The gravitino-stau scenario after catalyzed big bang nucleosynthesis
Journal Article
·
· Journal of Cosmology and Astroparticle Physics
- The Abdus Salam ICTP, Strada Costiera 11, 34014 Trieste (Italy)
- Physik-Department T30, Technische Universitaet Muenchen, James-Franck-Strasse, 85748 Garching (Germany)
We consider the impact of catalyzed big bang nucleosynthesis on theories with a gravitino lightest superparticle and a charged slepton next-to-lightest superparticle. In models where the gravitino to gaugino mass ratio is bounded from below, such as gaugino-mediated supersymmetry breaking, we derive a lower bound on the gaugino mass parameter m{sub 1/2}. As a concrete example, we determine the parameter space of gaugino mediation that is compatible with all cosmological constraints.
- OSTI ID:
- 22137756
- Journal Information:
- Journal of Cosmology and Astroparticle Physics, Vol. 2008, Issue 01; Other Information: Country of input: International Atomic Energy Agency (IAEA); ISSN 1475-7516
- Country of Publication:
- United States
- Language:
- English
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