Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2010-04-26
Physics
High Energy Physics
High Energy Physics - Phenomenology
20 pages, 5 figures
Scientific paper
The viability of a possible cosmological scenario is investigated. The theoretical framework is the constrained next-to-minimal supersymmetric standard model (cNMSSM), with a gravitino playing the role of the lightest supersymmetric particle (LSP) and a neutralino acting as the next-to-lightest supersymmetric particle (NLSP). All the necessary constraints from colliders and cosmology have been taken into account. For gravitino we have considered the two usual production mechanisms, namely out-of equillibrium decay from the NLSP, and scattering processes from the thermal bath. The maximum allowed reheating temperature after inflation, as well as the maximum allowed gravitino mass are determined.
Barenboim Gabriela
Panotopoulos Grigoris
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