Supersymmetry and Dark Matter post LHC8: why we may expect both axion
  and WIMP detection
  In the post-LHC8 era, it is perceived that what is left of SUSY model
parameter space is highly finetuned in the EW sector (EWFT). We discuss how
conventional measures overestimate EWFT in SUSY theory. Radiatively-driven
natural SUSY (RNS) models maintain the SUSY GUT paradigm with low EWFT at 10%
level, but are characterized by light higgsinos ~100-300 GeV and a thermal
underabundance of WIMP dark matter. Implementing the SUSY DFSZ solution to the
strong CP problem explains the small \mu parameter but indicates dark matter
should be comprised mainly of axions with a small admixture of higgsino-like
WIMPs. While RNS might escape LHC14 searches, we would expect ultimately direct
detection of both WIMPs and axions. An e^+e^- collider with \sqrt{s} ~ 500-600
GeV should provide a thorough search for the predicted light higgsinos.
