Direct detection of WIMP dark matter - techniques above 100K

Details Direct detection of WIMP dark matter - techniques above 100K Direct detection of WIMP dark matter - techniques above 100K

Nov 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996nuphs..51..284s&link_type=abstract

Nuclear Physics B Proceedings Supplements, v. 51, p. 284-293.

Physics

Nuclear Physics

Scientific paper

Searches for rare nuclear recoil events, from interactions with hypothetical weakly interacting dark matter particles, require novel methods of distinguishing nuclear recoils from the much larger gamma and beta background. This review covers detectors which operate at temperatures above 100K. New limits have now been set by pulse shape analysis in NaI targets at 300K, and much improved discrimination may be possible at 100-160K. Achievement of sensitivity to neutralino event rates would be possible using combined scintillation and ionisation processes in liquid xenon (160K). Studies of future directional detectors are also in progress, based on either range effects in solids or tracks in low pressure gases. A comparison is made of potential sensitivities of these techniques, together with a discussion of neutron background reduction.

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