6533b871fe1ef96bd12d1b7e
RESEARCH PRODUCT
Gravitino dark matter in the constrained next-to-minimal supersymmetric standard model with neutralino next-to-lightest superpartner
Gabriela BarenboimGrigoris Panotopoulossubject
High Energy Physics - TheoryPhysicsInflation (cosmology)Nuclear and High Energy PhysicsParticle physicsCosmology and Nongalactic Astrophysics (astro-ph.CO)Dark matterHigh Energy Physics::PhenomenologyFOS: Physical sciencesSuperpartnerFísicaGeneral Relativity and Quantum Cosmology (gr-qc)Lightest Supersymmetric ParticleGeneral Relativity and Quantum CosmologyNext-to-Minimal Supersymmetric Standard ModelHigh Energy Physics - PhenomenologyGeneral Relativity and Quantum CosmologyHigh Energy Physics - Phenomenology (hep-ph)High Energy Physics - Theory (hep-th)NeutralinoGravitinoHigh Energy Physics::ExperimentAstrophysics - Cosmology and Nongalactic AstrophysicsMinimal Supersymmetric Standard Modeldescription
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.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2010-04-26 |