2011/12/21 by Ioannis Dalianis, Dalianis, Ioannis
Physics and Astronomy · #Particle physics theoretical and experimental studies #Cosmology and Gravitation Theories #Dark Matter and Cosmic Phenomena
paper · pdf · doi:10.48550/arxiv.1112.5076
In this thesis, we study the details of some fundamental cosmological problems of the gauge mediated supersymmetry breakdown and we probe the supersymmetry breaking sector by cosmological arguments. We manifest that problems like the metastable vacuum selection and the gravitino overproduction in the reheated early universe are naturally absent in the most general class of gauge mediation models without including additional ingredients or assumptions. We also find that the gravitino can generically account for the bulk dark matter of the universe. Cosmological implications of a stringy UV-completion of the supersymmetry breaking sector have been also considered.