XXth International Conference on Neutrino Physics and Astrophysics

Poster Abstract

V.A.Kudryavtsev for the Boulby Dark Matter Collaboration

Dark Matter Experiments at Boulby Mine

The status of dark matter searches at the UK Boulby mine is reviewed. The experiments are searching for Weakly Interacting Massive Particles (WIMPs) using various techniques. These techniques at present include NaI(Tl) detectors (NAIAD experiment), liquid xenon detector (ZEPLIN I) and Time Projection Chamber with directional sensitivity (DRIFT I). Array of NaI(Tl) crystals is aimed to confirm or refute positive annual modulation signal claimed by the DAMA experiment with similar type detectors. Scintillation properties and high discrimination power of liquid xenon make it sensitive to the region of parameter space favoured by some SUSY models. The first stage DRIFT detector uses directionality to improve its sensitivity to WIMP-induced nuclear recoils. Recent results from all three experiments are presented. Prospects for future detectors, capable of covering large range of parameters favoured by SUSY models, are described. This includes two stage liquid/gas xenon detectors ZEPLIN II / ZEPLIN III, able to detect both scintillation and ionisation of charged particles, and large-scale DRIFT detector with directional sensitivity.

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