Axinos as Dark Matter in the Universe

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The axino is the fermionic superpartner of the axion. Assuming the axino is the lightest supersymmetric particle and stable due to R-parity conservation, we compute the relic axino density from thermal reactions in the early Universe. From the comparison with the WMAP results, we find that thermally produced axinos could provide the dominant part of cold dark matter, for example, for an axino mass of 100 keV and a reheating temperature of 10^6 GeV.
4 pages, 2 figures. Talk presented at 39th Rencontres de Moriond, "Exploring the Universe," La Thuile, Italy, March 28 - April 4, 2004

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High Energy Physics - Phenomenology, Astrophysics

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http://salesiana.dossiersoluciones.com/handle/123456789/43528

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/hep-ph/0406021
 http://arxiv.org/abs/hep-ph/0406021

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arXiv