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What Mass Are the Smallest Protohalos?
Open accessAbstract
We calculate the kinetic-decoupling temperature for weakly interacting massive particles (WIMPs) in supersymmetric (SUSY) and extra dimensional models that can account for the cold-dark-matter abundance determined from cosmic microwave background measurements. Depending on the parameters of the particle-physics model, a wide variety of decoupling temperatures is possible, ranging from several MeV to a few GeV. These decoupling temperatures imply a range of masses for the smallest protohalos much larger than previously thought--ranging from 10(-6)M(+ in a circle) to 10(2)M(+ in a circle). We expect the range of protohalos masses derived here to be characteristic of most particle-physics models that can thermally accommodate the required relic abundance of WIMP dark matter, even beyond SUSY and extra dimensions.
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Spergel, D. N., Verde, L., Peiris, H. V., Komatsu, E., Nolta, M. R., Bennett, C. L., Halpern, M., Hinshaw, G., Jarosik, N., Kogut, A., et al. (2003) · The Astrophysical Journal Supplement Series · doi:10.1086/377226 · Cited by 10,976
Particle dark matter: evidence, candidates and constraints
Bertone, G., Hooper, D., & Silk, J. (2005) · Physics Reports · doi:10.1016/j.physrep.2004.08.031 · Cited by 4,979
Cited by
Dark matter self-interactions and small scale structure
Tulin, S., & Yu, H.-B. (2018) · Physics Reports · doi:10.1016/j.physrep.2017.11.004 · Cited by 1,111
Dark matter and collider phenomenology of universal extra dimensions
Hooper, D., & Profumo, S. (2007) · Physics Reports · doi:10.1016/j.physrep.2007.09.003 · Cited by 358
Self-citationD'Amico, G., Kamionkowski, M., & Sigurdson, K. (2009) · arXiv · doi:10.48550/arxiv.0907.1912 · Cited by 11
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Metadata
- Authors
- Profumo, S., Sigurdson, K., & Kamionkowski, M.
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 2006-07-18
- Volume
- 97
- Issue
- 3
- Pages
- 031301-031301
- ISSN
- 0031-9007 (ISSN-L)
- 1079-7114
- OpenAlex
- W2123518222
- Cited by
- 226
- References
- 2
- FWCI
- 13.50
- Type
- journal article
- Language
- en
- Open access
- green
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