Supersymmetric And Smooth Hybrid Inflation In The Light Of WMAP3

Details Supersymmetric And Smooth Hybrid Inflation In The Light Of WMAP3 Supersymmetric And Smooth Hybrid Inflation In The Light Of WMAP3

2006-12-04

arxiv.org/abs/hep-ph/0612023v2

Phys.Rev.D75:043522,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

21 pages, 12 figures, revtex4. v2: minor revisions, additional references, to appear in PRD

Scientific paper

10.1103/PhysRevD.75.043522

In their minimal form both supersymmetric and smooth hybrid inflation yield a scalar spectral index n_s close to 0.98, to be contrasted with the result n_s=0.951+0.015-0.019 from WMAP3. To realize better agreement, following hep-ph/0604198, we extend the parameter space of these models by employing a non-minimal Kaehler potential. We also discuss non-thermal leptogenesis by inflaton decay and obtain new bounds in these models on the reheat temperature to explain the observed baryon asymmetry.

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