Split-SUSY dark matter in light of direct detection limits
High Energy Physics - Phenomenology
2011-11-16 v2 High Energy Astrophysical Phenomena
High Energy Physics - Experiment
Abstract
We examine the present and future XENON limits on the neutralino dark matter in split supersymmetry (split-SUSY). Through a scan over the parameter space under the current constraints from collider experiments and the WMAP measurement of the dark matter relic density, we find that in the allowed parameter space a large part has been excluded by the present XENON100 limits and a further largish part can be covered by the future exposure (6000 kg-day). In case of unobservation of dark matter with such an exposure in the future, the lightest neutralino will remain bino-like and its annihilation is mainly through exchanging the SM-like Higgs boson in order to get the required relic density.
Cite
@article{arxiv.1108.2834,
title = {Split-SUSY dark matter in light of direct detection limits},
author = {Junjie Cao and Wenyu Wang and Jin Min Yang},
journal= {arXiv preprint arXiv:1108.2834},
year = {2011}
}
Comments
Version in PLB (results updated)