Asymmetric dark matter in braneworld cosmology

Meehan, Michael T., and Whittingham, Ian B. (2014) Asymmetric dark matter in braneworld cosmology. Journal of Cosmology and Astroparticle Physics, 2014 (6). 18. pp. 1-18.

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Abstract

We investigate the effect of a braneworld expansion era on the relic density of asymmetric dark matter. We find that the enhanced expansion rate in the early universe predicted by the Randall-Sundrum II (RSII) model leads to earlier particle freeze-out and an enhanced relic density. This effect has been observed previously by Okada and Seto (2004) for symmetric dark matter models and here we extend their results to the case of asymmetric dark matter. We also discuss the enhanced asymmetric annihilation rate in the braneworld scenario and its implications for indirect detection experiments.

Item ID: 34175
Item Type: Article (Research - C1)
ISSN: 1475-7516
Keywords: dark matter theory, dark matter experiments, extra dimensions
Date Deposited: 22 Jul 2014 06:47
FoR Codes: 02 PHYSICAL SCIENCES > 0201 Astronomical and Space Sciences > 020103 Cosmology and Extragalactic Astronomy @ 100%
SEO Codes: 97 EXPANDING KNOWLEDGE > 970102 Expanding Knowledge in the Physical Sciences @ 100%
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