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Gravitino cosmology with a very light neutralino
- Source :
- Phys. Rev. D85 (2012) 065027
- Publication Year :
- 2011
-
Abstract
- It has been shown that very light or even massless neutralinos are consistent with all current experiments, given non-universal gaugino masses. Furthermore, a very light neutralino is consistent with astrophysical bounds from supernov{\ae} and cosmological bounds on dark matter. Here we study the cosmological constraints on this scenario from Big Bang nucleosynthesis taking gravitinos into account and find that a very light neutralino is even favoured by current observations.<br />Comment: 9 pages, 3 figures
Details
- Database :
- arXiv
- Journal :
- Phys. Rev. D85 (2012) 065027
- Publication Type :
- Report
- Accession number :
- edsarx.1111.5715
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1103/PhysRevD.85.065027