Abstract
SuperCDMS is an experiment designed to directly detect weakly interacting massive particles (WIMPs), a favored candidate for dark matter ubiquitous in the Universe. In this Letter, we present WIMP-search results using a calorimetric technique we call CDMSlite, which relies on voltage-assisted Luke-Neganov amplification of the ionization energy deposited by particle interactions. The data were collected with a single 0.6 kg germanium detector running for ten live days at the Soudan Underground Laboratory. A low energy threshold of 170 eVee (electron equivalent) was obtained, which allows us to constrain new WIMP-nucleon spin-independent parameter space for WIMP masses below 6 GeV/c2.
Original language | English (US) |
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Article number | 041302 |
Journal | Physical review letters |
Volume | 112 |
Issue number | 4 |
DOIs | |
State | Published - Jan 27 2014 |
ASJC Scopus subject areas
- Physics and Astronomy(all)