Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8198121 | Physics Letters B | 2006 | 7 Pages |
Abstract
We point out that supergravity effects enable the inflaton to decay into all matter fields, including the visible and the supersymmetry breaking sectors, once the inflaton acquires a non-vanishing vacuum expectation value. The new decay processes have great impacts on cosmology; the reheating temperature is bounded below; the gravitinos are produced by the inflaton decay in a broad class of the dynamical supersymmetry breaking models. We derive the bounds on the inflaton mass and the vacuum expectation value, which severely constrain high-scale inflations such as the hybrid and chaotic inflation models.
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Authors
Motoi Endo, Masahiro Kawasaki, Fuminobu Takahashi, T.T. Yanagida,