Sneutrino warm inflation in the minimal supersymmetric model

Details Sneutrino warm inflation in the minimal supersymmetric model Sneutrino warm inflation in the minimal supersymmetric model

2005-07-11

arxiv.org/abs/hep-ph/0507124v1

Phys.Rev.D72:103526,2005

Physics

High Energy Physics

High Energy Physics - Phenomenology

10 pages, 1 eps figure, revtex4

Scientific paper

10.1103/PhysRevD.72.103526

The model of RH neutrino fields coupled to the MSSM is shown to yield a large parameter regime of warm inflation. In the strong dissipative regime, it is shown that inflation, driven by a single sneutrino field, occurs with {\it all field amplitudes below the Planck scale}. Analysis is also made of leptogenesis, neutrino mass generation and gravitino constraints. A new warm inflation scenario is purposed in which one scalar field drives a period of warm inflation and a second field drives a subsequent phase of reheating. Such a model is able to reduce the final temperature after inflation, thus helping to mitigate gravitino constraints.

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