Publications (24)
First evidence of neutrino absorption on argon using B solar neutrinos in DEAP-3600
P. Adhikari, P. -A. Amaudruz, D. J. Auty +113
We report experimental evidence for electron neutrino charged-current interactions (neutrino absorption, CC ) from B solar neutrinos on Ar using an exposure of (…
DarkSide-20k: A 20 Tonne Two-Phase LAr TPC for Direct Dark Matter Detection at LNGS
C. E. Aalseth, F. Acerbi, P. Agnes +282
Building on the successful experience in operating the DarkSide-50 detector, the DarkSide Collaboration is going to construct DarkSide-20k, a direct WIMP search detector using a tw…
Position Reconstruction in the DEAP-3600 Dark Matter Search Experiment
The DEAP Collaboration, P. Adhikari, R. Ajaj +162
In the DEAP-3600 dark matter search experiment, precise reconstruction of the positions of scattering events in liquid argon is key for background rejection and defining a fiducial…
Dark Matter Search with the DEAP-3600 Detector using the Profile Likelihood Ratio Method
DEAP Collaboration, P. Adhikari, R. Ajaj +122
We present here a search for WIMP dark matter using 790.8 live-days of data collected with 3269 kg of liquid argon (1266 kg fiducial) by the DEAP-3600 detector at SNOLAB, using the…
Design and Construction of the DEAP-3600 Dark Matter Detector
P. -A. Amaudruz, M. Baldwin, M. Batygov +106
The Dark matter Experiment using Argon Pulse-shape discrimination (DEAP) has been designed for a direct detection search for particle dark matter using a single-phase liquid argon…
Relative Measurement and Extrapolation of the Scintillation Quenching Factor of -Particles in Liquid Argon using DEAP-3600 Data
DEAP Collaboration, P. Adhikari, M. AlpÃzar-Venegas +101
The knowledge of scintillation quenching of -particles plays a paramount role in understanding -induced backgrounds and improving the sensitivity of liquid argon-based dire…
Search for dark matter with a 231-day exposure of liquid argon using DEAP-3600 at SNOLAB
R. Ajaj, P. -A. Amaudruz, G. R. Araujo +99
DEAP-3600 is a single-phase liquid argon (LAr) direct-detection dark matter experiment, operating 2 km underground at SNOLAB (Sudbury, Canada). The detector consists of 3279 kg of…
Direct Measurement of the Ar Half-life from 3.4 Years of Data with the DEAP-3600 Detector
DEAP Collaboration, P. Adhikari, R. Ajaj +114
The half-life of Ar is measured using the DEAP-3600 detector located 2 km underground at SNOLAB. Between 2016 and 2020, DEAP-3600 used a target mass of (3269 24) kg of…
In-situ characterization of the Hamamatsu R5912-HQE photomultiplier tubes used in the DEAP-3600 experiment
DEAP Collaboration, P. -A. Amaudruz, M. Batygov +99
The Hamamatsu R5912-HQE photomultiplier-tube (PMT) is a novel high-quantum efficiency PMT. It is currently used in the DEAP-3600 dark matter detector and is of significant interest…
Design and construction of a new detector to measure ultra-low radioactive-isotope contamination of argon
The DarkSide Collaboration, C. E. Aalseth, S. Abdelhakim +328
Large liquid argon detectors offer one of the best avenues for the detection of galactic weakly interacting massive particles (WIMPs) via their scattering on atomic nuclei. The liq…
Electromagnetic Backgrounds and Potassium-42 Activity in the DEAP-3600 Dark Matter Detector
R. Ajaj, G. R. Araujo, M. Batygov +88
The DEAP-3600 experiment is searching for WIMP dark matter with a 3.3 tonne single phase liquid argon (LAr) target, located 2.1 km underground at SNOLAB. The experimental signature…
Constraints on dark matter-nucleon effective couplings in the presence of kinematically distinct halo substructures using the DEAP-3600 detector
P. Adhikari, R. Ajaj, C. E. Bina +81
DEAP-3600 is a single-phase liquid argon detector aiming to directly detect Weakly Interacting Massive Particles (WIMPs), located at SNOLAB (Sudbury, Canada). After analyzing data…
First direct detection constraints on Planck-scale mass dark matter with multiple-scatter signatures using the DEAP-3600 detector
P. Adhikari, R. Ajaj, M. AlpÃzar-Venegas +94
Dark matter particles with Planck-scale mass () arise in well-motivated theories and could be produced by several cosmological mechanisms. Using a blin…
Precision Measurement of the Specific Activity of Ar in Atmospheric Argon with the DEAP-3600 Detector
P. Adhikari, R. Ajaj, M. AlpÃzar-Venegas +147
The specific activity of the beta decay of Ar in atmospheric argon is measured using the DEAP-3600 detector. DEAP-3600, located 2 km underground at SNOLAB, uses a total of (…
Optical calibration of the SNO+ detector in the water phase with deployed sources
SNO+ Collaboration, :, M. R. Anderson +120
SNO+ is a large-scale liquid scintillator experiment with the primary goal of searching for neutrinoless double beta decay, and is located approximately 2 km underground in SNOLAB,…
The SNO+ Experiment
SNO+ Collaboration, :, V. Albanese +251
The SNO+ experiment is located 2 km underground at SNOLAB in Sudbury, Canada. A low background search for neutrinoless double beta () decay will be conducted using 780 ton…
The liquid-argon scintillation pulseshape in DEAP-3600
The DEAP collaboration, P. Adhikari, R. Ajaj +98
DEAP-3600 is a liquid-argon scintillation detector looking for dark matter. Scintillation events in the liquid argon (LAr) are registered by 255 photomultiplier tubes (PMTs), and p…
Current Status and Future Prospects of the SNO+ Experiment
SNO+ Collaboration, :, S. Andringa +155
SNO+ is a large liquid scintillator-based experiment located 2km underground at SNOLAB, Sudbury, Canada. It reuses the Sudbury Neutrino Observatory detector, consisting of a 12m di…
Measurement of reactor antineutrino oscillation at SNO+
SNO+ Collaboration, :, M. Abreu +298
The SNO+ collaboration reports its second spectral analysis of reactor antineutrino oscillation using 286 tonne-years of new data. The measured energies of reactor antineutrino can…
Development, characterisation, and deployment of the SNO+ liquid scintillator
SNO+ Collaboration, :, M. R. Anderson +223
A liquid scintillator consisting of linear alkylbenzene as the solvent and 2,5-diphenyloxazole as the fluor was developed for the SNO+ experiment. This mixture was chosen as it is…
Search for invisible modes of nucleon decay in water with the SNO+ detector
SNO+ Collaboration, :, M. Anderson +195
This paper reports results from a search for nucleon decay through 'invisible' modes, where no visible energy is directly deposited during the decay itself, during the initial wate…
First results from the DEAP-3600 dark matter search with argon at SNOLAB
3600 Collaboration, P. -A. Amaudruz, M. Baldwin +102
This paper reports the first results of a direct dark matter search with the DEAP-3600 single-phase liquid argon (LAr) detector. The experiment was performed 2 km underground at SN…
Pulseshape discrimination against low-energy Ar-39 beta decays in liquid argon with 4.5 tonne-years of DEAP-3600 data
The DEAP Collaboration, P. Adhikari, R. Ajaj +126
The DEAP-3600 detector searches for the scintillation signal from dark matter particles scattering on a 3.3 tonne liquid argon target. The largest background comes from Ar b…
SiPM-matrix readout of two-phase argon detectors using electroluminescence in the visible and near infrared range
The DarkSide collaboration, C. E. Aalseth, S. Abdelhakim +312
Proportional electroluminescence (EL) in noble gases is used in two-phase detectors for dark matter searches to record (in the gas phase) the ionization signal induced by particle…