Dark matter search experiment with CaF2(Eu) scintillator at Kamioka Observatory
Dark matter search experiment with CaF2(Eu) scintillator at Kamioka Observatory
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DOI:
10.1016/j.physletb.2005.12.025
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发表时间:
2005-10
影响因子:
4.4
通讯作者:
Y. Shimizu;M. Minowa;W. Suganuma;Y. Inoue
中科院分区:
文献类型:
--
作者:
Y. Shimizu;M. Minowa;W. Suganuma;Y. Inoue
We report recent results of a WIMP dark matter search experiment using 310 g of CaF2(Eu) scintillator at Kamioka Observatory. We chose a highly radio-pure crystal, PMTs and radiation shields, so that the background rate decreased considerably. We derived limits on the spin dependent WIMP-proton and WIMP-neutron coupling coefficients, apand an. The limits excluded a part of the parameter space allowed by the annual modulation observation of the DAMA NaI experiment.