Journal
ASTROPARTICLE PHYSICS
Volume 62, Issue -, Pages 33-46Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.astropartphys.2014.07.009
Keywords
LUX; Dark matter; Radioactive background; Material screening; Simulation
Funding
- U.S. Department of Energy (DOE) [DE-FG02-08ER41549, DE-FG02-91ER40688, DE-FG02-95ER40917, DE-FG02-91ER40674, DE-NA0000979, DE-FG02-11ER41738, DE-SC0006605, DE-AC02-05CH11231, DE-AC52-07NA27344, DE-FG01-91ER40618]
- U.S. National Science Foundation [PHYS-0750671, PHY-0801536, PHY-1004661, PHY-1102470, PHY-1003660, PHY-1312561, PHY-1347449]
- 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 Tecnologia (FCT) [CERN/FP/123610/2011]
- UK Royal Society [IE120804]
- Imperial College London
- University College London
- Edinburgh University
- Science & Technology Facilities Council [ST/K502042/1]
- STFC [ST/K502042/1, ST/K003178/1, ST/M001415/1, ST/K003208/1, ST/K006436/1, ST/M003744/1, ST/M003205/1, ST/M003981/1, ST/K001426/1] Funding Source: UKRI
- Science and Technology Facilities Council [ST/M001415/1, ST/K003178/1, ST/M003981/1, ST/K006436/1, ST/K006428/1 DMUK, ST/K003208/1, ST/K001426/1, ST/M003205/1, ST/M003981/1 Lux Zepplin, ST/K003208/1 DMUK, ST/K001604/1 DMUK, ST/K502042/1, 1225234, ST/M003744/1] Funding Source: researchfish
- Fundação para a Ciência e a Tecnologia [CERN/FP/123610/2011] Funding Source: FCT
Ask authors/readers for more resources
The Large Underground Xenon (LUX) dark matter experiment aims to detect rare low-energy interactions from Weakly Interacting Massive Particles (WIMPs). The radiogenic backgrounds in the LUX detector have been measured and compared with Monte Carlo simulation. Measurements of LUX high-energy data have provided direct constraints on all background sources contributing to the background model. The expected background rate from the background model for the 85.3 day WIMP search run is (2.6 +/- 02(stat) +/- 0.4(sys)) x 10(-3) events keV(ee)(-1); kg(-1) day(-1) in a 118 kg fiducial volume. The observed background rate is (3.6 +/- 0.4(stat)) X 10(-3) events keV(ee)(-1) kg(-1) day(-1), consistent with model projections. The expectation for the radiogenic background in a subsequent one-year run is presented. (C) 2014 Elsevier B.V. All rights reserved.
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