Physics – High Energy Physics – High Energy Physics - Experiment
Scientific paper
2003-11-14
Physics
High Energy Physics
High Energy Physics - Experiment
10 pages, 7 figures, to appear in the "Proceedings of the 8th ICATPP Conference on Astroparticle, Particle, Space Physics, Det
Scientific paper
The PICASSO project is a cold dark matter (CDM) search experiment relying on the superheated droplet technique. The detectors use superheated freon liquid droplets (active material) dispersed and trapped in a polymerized gel. This detection technique is based on the phase transition of superheated droplets at room or moderate temperatures. The phase transitions are induced by nuclear recoils when undergoing interactions with particles, including CDM candidates such as the neutralinos predicted by supersymmetric models. The suitability of the technique for this purpose has been demonstrated by R&D studies performed over several years on detectors of various composition and volume. Simulations performed to understand the detector response to neutrons and alpha particles are presented along with corresponding data obtained at the Montreal Laboratory.
Barnabe-Heider M.
Behnke E.
Behnke Jerold J.
Doane P.
Feighery W.
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