Aug 23 – 28, 2010
Bonn
Europe/Berlin timezone

Gravitino dark matter in the fully constrained NMSSM

Aug 26, 2010, 2:34 PM
15m
Hörsaal I (Bonn)

Hörsaal I

Bonn

Nussallee 12

Speaker

Dr Grigoris Panotopoulos (University of Valencia)

Description

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.

Primary author

Dr Grigoris Panotopoulos (University of Valencia)

Co-author

Prof. Gabriela Barenboim (University of Valencia)

Presentation materials