The Gravitino-Stau Scenario after Catalyzed BBN

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We consider the impact of Catalyzed Big Bang Nucleosynthesis on theories with a gravitino LSP and a charged slepton NLSP. In models where the gravitino to gaugino mass ratio is bounded from below, such as gaugino-mediated SUSY breaking, we derive a lower bound on the gaugino mass parameter m_1/2. As a concrete example, we determine the parameter space of gaugino mediation that is compatible with all cosmological constraints.
1+14 pages, 6 figures; v2: minor clarifications, 1 reference added, matches version to appear in JCAP

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High Energy Physics - Phenomenology

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http://salesiana.dossiersoluciones.com/handle/123456789/214191

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/0710.4528
 http://arxiv.org/abs/0710.4528
 JCAP 0801:011,2008
 doi:10.1088/1475-7516/2008/01/011

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arXiv