ZEPLIN-II limits on WIMP-nucelon interactions
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ZEPLIN II is a two-phase xenon detector designed to detect dark matter in the form of Weakly Interacting Massive Particles (WIMPs). Following the first 31-day underground run in Boidby Mine, UK, the collaboration published dark matter Umits in January 2007; the first such limits using two-phase xenon technology. We outline the key detector design, performance and residts here. © 2009 American Institute of Physics.