Publications (43)
Simulation of argon response and light detection in the DarkSide-50 dual phase TPC
The DarkSide Collaboration, P. Agnes, I. F. M. Albuquerque +147
A Geant4-based Monte Carlo package named G4DS has been developed to simulate the response of DarkSide-50, an experiment operating since 2013 at LNGS, designed to detect WIMP intera…
The Electronics and Data Acquisition System for the DarkSide-50 Veto Detectors
P. Agnes, L. Agostino, I. F. M. Albuquerque +155
DarkSide-50 is a detector for dark matter candidates in the form of weakly interacting massive particles (WIMPs). It utilizes a liquid argon time projection chamber (LAr TPC) for t…
The veto system of the DarkSide-50 experiment
The DarkSide Collaboration, P. Agnes, L. Agostino +158
Nuclear recoil events produced by neutron scatters form one of the most important classes of background in WIMP direct detection experiments, as they may produce nuclear recoils th…
Two-neutrino double electron capture of Xe in the first LUX-ZEPLIN exposure
J. Aalbers, D. S. Akerib, A. K. Al Musalhi +202
The broad physics reach of the LUX-ZEPLIN (LZ) experiment covers rare phenomena beyond the direct detection of dark matter. We report precise measurements of the extremely rare dec…
A Next-Generation Liquid Xenon Observatory for Dark Matter and Neutrino Physics
J. Aalbers, K. Abe, V. Aerne +591
The nature of dark matter and properties of neutrinos are among the most pressing issues in contemporary particle physics. The dual-phase xenon time-projection chamber is the leadi…
Simulations of Events for the LUX-ZEPLIN (LZ) Dark Matter Experiment
ZEPLIN Collaboration, D. S. Akerib, C. W. Akerlof +194
The LUX-ZEPLIN dark matter search aims to achieve a sensitivity to the WIMP-nucleon spin-independent cross-section down to (1--2)\,pb at a WIMP mass of 40 GeV/…
The Electronics, Trigger and Data Acquisition System for the Liquid Argon Time Projection Chamber of the DarkSide-50 Search for Dark Matter
DarkSide Collaboration, P. Agnes, I. F. M. Albuquerque +177
The DarkSide-50 experiment at the Laboratori Nazionali del Gran Sasso is a search for dark matter using a dual phase time projection chamber with 50 kg of low radioactivity argon a…
Radon in the DRIFT-II directional dark matter TPC: emanation, detection and mitigation
J. B. R. Battat, J. Brack, E. Daw +26
Radon gas emanating from materials is of interest in environmental science and also a major concern in rare event non-accelerator particle physics experiments such as dark matter a…
Dark Matter Search Results from 4.2 Tonne-Years of Exposure of the LUX-ZEPLIN (LZ) Experiment
J. Aalbers, D. S. Akerib, A. K. Al Musalhi +215
We report results of a search for nuclear recoils induced by weakly interacting massive particle (WIMP) dark matter using the LUX-ZEPLIN (LZ) two-phase xenon time projection chambe…
Measurement of the ion fraction and mobility of Po produced in Rn decays in liquid argon
P. Agnes, I. F. M. Albuquerque, T. Alexander +163
We report measurements of the charged daughter fraction of Po as a result of the Rn alpha decay, and the mobility of Po ions, using radon-polonium coinc…
The LUX-ZEPLIN (LZ) Experiment
The LZ Collaboration, D. S. Akerib, C. W. Akerlof +379
We describe the design and assembly of the LUX-ZEPLIN experiment, a direct detection search for cosmic WIMP dark matter particles. The centerpiece of the experiment is a large liqu…
New constraints on cosmic ray-boosted dark matter from the LUX-ZEPLIN experiment
J. Aalbers, D. S. Akerib, A. K. Al Musalhi +201
While dual-phase xenon time projection chambers (TPCs) have driven the sensitivity towards weakly interacting massive particles (WIMPs) at the GeV/c^2 to TeV/c^2 mass scale, the sc…
First Constraints on WIMP-Nucleon Effective Field Theory Couplings in an Extended Energy Region From LUX-ZEPLIN
LZ Collaboration, J. Aalbers, D. S. Akerib +197
Following the first science results of the LUX-ZEPLIN (LZ) experiment, a dual-phase xenon time projection chamber operating from the Sanford Underground Research Facility in Lead,…
Effect of Low Electric Fields on Alpha Scintillation Light Yield in Liquid Argon
P. Agnes, I. F. M. Albuquerque, T. Alexander +158
Measurements were made of scintillation light yield of alpha particles from the Rn decay chain within the DarkSide-50 liquid argon time projection chamber. The light yield…
Measurements and models of enhanced recombination following inner-shell vacancies in liquid xenon
J. Aalbers, D. S. Akerib, A. K. Al Musalhi +215
Electron-capture decays of Xe and Xe, and double-electron-capture decays of Xe, are backgrounds in searches for weakly interacting massive particles (WIMPs)…
Probing the Scalar WIMP-Pion Coupling with the first LUX-ZEPLIN data
J. Aalbers, D. S. Akerib, A. K. Al Musalhi +200
Weakly interacting massive particles (WIMPs) may interact with a virtual pion that is exchanged between nucleons. This interaction channel is important to consider in models where…
A search for new physics in low-energy electron recoils from the first LZ exposure
The LZ Collaboration, J. Aalbers, D. S. Akerib +200
The LUX-ZEPLIN (LZ) experiment is a dark matter detector centered on a dual-phase xenon time projection chamber. We report searches for new physics appearing through few-keV-scale…
Constraints on Sub-GeV Dark Matter-Electron Scattering from the DarkSide-50 Experiment
The DarkSide Collaboration, P. Agnes, I. F. M. Albuquerque +193
We present new constraints on sub-GeV dark matter particles scattering off electrons in argon based on an analysis of ionization signal data from the DarkSide-50 detector.
Effective field theory interactions for liquid argon target in DarkSide-50 experiment
50 Collaboration, P. Agnes, I. F. M. Albuquerque +164
We reanalize data collected with the DarkSide-50 experiment and recently used to set limits on the spin-independent interaction rate of weakly interacting massive particles (WIMPs)…
DarkSide-50 532-day Dark Matter Search with Low-Radioactivity Argon
The DarkSide Collaboration, P. Agnes, I. F. M. Albuquerque +172
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 bl…
Cosmogenic production of Ar in the context of the LUX-ZEPLIN experiment
J. Aalbers, D. S. Akerib, A. K. Al Musalhi +205
We estimate the amount of Ar produced in natural xenon via cosmic ray-induced spallation, an inevitable consequence of the transportation and storage of xenon on the Earth's…
The LUX-ZEPLIN (LZ) radioactivity and cleanliness control programs
D. S. Akerib, C. W. Akerlof, D. Yu. Akimov +387
LUX-ZEPLIN (LZ) is a second-generation direct dark matter experiment with spin-independent WIMP-nucleon scattering sensitivity above cm for a WIMP mass…
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…
CALIS - a CALibration Insertion System for the DarkSide-50 dark matter search experiment
P. Agnes, I. F. M. Albuquerque, T. Alexander +162
This paper describes the design, fabrication, commissioning and use of a CALibration source Insertion System (CALIS) in the DarkSide-50 direct dark matter search experiment. CALIS…
Constraints On Covariant WIMP-Nucleon Effective Field Theory Interactions from the First Science Run of the LUX-ZEPLIN Experiment
J. Aalbers, D. S. Akerib, A. K. Al Musalhi +201
The first science run of the LUX-ZEPLIN (LZ) experiment, a dual-phase xenon time project chamber operating in the Sanford Underground Research Facility in South Dakota, USA, has re…
The Design, Implementation, and Performance of the LZ Calibration Systems
J. Aalbers, D. S. Akerib, A. K. Al Musalhi +200
LUX-ZEPLIN (LZ) is a tonne-scale experiment searching for direct dark matter interactions and other rare events. It is located at the Sanford Underground Research Facility (SURF) i…
Electroluminescence pulse shape and electron diffusion in liquid argon measured in a dual-phase TPC
P. Agnes, I. F. M. Albuquerque, T. Alexander +163
We report the measurement of the longitudinal diffusion constant in liquid argon with the DarkSide-50 dual-phase time projection chamber. The measurement is performed at drift elec…
First constraint for atmospheric millicharged particles with the LUX-ZEPLIN experiment
J. Aalbers, D. S. Akerib, A. K. Al Musalhi +215
We report on a search for millicharged particles (mCPs) produced in cosmic ray proton atmospheric interactions using data collected during the first science run of the LUX-ZEPLIN e…
First Dark Matter Search Results from the LUX-ZEPLIN (LZ) Experiment
J. Aalbers, D. S. Akerib, C. W. Akerlof +344
The LUX-ZEPLIN experiment is a dark matter detector centered on a dual-phase xenon time projection chamber operating at the Sanford Underground Research Facility in Lead, South Dak…
Low Threshold Results and Limits from the DRIFT Directional Dark Matter Detector
J. B. R. Battat, A. C. Ezeribe, J. -L. Gauvreau +18
We present results from a 54.7 live-day shielded run of the DRIFT-IId detector, the world's most sensitive, directional, dark matter detector. Several improvements were made relati…
Long-term study of backgrounds in the DRIFT-II directional dark matter experiment
J. Brack, E. Daw, A. Dorofeev +26
Low-pressure gas Time Projection Chambers being developed for directional dark matter searches offer a technology with strong particle identification capability combined with the p…
Enhancing the sensitivity of the LUX-ZEPLIN (LZ) dark matter experiment to low energy signals
D. S. Akerib, A. K. Al Musalhi, S. K. Alsum +184
Two-phase xenon detectors, such as that at the core of the forthcoming LZ dark matter experiment, use photomultiplier tubes to sense the primary (S1) and secondary (S2) scintillati…
First Results from the DarkSide-50 Dark Matter Experiment at Laboratori Nazionali del Gran Sasso
P. Agnes, T. Alexander, A. Alton +143
We report the first results of DarkSide-50, a direct search for dark matter operating in the underground Laboratori Nazionali del Gran Sasso (LNGS) and searching for the rare nucle…
Background Determination for the LUX-ZEPLIN (LZ) Dark Matter Experiment
J. Aalbers, D. S. Akerib, A. K. Al Musalhi +200
The LUX-ZEPLIN experiment recently reported limits on WIMP-nucleus interactions from its initial science run, down to cm for the spin-independent interactio…
Low-Mass Dark Matter Search with the DarkSide-50 Experiment
The DarkSide Collaboration, P. Agnes, I. F. M. Albuquerque +192
We present the results of a search for dark matter WIMPs in the mass range below 20 GeV/c^2 using a target of low-radioactivity argon. The data were obtained using the DarkSide-50…
Cryogenic Characterization of FBK RGB-HD SiPMs
C. E. Aalseth, F. Acerbi, P. Agnes +268
We report on the cryogenic characterization of Red Green Blue - High Density (RGB-HD) SiPMs developed at Fondazione Bruno Kessler (FBK) as part of the DarkSide program of dark matt…
Results from the first use of low radioactivity argon in a dark matter search
The DarkSide Collaboration, P. Agnes, L. Agostino +158
Liquid argon is a bright scintillator with potent particle identification properties, making it an attractive target for direct-detection dark matter searches. The DarkSide-50 dark…
Projected sensitivity of the LUX-ZEPLIN (LZ) experiment to the two-neutrino and neutrinoless double beta decays of Xe
The LUX-ZEPLIN, Collaboration, : +194
The projected sensitivity of the LUX-ZEPLIN (LZ) experiment to two-neutrino and neutrinoless double beta decay of Xe is presented. LZ is a 10-tonne xenon time projection ch…
Projected sensitivity of the LUX-ZEPLIN experiment to the decay of Xe
D. S. Akerib, C. W. Akerlof, A. Alqahtani +189
The LUX-ZEPLIN (LZ) experiment will enable a neutrinoless double beta decay search in parallel to the main science goal of discovering dark matter particle interactions. We report…
New constraints on ultraheavy dark matter from the LZ experiment
J. Aalbers, D. S. Akerib, A. K. Al Musalhi +196
Searches for dark matter with liquid xenon time projection chamber experiments have traditionally focused on the region of the parameter space that is characteristic of weakly inte…
The Data Acquisition System of the LZ Dark Matter Detector: FADR
J. Aalbers, D. S. Akerib, A. K. Al Musalhi +213
The Data Acquisition System (DAQ) for the LUX-ZEPLIN (LZ) dark matter detector is described. The signals from 745 PMTs, distributed across three subsystems, are sampled with 100-MH…
Projected sensitivities of the LUX-ZEPLIN (LZ) experiment to new physics via low-energy electron recoils
The LZ Collaboration, D. S. Akerib, A. K. Al Musalhi +194
LUX-ZEPLIN (LZ) is a dark matter detector expected to obtain world-leading sensitivity to weakly interacting massive particles (WIMPs) interacting via nuclear recoils with a ~7-ton…
First background-free limit from a directional dark matter experiment: results from a fully fiducialised DRIFT detector
J. B. R. Battat, J. Brack, E. Daw +28
The addition of O2 to gas mixtures in time projection chambers containing CS2 has recently been shown to produce multiple negative ions that travel at slightly different velocities…