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Gravitino dark matter in the CMSSM
Open accessAbstract
We consider the possibility that the gravitino might be the lightest supersymmetric particle (LSP) in the constrained minimal extension of the Standard Model (CMSSM). In this case, the next-to-lightest supersymmetric particle (NSP) would be unstable, with an abundance constrained by the concordance between the observed light-element abundances and those calculated on the basis of the baryon-to-entropy ratio determined using CMB data. We modify and extend previous CMSSM relic neutralino calculations to evaluate the NSP density, also in the case that the NSP is the lighter stau, and show that the constraint from late NSP decays is respected only in a limited region of the CMSSM parameter space. In this region, gravitinos might constitute the dark matter.
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Cites
Bennett, C. L., Halpern, M., Hinshaw, G., Jarosik, N., Kogut, A., Limon, M., Meyer, S. S., Page, L., Spergel, D. N., Tucker, G. S., et al. (2003) · The Astrophysical Journal Supplement Series · doi:10.1086/377253 · Cited by 4,860
Cited by
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Bertone, G., Hooper, D., & Silk, J. (2005) · Physics Reports · doi:10.1016/j.physrep.2004.08.031 · Cited by 4,979
Dark Matter Candidates from Particle Physics and Methods of Detection
Feng, J. L. (2010) · Annual Review of Astronomy and Astrophysics · doi:10.1146/annurev-astro-082708-101659 · Cited by 1,448
Axions and the strongCPproblem
Kim, J. E., & Carosi, G. (2010) · Reviews of Modern Physics · doi:10.1103/revmodphys.82.557 · Cited by 916
Aspects of Split Supersymmetry
Arkani-Hamed, N., Dimopoulos, S., Giudice, G. F., & Romanino, A. (2005) · Nuclear Physics B · doi:10.1016/j.nuclphysb.2004.12.026 · Cited by 666
Big-bang nucleosynthesis and gravitinos
Kawasaki, M., Kohri, K., Moroi, T., & Yotsuyanagi, A. (2008) · Physical Review D · doi:10.1103/physrevd.78.065011 · Cited by 458
Metadata
- Authors
- Ellis, J., Olive, K. A., Santoso, Y., & Spanos, V. C.
- Venue
- Physics Letters B
- Publisher
- Elsevier BV
- Published
- 2004-05
- Volume
- 588
- Issue
- 1-2
- Pages
- 7-16
- ISSN
- 0370-2693 (ISSN-L)
- OpenAlex
- W2162273898
- Cited by
- 215
- References
- 1
- FWCI
- 15.51
- Type
- journal article
- Language
- en
- Open access
- hybrid
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- Ellis, J., Olive, K. A., Santoso, Y., & Spanos, V. C. (2004). Gravitino dark matter in the CMSSM. Physics Letters B. https://doi.org/10.1016/j.physletb.2004.03.021
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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