Supersymmetric dark matter, catalyzed BBN, and heavy moduli in mSUGRA with gravitino LSP and stau NLSP
arXiv:0812.3987 · doi:10.1016/j.physletb.2008.12.047
Abstract
In mSUGRA model we assume that gravitino, the LSP, plays the role of cold dark matter in the universe, while the lightest stau, the NLSP, catalyzes primordial BBN reconciling the discrepancy between theory and observations. We have taken into account all gravitino production mechanisms, namely decay from heavy scalar fields, decay from the NLSP, and from the thermal bath. We find that the dark matter constraint is incompatible with the lower bound on the reheating temperature
11 pages, 3 figures
References in corpus (11)
- Wilkinson Microwave Anisotropy Probe (WMAP) Three Year Results: Implications for Cosmology
- Big Bang Nucleosynthesis Constraints on Hadronically and Electromagnetically Decaying Relic Neutral Particles
- Thermal Gravitino Production and Collider Tests of Leptogenesis
- Thermal production of gravitinos
- Particle physics catalysis of thermal Big Bang Nucleosynthesis
- Gravitino Production from Heavy Moduli Decay and Cosmological Moduli Problem Revived
- Bound-State Effects on Light-Element Abundances in Gravitino Dark Matter Scenarios
- Gravitinos from Heavy Scalar Decay
- Big-Bang Nucleosynthesis with Long-Lived Charged Slepton
- Implications of Catalyzed BBN in the CMSSM with Gravitino Dark Matter
- Gravitino dark matter from increased thermal relic particles