Status of the DEAP-3600 experiment

DEAP-3600 is a single-phase liquid argon (LAr) dark matter detector, located 2 km underground at SNOLAB in Sudbury, Canada, which started taking data in 2016. The detector is sensitive to nuclear recoils induced by scattering of dark matter particles, which would cause emission of prompt scintillati...

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Bibliographic Details
Published in:arXiv.org 2022-03
Main Authors: Kuźniak, Marcin, the DEAP-3600 collaboration
Format: Article
Language:English
Subjects:
Argon
Dark matter
Sensitivity
Sensors
Upgrading
Weakly interacting massive particles
Online Access:Get full text
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Description
Summary:DEAP-3600 is a single-phase liquid argon (LAr) dark matter detector, located 2 km underground at SNOLAB in Sudbury, Canada, which started taking data in 2016. The detector is sensitive to nuclear recoils induced by scattering of dark matter particles, which would cause emission of prompt scintillation light. DEAP-3600 demonstrated excellent performance, holds the leading WIMP exclusion among LAr detectors, and published several physics results. The WIMP sensitivity of the detector is currently limited by backgrounds induced by alpha activity at the LAr inlet, in a shadowed region of detector. The ongoing hardware upgrade aims at fixing that limitation and, in consequence, at reaching the full WIMP sensitivity. This paper summarizes the latest results from DEAP-3600 and details of the upgrade.
ISSN:2331-8422
DOI:10.48550/arxiv.2111.03161