Mainly axion cold dark matter from natural supersymmetry
  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.
