Published February 9, 2006 | Version v1
Journal article

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

  • 1. Department of Physics, School of Science, University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-0033 (Japan)
  • 2. Research Center for the Early Universe (RESCEU), School of Science, University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-0033 (Japan)
  • 3. International Center for Elementary Particle Physics (ICEPP), University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-0033 (Japan)

Description

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, ap and an. The limits excluded a part of the parameter space allowed by the annual modulation observation of the DAMA NaI experiment

Additional details

Identifiers

DOI
10.1016/j.physletb.2005.12.025;
arXiv
arXiv:astro-ph/0510390v1;
PII
S0370-2693(05)01818-6;

Publishing Information

Journal Title
Physics Letters. Section B
Journal Volume
633
Journal Issue
2-3
Journal Page Range
p. 195-200
ISSN
0370-2693
CODEN
PYLBAJ

Optional Information

Copyright
Copyright (c) 2005 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.