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arXiv · hep-ph/0612263

The Decay of the Inflaton in No-scale Supergravity

Motoi Endo·Kenji Kadota·Keith A. Olive·Fuminobu Takahashi·T. T. Yanagida
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Abstract

We study the decay of the inflaton in no-scale supergravity and show that decay due to the gravitational interactions through supergravity effects is highly suppressed relative to the case in minimal supergravity or models with a generic Kahler potential. We also show that decay to gravitinos is suppressed. We demonstrate that decay and sufficient reheating are possible with the introduction of a non-trivial gauge kinetic term. This channel may be dominant in no-scale supergravity, yet yields a re-heating temperature which is low enough to avoid the gravitino problem while high enough for Big Bang Nucleosynthesis and baryogenesis.

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Motoi Endo, Kenji Kadota, Keith A. Olive, Fuminobu Takahashi, T. T. Yanagida. 2007-01-31. The Decay of the Inflaton in No-scale Supergravity. https://doi.org/10.1088/1475-7516%2F2007%2F02%2F018

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