Journal
PHYSICAL REVIEW D
Volume 95, Issue 3, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.95.032006
Keywords
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Funding
- Alfred P. Sloan Foundation
- WIPAC
- Wisconsin Alumni Research Foundation
- Yale University
- Natural Sciences and Engineering Research Council of Canada
- Fermilab [DE-AC02-07CH11359]
- United States Department of Energy [DE-AC02-07CH11359]
- DOE/NNSA [DE-FC52-08NA28752]
- NSF [PLR-1046816, PHY-1151795, PHY-1457995, DGE-1256259]
- STFC [ST/K001337/1, ST/M002667/1, ST/L003090/1, ST/M00144X/1, PP/E000371/1, ST/K000799/1, ST/H000917/2, ST/R000042/1, ST/K00302X/1, ST/N000277/1, ST/P003788/1, ST/L006545/1, ST/H000917/1] Funding Source: UKRI
- Science and Technology Facilities Council [ST/K001337/1, ST/L006545/1, ST/H000917/2, ST/K001337/1 ATLAS Upgrades, ST/L003090/1, PP/E000371/1, ST/M002667/1, ST/N000277/1, ST/K001337/1 DMUK, ST/K001337/1 T2K, ST/K00302X/1, ST/P003788/1, ST/K001337/1 MICE, ST/K001337/1 MICE/UKNF, ST/H000917/1, ST/K001337/1 ATLAS, ST/K000799/1, ST/K001337/1 SNO+, ST/M00144X/1] Funding Source: researchfish
- Direct For Mathematical & Physical Scien
- Division Of Physics [1457995] Funding Source: National Science Foundation
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We present the first search for a dark matter annual modulation signal in the Southern Hemisphere conducted with NaI(Tl) detectors, performed by the DM-Ice17 experiment. Nuclear recoils from dark matter interactions are expected to yield an annually modulated signal independent of location within the Earth's hemispheres. DM-Ice17, the first step in the DM-Ice experimental program, consists of 17 kg of NaI (Tl) located at the South Pole under 2200 m.w.e. overburden of Antarctic glacial ice. Taken over 3.6 years for a total exposure of 60.8 kg yr, DM-Ice17 data are consistent with no modulation in the energy range of 4-20 keV, providing the strongest limits on weakly interacting massive particle dark matter from a direct detection experiment located in the Southern Hemisphere. The successful deployment and stable long-term operation of DM-Ice17 establishes the South Pole ice as a viable location for future dark matter searches and in particular for a high-sensitivity NaI(Tl) dark matter experiment to directly test the DAMA/LIBRA claim of the observation of dark matter.
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