D. J. Auty
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View article: Measurement of Reactor Antineutrino Oscillation at <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mi>SNO</mml:mi><mml:mo>+</mml:mo></mml:mrow></mml:math>
Measurement of Reactor Antineutrino Oscillation at Open
SNO+ Collaboration reports its second spectral analysis of reactor antineutrino oscillation using 286 ton-yr of new data. The measured energies of reactor antineutrino candidates were fitted to obtain the second-most precise determination …
View article: Flow and thermal modelling of the argon volume in the DarkSide-20k TPC
Flow and thermal modelling of the argon volume in the DarkSide-20k TPC Open
The DarkSide-20k dark matter experiment, currently under construction at LNGS, features a dual-phase time projection chamber (TPC) with a ∼ 50 t argon target from an underground well. At this scale, it is crucial to optimise the argon flow…
View article: Benchmarking the design of the cryogenics system for the underground argon in DarkSide-20k
Benchmarking the design of the cryogenics system for the underground argon in DarkSide-20k Open
DarkSide-20k (DS-20k) is a dark matter detection experiment under construction at the Laboratori Nazionali del Gran Sasso (LNGS) in Italy. It utilises ∼ 100 t of low radioactivity argon from an underground source (UAr) in its inner detecto…
View article: Dark matter search in DEAP-3600: status and prospects
Dark matter search in DEAP-3600: status and prospects Open
DEAP-3600, with its 3.3 tonnes liquid argon target, is a dark matter direct detection experiment set at SNOLAB in Sudbury, Canada. Since 2019, the experiment has held the most stringent exclusion limit in argon for Weakly Interacting Massi…
View article: Data from: "DarkSide-20k sensitivity to light dark matter particles"
Data from: "DarkSide-20k sensitivity to light dark matter particles" Open
These files provide expected limits from the preprint of arXiv:2407.05813, "DarkSide-20k sensitivity to light dark matter particles" and are made available by the DarkSide-20k Collaboration.
View article: A new hybrid gadolinium nanoparticles-loaded polymeric material for neutron detection in rare event searches
A new hybrid gadolinium nanoparticles-loaded polymeric material for neutron detection in rare event searches Open
Experiments aimed at direct searches for WIMP dark matter require highly effective reduction of backgrounds and control of any residual radioactive contamination. In particular, neutrons interacting with atomic nuclei represent an importan…
View article: Precision measurement of the specific activity of $$^{39}$$Ar in atmospheric argon with the DEAP-3600 detector
Precision measurement of the specific activity of $$^{39}$$Ar in atmospheric argon with the DEAP-3600 detector Open
View article: Sensitivity projections for a dual-phase argon TPC optimized for light dark matter searches through the ionization channel
Sensitivity projections for a dual-phase argon TPC optimized for light dark matter searches through the ionization channel Open
Dark matter lighter than 10 GeV/c2 encompasses a promising range of candidates. A conceptual design for a new detector, DarkSide-LowMass, is presented, based on the DarkSide-50 detector and progress toward DarkSide-20k, optimized for a lo…
View article: Evidence of Antineutrinos from Distant Reactors Using Pure Water at <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mi>SNO</mml:mi><mml:mo>+</mml:mo></mml:mrow></mml:math>
Evidence of Antineutrinos from Distant Reactors Using Pure Water at Open
The SNO+ Collaboration reports the first evidence of reactor antineutrinos in a Cherenkov detector. The nearest nuclear reactors are located 240 km away in Ontario, Canada. This analysis uses events with energies lower than in any previous…
View article: Precision Measurement of the Specific Activity of $^{39}$Ar in Atmospheric Argon with the DEAP-3600 Detector
Precision Measurement of the Specific Activity of $^{39}$Ar in Atmospheric Argon with the DEAP-3600 Detector Open
The specific activity of the beta decay of $^{39}$Ar in atmospheric argon is measured using the DEAP-3600 detector. DEAP-3600, located 2 km underground at SNOLAB, uses a total of (3269 $\pm$ 24) kg of liquid argon distilled from the atmosp…
View article: Erratum: Constraints on dark matter-nucleon effective couplings in the presence of kinematically distinct halo substructures using the DEAP-3600 detector [Phys. Rev. D <b>102</b>, 082001 (2020)]
Erratum: Constraints on dark matter-nucleon effective couplings in the presence of kinematically distinct halo substructures using the DEAP-3600 detector [Phys. Rev. D <b>102</b>, 082001 (2020)] Open
Received 24 December 2021DOI:https://doi.org/10.1103/PhysRevD.105.029901© 2022 American Physical SocietyPhysics Subject Headings (PhySH)Research AreasCosmologyDark matterParticle astrophysicsParticle dark matterPhysical SystemsGalactic hal…
View article: First Direct Detection Constraints on Planck-Scale Mass Dark Matter with Multiple-Scatter Signatures Using the DEAP-3600 Detector
First Direct Detection Constraints on Planck-Scale Mass Dark Matter with Multiple-Scatter Signatures Using the DEAP-3600 Detector Open
Dark matter with Planck-scale mass (≃10^{19} GeV/c^{2}) arises in well-motivated theories and could be produced by several cosmological mechanisms. A search for multiscatter signals from supermassive dark matter was performed with a blind …
View article: Optical calibration of the SNO+ detector in the water phase with deployed sources
Optical calibration of the SNO+ detector in the water phase with deployed sources Open
SNO+ is a large-scale liquid scintillator experiment with the primary goal of\nsearching for neutrinoless double beta decay, and is located approximately 2 km\nunderground in SNOLAB, Sudbury, Canada. The detector acquired data for two\nyea…
View article: Pulse-shape discrimination against low-energy Ar-39 beta decays in liquid argon with 4.5 tonne-years of DEAP-3600 data
Pulse-shape discrimination against low-energy Ar-39 beta decays in liquid argon with 4.5 tonne-years of DEAP-3600 data Open
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 $$^{39}\text{ Ar }$$ beta decays and is suppressed using pulse-sh…
View article: Can rising CO2 concentrations in the atmosphere mitigate the impact of drought years on tree growth?
Can rising CO2 concentrations in the atmosphere mitigate the impact of drought years on tree growth? Open
International audience
View article: Measurement of neutron-proton capture in the <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mi>SNO</mml:mi><mml:mo>+</mml:mo></mml:math> water phase
Measurement of neutron-proton capture in the water phase Open
The SNO+ experiment collected data as a low-threshold water Cherenkov detector from September 2017 to July 2019. Measurements of the 2.2-MeV γ 's produced by neutron capture on hydrogen were made using an Am-Be calibration source, for whic…
View article: GEANT4 models of HPGe detectors for radioassay
GEANT4 models of HPGe detectors for radioassay Open
View article: Search for invisible modes of nucleon decay in water with the SNO+ detector
Search for invisible modes of nucleon decay in water with the SNO+ detector Open
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 water phase of $\\mathrm{SNO}+$. However, such decays within the …
View article: Measurement of the <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mmultiscripts><mml:mrow><mml:mi mathvariant="normal">B</mml:mi></mml:mrow><mml:mprescripts/><mml:none/><mml:mrow><mml:mn>8</mml:mn></mml:mrow></mml:mmultiscripts></mml:mrow></mml:math> solar neutrino flux in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mi>SNO</mml:mi><mml:mo>+</mml:mo></mml:mrow></mml:math> with very low backgrounds
Measurement of the solar neutrino flux in with very low backgrounds Open
A measurement of the B8 solar neutrino flux has been made using a 69.2 kt-day dataset acquired with the SNO+ detector during its water commissioning phase. At energies above 6 MeV the dataset is an extremely pure sample of solar neutrino e…
View article: Neutron detection in the SNO+ water phase
Neutron detection in the SNO+ water phase Open
SNO+ is a multipurpose neutrino experiment located approximately 2 km underground in SNOLAB, Sudbury, Canada. The detector started taking physics data in May 2017 and is currently completing its first phase, as a pure water Cherenkov detec…
View article: Trace radioactive impurities in final construction materials for EXO-200
Trace radioactive impurities in final construction materials for EXO-200 Open
View article: Search for<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mn>2</mml:mn><mml:mi>ν</mml:mi><mml:mi>β</mml:mi><mml:mi>β</mml:mi></mml:mrow></mml:math>decay of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi>Xe</mml:mi><mml:mprescripts/><mml:none/><mml:mn>136</mml:mn></mml:mmultiscripts></mml:math>to the<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msubsup><mml:mn>0</mml:mn><mml:mn>1</mml:mn><mml:mo>+</mml:mo></mml:msubsup></mml:math>excited state of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi>Ba</mml:mi><mml:mprescripts/><mml:none/><mml:mn>136</mml:mn></mml:mmultiscripts></mml:math>with the EXO-200 liquid xenon detector
Search fordecay ofto theexcited state ofwith the EXO-200 liquid xenon detector Open
EXO-200 is a single phase liquid xenon detector designed to search for neutrinoless ββ decay of ^(136)Xe to the ground state of ^(136)Ba. We report here on a search for the two-neutrino ββ decay of 136Xe to the first 0+ excited
\nstate, 0^…
View article: Current Status and Future Prospects of the SNO+ Experiment
Current Status and Future Prospects of the SNO+ Experiment Open
SNO+ is a large liquid scintillator-based experiment located 2 km underground at SNOLAB, Sudbury, Canada. It reuses the Sudbury Neutrino Observatory detector, consisting of a 12 m diameter acrylic vessel which will be filled with about 780…
View article: Measurements of the ion fraction and mobility of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mi>α</mml:mi><mml:mtext>−</mml:mtext></mml:mrow></mml:math>and<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mi>β</mml:mi></mml:mrow></mml:math>-decay products in liquid xenon using the EXO-200 detector
Measurements of the ion fraction and mobility ofand-decay products in liquid xenon using the EXO-200 detector Open
Alpha decays in the EXO-200 detector are used to measure the fraction of\ncharged $^{218}\\mathrm{Po}$ and $^{214}\\mathrm{Bi}$ daughters created from\nalpha and beta decays, respectively. $^{222}\\mathrm{Rn}$ alpha decays in liquid\nxenon…
View article: Investigation of radioactivity-induced backgrounds in EXO-200
Investigation of radioactivity-induced backgrounds in EXO-200 Open
The search for neutrinoless double-beta decay ( 0 ν β β ) requires extremely low background and a good understanding of their sources and their influence on the rate in the region of parameter space relevant to the 0 ν β β signal. We repor…
View article: Results from EXO–200
Results from EXO–200 Open
EXO–200 is a double-beta decay experiment that measures the half-life of the decay of 136Xe. This article describes the result reported by EXO–200 in the summer 2012, with an exposure of 32.5 kgyr, saw no signal for the 0νββ decay. This se…
View article: Spectroscopy of Ba and<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msup><mml:mrow><mml:mi>Ba</mml:mi></mml:mrow><mml:mo>+</mml:mo></mml:msup></mml:math>deposits in solid xenon for barium tagging in nEXO
Spectroscopy of Ba anddeposits in solid xenon for barium tagging in nEXO Open
Progress on a method of barium tagging for the nEXO double beta decay experiment is reported. Absorption and emission spectra for deposits of barium atoms and ions in solid xenon matrices are presented. Excitation spectra for prominent emi…
View article: An RF-only ion-funnel for extraction from high-pressure gases
An RF-only ion-funnel for extraction from high-pressure gases Open