期刊
PHYSICAL REVIEW LETTERS
卷 118, 期 25, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.118.251302
关键词
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资金
- U.S. Department of Energy (DOE) [DE-AC02-05CH11231, DE-AC05-06OR23100, DE-AC52-07NA27344, DE-FG01-91ER40618, DE-FG02-08ER41549, DE-FG02-11ER41738, DE-FG02-91ER40674, DE-FG02-91ER40688, DE-FG02-95ER40917, DE-NA0000979, DE-SC0006605, DE-SC0010010, DE-SC0015535]
- U.S. National Science Foundation [PHY-0750671, PHY-0801536, PHY-1003660, PHY-1004661, PHY-1102470, PHY-1312561, PHY-1347449, PHY-1505868, PHY-1636738]
- Research Corporation Grant [RA0350]
- Center for Ultra-low Background Experiments in the Dakotas (CUBED)
- South Dakota School of Mines and Technology (SDSMT)
- Fundacao para a Ciencia e a Tecnologia (FCT) [PTDC/FIS-NUC/1525/2014]
- Imperial College London, University College London
- Edinburgh University
- Science and Technology Facilities Council for PhD studentships [ST/K502042/1, ST/K502406/1, ST/M503538/1]
- U.S. Department of Energy (DOE) [DE-SC0015535] Funding Source: U.S. Department of Energy (DOE)
- Science and Technology Facilities Council [ST/K502406/1, ST/K502042/1, ST/M503538/1] Funding Source: researchfish
- Direct For Mathematical & Physical Scien
- Division Of Physics [1636738] Funding Source: National Science Foundation
- STFC [ST/M503538/1, ST/M003744/1, ST/K502406/1, ST/K502042/1, ST/K003208/1] Funding Source: UKRI
We present experimental constraints on the spin-dependentWIMP- nucleon elastic cross sections from the total 129.5 kg yr exposure acquired by the Large Underground Xenon experiment (LUX), operating at the Sanford Underground Research Facility in Lead, South Dakota (USA). A profile likelihood ratio analysis allows 90% C.L. upper limits to be set on the WIMP-neutron (WIMP-proton) cross section of sigma(n) = 1.6 x 10(-41) cm(2) (sigma(p) 5 x 10(-40) cm(2)) at 35 GeVc(-2), almost a sixfold improvement over the previous LUX spin-dependent results. The spin-dependent WIMP-neutron limit is the most sensitive constraint to date.
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