Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1997-06-25
Phys.Rev.D57:567-577,1998
Physics
High Energy Physics
High Energy Physics - Phenomenology
25 page REVTEX file including 9 PS figures
Scientific paper
10.1103/PhysRevD.57.567
We calculate expected event rates for direct detection of relic neutralinos as a function of parameter space of the minimal supergravity model. Numerical results are presented for the specific case of a $^{73}$Ge detector. We find significant detection rates ($R> 0.01$ events/kg/day) in regions of parameter space most favored by constraints from $B\to X_s\gamma$ and the cosmological relic density of neutralinos. The detection rates are especially large in regions of large $\tan\beta$, where many conventional signals for supersymmetry at collider experiments are difficult to detect. If the parameter $\tan\beta$ is large, then there is a significant probability that the first direct evidence for supersymmetry could come from direct detection experiments, rather than from collider searches for sparticles.
Baer Howard
Brhlik Michal
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