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Operating a large-diameter dual-phase liquid xenon TPC in the unshielded PANCAKE facility
Julia Müller, Jaron Grigat, Robin Glade-Beucke +7
Future liquid-xenon (LXe) based observatories for rare processes, such as XLZD, require testing of large components and sub-assemblies in cryogenic liquid or gaseous xenon environm…
Development & Characterization of Electrodes for large-scale Xenon Time Projection Chambers
A. Elykov, S. Vetter, V. H. S. Wu +16
Dual-phase liquid xenon time projection chambers are the core detector elements of many experiments that conduct searches for Dark Matter and rare events, as well as in neutrino an…
Radon Removal in XENONnT down to the Solar Neutrino Level
E. Aprile, J. Aalbers, K. Abe +169
The XENONnT experiment has achieved an exceptionally low Rn activity concentration within its inner 5.9tonne liquid xenon detector of (0.900.01stat.$\…
The neutron veto of the XENONnT experiment: Results with demineralized water
XENON Collaboration, E. Aprile, J. Aalbers +167
Radiogenic neutrons emitted by detector materials are one of the most challenging backgrounds for the direct search of dark matter in the form of weakly interacting massive particl…
Low-Energy Nuclear Recoil Calibration of XENONnT with a YBe Photoneutron Source
XENON Collaboration, E. Aprile, J. Aalbers +169
Characterizing low-energy, keV-range nuclear recoils near the detector threshold is one of the major challenges for large direct dark matter detectors. To that end, we have success…
Neutrinoless Double Beta Decay Sensitivity of the XLZD Rare Event Observatory
XLZD Collaboration, J. Aalbers, K. Abe +441
The XLZD collaboration is developing a two-phase xenon time projection chamber with an active mass of 60 to 80 t capable of probing the remaining WIMP-nucleon interaction parameter…
Model-independent searches of new physics in DARWIN with a semi-supervised deep learning pipeline
J. Aalbers, K. Abe, M. Adrover +231
We present a novel deep learning pipeline to perform a model-independent, likelihood-free search for anomalous (i.e., non-background) events in the proposed next generation multi-t…
Proportional scintillation in liquid xenon: demonstration in a single-phase liquid-only time projection chamber
Florian Tönnies, Adam Brown, Baris Kiyim +5
The largest direct dark matter search experiments to date employ dual-phase time projection chambers (TPCs) with liquid noble gas targets. These detect both the primary photons gen…
The XENONnT Dark Matter Experiment
XENON Collaboration, E. Aprile, J. Aalbers +192
The multi-staged XENON program at INFN Laboratori Nazionali del Gran Sasso aims to detect dark matter with two-phase liquid xenon time projection chambers of increasing size and se…
PANCAKE: a large-diameter cryogenic test platform with a flat floor for next generation multi-tonne liquid xenon detectors
Adam Brown, Horst Fischer, Robin Glade-Beucke +11
The PANCAKE facility is the world's largest liquid xenon test platform. Inside its cryostat with an internal diameter of 2.75 m, components for the next generation of liquid xenon…
A High-Sensitivity Radon Emanation Detector System for Future Low-Background Experiments
D. Wiebe, S. Lindemann, M. Schumann
Radioactive radon atoms originating from the long-lived primordial and decay chains are constantly emanated from the surfaces of most materia…
Cosmogenic background simulations for the DARWIN observatory at different underground locations
M. Adrover, L. Althueser, B. Andrieu +180
Xenon dual-phase time projections chambers (TPCs) have proven to be a successful technology in studying physical phenomena that require low-background conditions. With 40t of liqui…
The Triggerless Data Acquisition System of the XENONnT Experiment
E. Aprile, J. Aalbers, K. Abe +162
The XENONnT detector uses the latest and largest liquid xenon-based time projection chamber (TPC) operated by the XENON Collaboration, aimed at detecting Weakly Interacting Massive…
Low-energy Calibration of XENON1T with an Internal Ar Source
E. Aprile, K. Abe, F. Agostini +161
A low-energy electronic recoil calibration of XENON1T, a dual-phase xenon time projection chamber, with an internal Ar source was performed. This calibration source features…
Reduction of Rn-induced Backgrounds in a Hermetic Dual-Phase Xenon Time Projection Chamber
Julia Dierle, Adam Brown, Horst Fischer +6
The continuous emanation of Rn from detector surfaces causes the dominant background in current liquid xenon time projection chambers (TPCs) searching for dark matter. A si…
The XeBRA platform for liquid xenon time projection chamber development
Daniel Baur, Alexander Bismark, Adam Brown +13
XeBRA is a flexible cryogenic platform designed to perform research and development for liquid xenon detectors searching for rare events. Its extra-large outer cryostat makes it po…
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…
GeMSE: a Low-Background Facility for Gamma-Spectrometry at Moderate Rock Overburden
Diego Ramírez García, Daniel Baur, Jaron Grigat +6
The GeMSE (Germanium Material and meteorite Screening Experiment) facility operates a low-background HPGe crystal in an underground laboratory with a moderate rock overburden of 62…
Application and modeling of an online distillation method to reduce krypton and argon in XENON1T
E. Aprile, K. Abe, F. Agostini +151
A novel online distillation technique was developed for the XENON1T dark matter experiment to reduce intrinsic background components more volatile than xenon, such as krypton or ar…
Material radiopurity control in the XENONnT experiment
E. Aprile, K. Abe, F. Agostini +150
The selection of low-radioactive construction materials is of the utmost importance for rare-event searches and thus critical to the XENONnT experiment. Results of an extensive rad…
Projected WIMP Sensitivity of the XENONnT Dark Matter Experiment
The XENON collaboration, E. Aprile, J. Aalbers +137
XENONnT is a dark matter direct detection experiment, utilizing 5.9 t of instrumented liquid xenon, located at the INFN Laboratori Nazionali del Gran Sasso. In this work, we predic…
VUV Transmission of PTFE for Xenon-based Particle Detectors
Lutz Althüser, Sebastian Lindemann, Michael Murra +3
Liquid xenon (LXe) based detectors for rare event searches in particle and astroparticle physics are optimized for high xenon scintillation light collection and low background rate…
Solar Neutrino Detection Sensitivity in DARWIN via Electron Scattering
J. Aalbers, F. Agostini, S. E. M. Ahmed Maouloud +163
We detail the sensitivity of the liquid xenon (LXe) DARWIN observatory to solar neutrinos via elastic electron scattering. We find that DARWIN will have the potential to measure th…
Sensitivity of the DARWIN observatory to the neutrinoless double beta decay of Xe
F. Agostini, S. E. M. Ahmed Maouloud, L. Althueser +92
The DARWIN observatory is a proposed next-generation experiment to search for particle dark matter and for the neutrinoless double beta decay of Xe. Out of its 50t tota…