Unitarity-Safe Models of Non-Minimal Inflation in Supergravity
High Energy Physics - Phenomenology
2018-12-27 v3 Cosmology and Nongalactic Astrophysics
High Energy Physics - Theory
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.
Cite
@article{arxiv.1807.01154,
title = {Unitarity-Safe Models of Non-Minimal Inflation in Supergravity},
author = {C. Pallis},
journal= {arXiv preprint arXiv:1807.01154},
year = {2018}
}
Comments
Published version; arXiv admin note: text overlap with arXiv:1803.00349