Dark matter search experiment with CaF2(Eu) scintillator at Kamioka Observatory

Details Dark matter search experiment with CaF2(Eu) scintillator at Kamioka Observatory Dark matter search experiment with CaF2(Eu) scintillator at Kamioka Observatory

2005-10-13

arxiv.org/abs/astro-ph/0510390v1

Phys.Lett.B633:195-200,2006

Astronomy and Astrophysics

Astrophysics

11 pages, 4 figures

Scientific paper

10.1016/j.physletb.2005.12.025

We report recent results of a WIMP dark matter search experiment using 310g 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, a_p and a_n. The limits excluded a part of the parameter space allowed by the annual modulation observation of the DAMA NaI experiment.

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