archived; figs deleted here; HP4
نویسنده
چکیده
The search for cold dark-matter WIMP particles is now entering the level of supersymmetric particle sensitivity. It is considered that the most likely neutralino mass is of order 100 GeV and the expected interaction rate is from 10 10 events/kg/day. In order to carry out a successful search, we need (1) a massive (~50kg) powerful background-discriminating detector, and (2) a high-A target to match the effective mass of the WIMP particles to give the largest recoil energies. Over the past few years, the UCLA Torino ICARUS team has been developing just such a detector with H. Wang (UCLA) and P. Picchi (Torino), who are the leading contributors to this research. In this paper we discuss the progress in this area and the plans to construct a 40-kg detector (ZEPLIN II) for the search for WIMP dark matter in the near future.
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