Event Rates in Dark Matter Detectors For Neutralinos Including Constraints From The $b\rightarrow sγ$ Decay

Details Event Rates in Dark Matter Detectors For Neutralinos Including Constraints From The $b\rightarrow sγ$ Decay Event Rates in Dark Matter Detectors For Neutralinos Including Constraints From The $b\rightarrow sγ$ Decay

1994-09-13

arxiv.org/abs/hep-ph/9409301v1

Phys.Rev.Lett.74:4592-4595,1995

Physics

High Energy Physics

High Energy Physics - Phenomenology

9 pages Latex+1page of figs(hard copy available on request),CERN-TH.7363/94, NUB-TH-3099/94,CTP-TAMU-38/94

Scientific paper

10.1103/PhysRevLett.74.4592

Event rates for dark matter detectors in neutralino--nucleus scattering are studied for supergravity unified models, including the constraint arising from the $b\rightarrow s\gamma$ experiment. The recent experimental measurement of this decay by the CLEO Collaboration leads to strong constraints on the SUSY particle spectrum,and also significantly affects the event rates in dark matter detectors. The analysis given here uses the accurate method for the computation of the relic density and leads to a dip in the event rate when the neutralino mass is $\sim M_Z/2$ due to the $Z$-pole, and similar results hold when the neutralino mass is $\sim m_h/2$ due to the Higgs pole . Implication of these results for dark matter detectors are discussed.

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