Models of particle dark matter

Abstract

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, gc 1 0 should be a component of the cold dark matter over almost the entire parameter space. Relic density calculations are described and the parameter space is limited to 0.1 ≤ Ω gc 1 0 h 2 ≤ 0.4. The effects of recent accelerator experiments (measurements of the top quark mass and b → s + γ decay) on predicted detector 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 Ω gc 1 0 h 2 and from non-universal soft breaking masses are discussed.