Experimental relevance of low reheating temperature cosmologies

Details Experimental relevance of low reheating temperature cosmologies Experimental relevance of low reheating temperature cosmologies

2008-05-13

arxiv.org/abs/0805.1824v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

Talk given at the 43rd Rencontres de Moriond- Cosmology, La Thuile, Italy, March 15 - 22, 2008. 4 pages, 3 figures, uses morio

Scientific paper

Standard simple assumptions are usually made about the pre-Big Bang Nucleosynthesis epoch, from which we do not have observations. Modifying these assumptions, the predicted density of relic particles such as neutralinos and sterile neutrinos can be very different from that in the standard case. For example, neutralinos could have the dark matter density in (almost) any supersymmetric model, and sterile neutrinos with mixings large enough to be soon detected in neutrino experiments would become cosmologically acceptable. These possibilities are important in view of what the LHC, and neutrino experiments could soon find.

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