First results from dark matter search experiment with LiF bolometer at Kamioka underground laboratory
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- 作者：Miuchi ; K. ; Minowa ; M. ; Takeda ; A. ; Sekiya ; H. ; Shimizu ; Y. ; Inoue ; Y. ; Ootani ; W. ; Ootuka ; Y.
- 关键词：14.80.Ly ; 29.40.Ym ; 95.35.+d ; Dark matter ; Neutralino ; Weakly interacting massive particle ; Lithium fluoride ; Bolometer
- 刊名：Astroparticle Physics
- 出版年：2003
- 出版时间：April, 2003
- 年：2003
- 卷：19
- 期：1
- 页码：135-144
- 全文大小：597 K
文摘
The Tokyo group has performed the first underground dark matter search experiment from 2001 through 2002 at Kamioka Observatory (2700 m.w.e). The detector is eight lithium fluoride bolometers with a total mass of 168 g and aims for the direct detection of weakly interacting massive particles (WIMPs) via spin-dependent interaction. With an exposure of 4.1 kgdays, 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.