Limits on the WIMP-Nucleon Coupling Coefficients from Dark Matter Search Experiment with NaF Bolometer
Abstract
We have performed the underground dark matter search experiment with a sodium fl uoride (NaF) bolometer array from 2002 through 2003 at Kamioka Observatory (2700 m.w.e.). The bolometer array consists of eight NaF absorbers with a total mass of 176 g, and sensitive NTD germanium thermistors glued to each of them. This experiment aims for the direct detection of weakly interacting massive part icles (WIMPs) via spin-dependent interaction. With an exposure of 3.38 kg days, we derived the limits on the WIMP-n ucleon coupling coefficients, a_p and a_n. These limits confirmed and tightened those derived from our previous results wit h the lithium fluoride (LiF) bolometer. Our results excluded the parameter space complementary to the results obtained b y NaI detectors of UKDMC experiment.
Cite
@article{arxiv.astro-ph/0306365,
title = {Limits on the WIMP-Nucleon Coupling Coefficients from Dark Matter Search Experiment with NaF Bolometer},
author = {A. Takeda and M. Minowa and K. Miuchi and H. Sekiya and Y. Shimizu and Y. Inoue and W. Ootani and Y. Ootuka},
journal= {arXiv preprint arXiv:astro-ph/0306365},
year = {2009}
}
Comments
10 pages, 4 figures