First data from DM-Ice17
Abstract
We report the first analysis of background data from DM-Ice17, a direct-detection dark matter experiment consisting of 17 kg of NaI(Tl) target material. It was codeployed with IceCube 2457 m deep in the South Pole glacial ice in December 2010 and is the first such detector operating in the Southern Hemisphere. The background rate in the 6.5 - 8.0 keVee region is measured to be 7.9 +/- 0.4 counts/day/keV/kg. This is consistent with the expected background from the detector assemblies with negligible contributions from the surrounding ice. The successful deployment and operation of DM-Ice17 establishes the South Pole ice as a viable location for future underground, low-background experiments in the Southern Hemisphere. The detector assembly and deployment are described here, as well as the analysis of the DM-Ice17 backgrounds based on data from the first two years of operation after commissioning, July 2011 - June 2013.
Keywords
Cite
@article{arxiv.1401.4804,
title = {First data from DM-Ice17},
author = {Ice Collaboration and J. Cherwinka and D. Grant and F. Halzen and K. M. Heeger and L. Hsu and A. J. F. Hubbard and A. Karle and M. Kauer and V. A. Kudryavtsev and C. Macdonald and R. H. Maruyama and S. Paling and W. Pettus and Z. P. Pierpoint and B. N. Reilly and M. Robinson and P. Sandstrom and N. J. C. Spooner and S. Telfer and L. Yang},
journal= {arXiv preprint arXiv:1401.4804},
year = {2014}
}
Comments
matches PRD published version