Unitarity-Safe Models of Non-Minimal Inflation in Supergravity

Abstract

We show that models of chaotic inflation based on the phi^p potential and a linear non-minimal coupling to gravity, fR=1+cR phi, can be done consistent with data in the context of Supergravity, retaining the perturbative unitarity up to the Planck scale, if we employ logarithmic Kahler potentials with prefactors -p(1+n) or -p(n+1)-1, where -0.035<= n<=0.007 for p=2 or -0.0145<= n<=0.006 for p=4. Focusing, moreover, on a model employing a gauge non-singlet inflaton, we show that a solution to the mu problem of MSSM and baryogenesis via non-thermal leptogensesis can be also accommodated.

Published version; arXiv admin note: text overlap with arXiv:1803.00349

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Cited by in corpus (8)

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• Gravity-Mediated SUSY Breaking, R Symmetry and Hyperbolic Kaehler Geometry
• An Alternative Framework for E-Model Inflation in Supergravity
• Unitarizing non-Minimal Inflation via a Linear Contribution to the Frame Function
• SU(2,1) / (SU(2) x U(1)) B-L Higgs Inflation
• Smooth $\mu$-Hybrid and Non-Minimal Higgs Inflation in $SU(4{)}_C\times SU(2{)}_L\times SU(2{)}_R$ With Observable Gravitational Waves
• Starobinsky Inflation with T-Model Kaehler Geometries
• Inflation and Supersymmetry Breaking in Higgs-$R^2$ Supergravity