Super Hilltop Inflation

Details Super Hilltop Inflation Super Hilltop Inflation

2008-12-15

arxiv.org/abs/0812.2731v3

JCAP 0903:012,2009

Physics

High Energy Physics

High Energy Physics - Phenomenology

12 pages, 8 figures, to be published in JCAP

Scientific paper

10.1088/1475-7516/2009/03/012

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 $n_s \gae 0.98$. 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 $\kappa \lae 0.01$ for F-term inflation and $g \lae 0.05$ for D-term inflation.

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