Eluding the BBN constraints on the stable gravitino

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We investigate how late-time entropy production weakens the Big-Bang Nucleosynthesis (BBN) constraints on the gravitino as lightest superparticle with a charged slepton as next-to-lightest superparticle. We find that with a moderate amount of entropy production, the BBN constraints can be eluded for most of the parameter space relevant for the discovery of the gravitino. This is encouraging for experimental tests of supergravity at LHC and ILC.
6 pages, 1 figure

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High Energy Physics - Phenomenology

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http://salesiana.dossiersoluciones.com/handle/123456789/176358

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/hep-ph/0605164
 http://arxiv.org/abs/hep-ph/0605164
 Phys.Lett.B643:124-126,2006
 doi:10.1016/j.physletb.2006.07.070

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arXiv