1. Simplified smooth inflation with observable gravity waves.
- Author
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Rehman, Mansoor Ur and Shafi, Qaisar
- Subjects
- *
SMOOTHNESS of functions , *GRAVITY waves , *SUPERSYMMETRY , *INFLATIONARY universe , *ASTRONOMICAL observations , *KAHLERIAN manifolds - Abstract
We consider a simplified version of supersymmetric smooth hybrid inflation which contains a single ultraviolet cutoff mP = 2.4 × 1018 GeV, instead of the two cutoffs mP and M* ∼ few × 1017 GeV that are normally employed. With global supersymmetry the scalar spectral index ns ≃ 0.97, which is in very good agreement with the WMAP observations. With a nonminimal Kahler potential, the supergravity version of the model is compatible with the current central values of ns and also yields potentially observable gravity waves (tensor to scalar ratio r ≲ 0.02). [ABSTRACT FROM AUTHOR]
- Published
- 2012
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