Abstract
In the frame of an effective MSSM model without gaugino-mass unification at a grand unification scale, we set a lower bound on the neutralino mass based on the WMAP data on Ω CDM . We then discuss the prospects of detection of the light relic neutralinos which arise in this class of models; they can provide detectable rates in direct detection experiments and a detectable antiproton flux from annihilation in the galactic halo. The gamma-ray signal can reach detectable levels only for strong singular dark matter density profiles.
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