Super Hilltop Inflation

Abstract

In this paper, we consider logarithmic radiative corrections and higher order terms to the supersymmetric hilltop F- and D-term hybrid inflation models. Conventional F- and D-term hybrid inflation only predicts $n_s\text{gae}0.98$. We show that via a positive quadratic and a negative quartic correction the spectral index can be reduced to $n_s=0.96$ suggested from latest WMAP result and also cosmic string problem appeared in SUSY hybrid inflation can be solved with mild tuning of the parameters if $\kappa \text{lae}0.01$ for F-term inflation and $g\text{lae}0.05$ for D-term inflation.

Comments: 12 pages, 8 figures, to be published in JCAP