Inflaton Decay in Supergravity and Gravitino Problem

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We have recently shown that, if the inflaton has a nonzero vacuum expectation value, it generically couples to any matter fields that appear in the superpotential at the tree level, and to any gauge sectors through anomalies in the supergravity. Through these processes, the inflaton decays into the supersymmetry breaking sector, producing many gravitinos. The inflaton also directly decays into a pair of the gravitinos. Taking account of these processes, we derive constraints on both inflation models and supersymmetry breaking scenarios for avoiding overproduction of the gravitinos.
Talk given at PASCOS-07, to appear in the proceedings. 4 pages

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High Energy Physics - Phenomenology

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http://salesiana.dossiersoluciones.com/handle/123456789/204429

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/0709.1786
 http://arxiv.org/abs/0709.1786
 AIPConf.Proc.957:441-444,2007; AIPConf.Proc.1040:57-60,2008
 doi:10.1063/1.2823823 10.1063/1.2981553

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arXiv