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arXiv · 1807.01154

Unitarity-Safe Models of Non-Minimal Inflation in Supergravity

C. Pallis
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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.

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C. Pallis. 2018-12-25. Unitarity-Safe Models of Non-Minimal Inflation in Supergravity. https://doi.org/10.1140/epjc%2Fs10052-018-6485-6

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