strings in $\mathbf{SU}(3{)}_{\mathbf{c}}\times \mathbf{SU}(2{)}_{\mathbf{L}}\times \mathbf{SU}(2{)}_{\mathbf{R}}\times \mathbf{U}(1{)}_{\mathbf{B}-\mathbf{L}}$
• Dark Matter as a remnant of SQCD Inflation
• Probing leptogenesis and the minimal neutrino seesaw mechanism through gravitational waves
• Gravitational Waves from $\text{Type-I}$ Strings in a Neutrino Mass Model
• Non-thermal leptogenesis with distinct CP violation and minimal dark matter