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arXiv · hep-ph/0102200

Detectability of a subdominant density component of cold dark matter

Gintaras Duda·Graciela Gelmini·Paolo Gondolo
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Abstract

Here we examine the detectability of collisionless dark matter candidates that may constitute not all but only a subdominant component of galactic cold dark matter. We show that current axion searches are not suited for a subdominant component, while direct WIMP searches would not be severely affected by the reduced density. In fact, the direct detection rates of neutralinos stay almost constant even if neutralinos constitute 1% of the halo dark matter. Only for lower densities do the rates decrease with density. Even neutralinos accounting for only $10^{-4}$ of the local dark halo density are within proposed future discovery limits. We comment also on indirect WIMP searches.

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Gintaras Duda, Graciela Gelmini, Paolo Gondolo. 2001-06-21. Detectability of a subdominant density component of cold dark matter. https://doi.org/10.1016/s0370-2693(02)01266-2

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