Split-SUSY dark matter in light of direct detection limits

Details Split-SUSY dark matter in light of direct detection limits Split-SUSY dark matter in light of direct detection limits

2011-08-14

arxiv.org/abs/1108.2834v2

Phys.Lett.B706:72-76,2011

Physics

High Energy Physics

High Energy Physics - Phenomenology

Version in PLB (results updated)

Scientific paper

10.1016/j.physletb.2011.11.003

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.

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