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Supersymmetric hybrid inflation with non-minimal Kähler potential

Bastero-Gil, M., King, S.F. and Shafi, Q. (2007) Supersymmetric hybrid inflation with non-minimal Kähler potential Physics Letters B, 651, (5-6), pp. 345-351.

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Minimal supersymmetric hybrid inflation based on a minimal Kähler potential predicts a spectral index ns0.98. On the other hand, WMAP three year data prefers a central value ns?0.95. We propose a class of supersymmetric hybrid inflation models based on the same minimal superpotential but with a non-minimal Kähler potential. Including radiative corrections using the one-loop effective potential, we show that the prediction for the spectral index is sensitive to the small non-minimal corrections, and can lead to a significantly red-tilted spectrum, in agreement with WMAP.

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Published date: 9 August 2007


Local EPrints ID: 57041
ISSN: 0370-2693
PURE UUID: 23a1accf-6f1e-4e7a-a19f-8b7f01797565

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Date deposited: 13 Aug 2008
Last modified: 15 Oct 2017 19:14

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Author: M. Bastero-Gil
Author: S.F. King
Author: Q. Shafi

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