Regular Article - Theoretical Physics
Unitarity-safe models of non-minimal inflation in supergravity
School of Technology, Aristotle University of Thessaloniki, 541 12, Thessaloniki, Greece
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Accepted: 28 November 2018
Published online: 14 December 2018
We show that models of chaotic inflation based on the potential and a linear non-minimal coupling to gravity, , can be done consistent with data in the context of Supergravity, retaining the perturbative unitarity up to the Planck scale, if we employ logarithmic Kähler potentials with prefactors or , where for or for . Focusing, moreover, on a model employing a gauge non-singlet inflaton, we show that a solution to the problem of MSSM and baryogenesis via non-thermal leptogenesis can be also accommodated.
© The Author(s), 2018