Models of Particle Dark Matter

Physics – Nuclear Physics

Scientific paper

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Scientific paper

Predictions of dark matter detection rates for terrestial detectors are given within the framework of supergravity grand unified models with R parity invariance. These models predict that the lightest neutralino,χ , should be a component of the cold dark matter over almost the entire parameter space. Relic density calculations are described and the parameters space is limited to 0.1 <= Ωχ01h2 <= 0.4. The effects of recent accelerator experiments (measurements of the quark mass and b -> s + γ decay) on predicted event rates is described. Detector event rates are shown to range from about (10-5 to 10) events/dg da. Effects on the event rates by varying the bounds on Ωχ01h2 and from non-universal soft breaking masses are discussed.

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