Inert scalar dark matter in an extra dimension inspired model
arXiv:1407.5999 · doi:10.1088/1475-7516/2014/10/059
Abstract
In this paper we analyze a dark matter model inspired by theories with extra dimensions. The dark matter candidate corresponds to the first Kaluza-Klein mode of a real scalar added to the Standard Model. The tower of new particles enriches the calculation of the relic abundance. For large mass splitting, the model converges to the predictions of the inert singlet dark matter model. For nearly degenerate mass spectrum, coannihilations increase the cross-sections used for direct and indirect dark matter searches. Moreover, the Kaluza-Klein zero mode can mix with the SM higgs and further constraints can be applied.
arXiv comment21 pages, 6 figures. We have improved the text and added references. Version published in JCAP
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