Mainly axion cold dark matter from natural supersymmetry
High Energy Physics - Phenomenology
2015-03-02 v2 Cosmology and Nongalactic Astrophysics
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.
Keywords
Cite
@article{arxiv.1309.0519,
title = {Mainly axion cold dark matter from natural supersymmetry},
author = {Kyu Jung Bae and Howard Baer and Eung Jin Chun},
journal= {arXiv preprint arXiv:1309.0519},
year = {2015}
}
Comments
5 pages plus 4 .eps figures; final version includes updated plots