First results from dark matter search experiment with LiF bolometer at Kamioka Underground Laboratory
Abstract
Tokyo group has performed first underground dark matter search experiment in 2001 through 2002 at Kamioka Observatory(2700m.w.e). The detector is eight LiF bolometers with total mass 168g aiming for the direct detection of WIMPs via spin-dependent interaction. With a total exposure of 4.1 kg days, we derived the limits in the ap-an (WIMP-nucleon couplings) plane and excluded a large part of the parameter space allowed by the UKDMC experiment.
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