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arXiv · 1309.0519

Mainly axion cold dark matter from natural supersymmetry

Kyu Jung Bae·Howard Baer·Eung Jin Chun
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Abstract

By eschewing finetuning from the electroweak and QCD sectors of supersymmetry (natural supersymmetry or SUSY), and by invoking the Kim-Nilles solution to the SUSY mu problem, one is lead to models wherein the dark matter is comprised of a mixture of axions and higgsino-like WIMPs. Over a large range of Peccei-Quinn breaking scale f_a~ 10^9-10^{12} GeV, one then expects about 90-95% axion dark matter. In such a scenario, both axion and WIMP direct detection may be expected.

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Kyu Jung Bae, Howard Baer, Eung Jin Chun. 2013-09-02. Mainly axion cold dark matter from natural supersymmetry. https://doi.org/10.1103/physrevd.89.031701

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