Journal
PHYSICAL REVIEW LETTERS
Volume 121, Issue 8, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.121.081307
Keywords
-
Categories
Funding
- U.S. National Science Foundation (NSF) [PHY-0919363, PHY-1004072, PHY-1004054, PHY-1242585, PHY-1314483, PHY-1314501, PHY-1314507, PHY-1352795, PHY-1622415, PHY-1211308, PHY-1455351]
- Italian Istituto Nazionale di Fisica Nucleare
- U.S. Department of Energy [DE-FG02-91ER40671, DE-AC02-07CH11359, DE-AC05-76RL01830]
- Russian Science Foundation [16-12-10369]
- Polish NCN [UMO-2014/15/B/ST2/02561]
- Foundation for Polish Science [Team2016-2/17]
- French Institut National de Physique Nucleaire et de Physique des Particules (IN2P3)
- UnivEarthS Labex program of Sorbonne Paris Cite [ANR-10-LABX-0023, ANR-11-IDEX-0005-02]
- Sao Paulo Research Foundation (FAPESP) [2016/09084-0]
Ask authors/readers for more resources
We present the results of a search for dark matter weakly interacting massive particles (WIMPs) in the mass range below 20 GeV/c(2) using a target of low-radioactivity argon with a 6786.0 kg d exposure. The data were obtained using the DarkSide-50 apparatus at Laboratori Nazionali del Gran Sasso. The analysis is based on the ionization signal, for which the DarkSide-50 time projection chamber is fully efficient at 0.1 keVee. The observed rate in the detector at 0.5 keVee is about 1.5 event/keVee/kg/d and is almost entirely accounted for by known background sources. We obtain a 90% C.L. exclusion limit above 1.8 GeV/c(2) for the spin-independent cross section of dark matter WIMPs on nucleons, extending the exclusion region for dark matter below previous limits in the range 1.8-6 GeV/c(2).
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available
Share Paper
