Super hilltop inflation

Journal Article · Sun Mar 15 04:00:00 EDT 2009 · Journal of Cosmology and Astroparticle Physics

DOI:https://doi.org/10.1088/1475-7516/2009/03/012· OSTI ID:22156933

Lin, Chia-Min; Cheung, Kingman ^[1]

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1. Department of Physics, National Tsing Hua University, Hsinchu 300, Taiwan (China)

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{sub s}{approx}>0.98. We show that via a positive quadratic and a negative quartic correction the spectral index can be reduced to n{sub 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}{approx}<0.01 for F-term inflation and g{approx}<0.05 for D-term inflation.

• OSTI ID: 22156933
• Journal Information: Journal of Cosmology and Astroparticle Physics, Journal Name: Journal of Cosmology and Astroparticle Physics Journal Issue: 03 Vol. 2009; ISSN 1475-7516
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
INFLATIONARY UNIVERSE
RADIATIVE CORRECTIONS
SUPERSYMMETRY