Two-Stage Inflation in Supergravity
نویسنده
چکیده
We investigate the viability of a two-stage inflationary scenario in the context of supergravity, so as to resolve the problem of initial conditions for hybrid inflation. We allow for non-renormalizable terms in the superpotential and consider the most general form of the Kähler potential and the gauge kinetic function. We construct a model with two stages of inflation, the first driven by D-term and the second by F -term energy density. The viability of this scenario depends on the non-minimal terms in the Kähler potential, for which we derive the necessary constraints. PACS number: 98.80.Cq
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