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Title: DarkSide-50 532-day dark matter search with low-radioactivity argon

Journal Article · · Physical Review D
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The DarkSide-50 direct-detection dark matter experiment is a dual-phase argon time projection chamber operating at Laboratori Nazionali del Gran Sasso. This paper reports on the blind analysis of a (16 660 ± 270) kg d exposure using a target of low-radioactivity argon extracted from underground sources. Additionally, we find no events in the dark matter selection box and set a 90% C.L. upper limit on the dark matter–nucleon spin-independent cross section of 1.14×10-44 cm2 (3.78 × 10-44 cm2, 3.43×10-43 cm2) for a WIMP mass of 100 GeV/c2 (1 TeV/c2, 10 TeV/c2).

Research Organization:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
Contributing Organization:
DarkSide Collaboration
Grant/Contract Number:
FG02-91ER40671; AC02-07CH11359; AC05-76RL01830
OSTI ID:
1502827
Alternate ID(s):
OSTI ID: 1482426
Report Number(s):
FERMILAB-PUB--18-053-AD-AE-CD-E; 1656631
Journal Information:
Physical Review D, Journal Name: Physical Review D Journal Issue: 10 Vol. 98; ISSN 2470-0010
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

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Dark matter astrometry at underground detectors with multiscatter events text January 2019
Dark matter astrometry at underground detectors with multiscatter events journal December 2019
Data-driven modeling of electron recoil nucleation in PICO C 3 F 8 bubble chambers journal October 2019
ANAIS-112 sensitivity in the search for dark matter annual modulation journal March 2019
Light Dark Matter Search with Ionization Signals in XENON1T text January 2019
Opening the energy window on direct dark matter detection journal December 2018
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First constraint on coherent elastic neutrino-nucleus scattering in argon journal December 2019
Constraints on Light Dark Matter Particles Interacting with Electrons from DAMIC at SNOLAB journal October 2019
Light Dark Matter Search with Ionization Signals in XENON1T journal December 2019
Search for dark matter with a 231-day exposure of liquid argon using DEAP-3600 at SNOLAB journal July 2019
(Not as) Big as a Barn: Upper Bounds on Dark Matter-Nucleus Cross Sections text January 2019
Geoneutrinos in large direct detection experiments journal May 2019
Measurement of the scintillation efficiency for nuclear recoils in liquid argon under electric fields up to 3     kV / cm journal August 2019
Not as big as a barn: Upper bounds on dark matter-nucleus cross sections journal September 2019
Electromagnetic backgrounds and potassium-42 activity in the DEAP-3600 dark matter detector journal October 2019
Presupernova neutrinos in large dark matter direct detection experiments journal February 2020
Light Dark Matter Search with Ionization Signals in XENON1T text January 2019
Opening the energy window on direct dark matter detection text January 2018