Supersymmetric And Smooth Hybrid Inflation In The Light Of WMAP3

Rehman, Mansoor ur; Senoguz, V. N.; Shafi, Qaisar

Supersymmetric And Smooth Hybrid Inflation In The Light Of WMAP3

Authors

Rehman, Mansoor ur

Senoguz, V. N.

Shafi, Qaisar

Description

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