E. E. Barillier
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View article: The XLZD Design Book: towards the next-generation liquid xenon observatory for dark matter and neutrino physics
The XLZD Design Book: towards the next-generation liquid xenon observatory for dark matter and neutrino physics Open
This report describes the experimental strategy and technologies for XLZD, the next-generation xenon observatory sensitive to dark matter and neutrino physics. In the baseline design, the detector will have an active liquid xenon target of…
View article: Study of few-electron backgrounds in the LUX-ZEPLIN detector
Study of few-electron backgrounds in the LUX-ZEPLIN detector Open
The LUX-ZEPLIN (LZ) experiment aims to detect rare interactions between dark matter particles and xenon. Although the detector is designed to be the most sensitive to GeV/$c^2$--TeV/$c^2$ Weakly Interacting Massive Particles (WIMPs), it is…
View article: Low-energy nuclear recoil calibration of the LUX-ZEPLIN experiment with a photoneutron source
Low-energy nuclear recoil calibration of the LUX-ZEPLIN experiment with a photoneutron source Open
The LZ experiment is a liquid xenon time-projection chamber (TPC) searching for evidence of particle dark matter interactions. In the simplest assumption of elastic scattering, many dark matter models predict an energy spectrum which rises…
View article: New Constraints on Cosmic Ray-Boosted Dark Matter from the LUX-ZEPLIN Experiment
New Constraints on Cosmic Ray-Boosted Dark Matter from the LUX-ZEPLIN Experiment Open
While dual-phase xenon time projection chambers have driven the sensitivity toward weakly interacting massive particles at the GeV/c2 to TeV/c2 mass scale, the scope for sub-GeV/c2 dark matter particles is hindered by a limited nuclear rec…
View article: Measurements and models of enhanced recombination following inner-shell vacancies in liquid xenon
Measurements and models of enhanced recombination following inner-shell vacancies in liquid xenon Open
Electron-capture decays of Xe 125 and Xe 127 , and double-electron-capture decays of Xe 124 , are backgrounds in searches for weakly interacting massive particles (WIMPs) conducted by dual-phase xenon ti…
View article: First Constraint on Atmospheric Millicharged Particles with the LUX-ZEPLIN Experiment
First Constraint on Atmospheric Millicharged Particles with the LUX-ZEPLIN Experiment Open
We report on a search for millicharged particles (mCPs) produced in cosmic ray atmospheric interactions using data collected during the first science run of the LUX-ZEPLIN experiment. The mCPs produced by two processes—meson decay and prot…
View article: Dark Matter Search Results from <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mn>4.2</mml:mn><mml:mtext> </mml:mtext><mml:mtext> </mml:mtext><mml:mtext>Tonne</mml:mtext><mml:mtext>−</mml:mtext><mml:mtext>Years</mml:mtext></mml:mrow></mml:math> of Exposure of the LUX-ZEPLIN (LZ) Experiment
Dark Matter Search Results from of Exposure of the LUX-ZEPLIN (LZ) Experiment Open
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 chamber. This analysis uses a total exposure of 4.2±0.1 tonne-yea…
View article: Neutrinoless double beta decay sensitivity of the XLZD rare event observatory
Neutrinoless double beta decay sensitivity of the XLZD rare event observatory Open
The XLZD collaboration is developing a two-phase xenon time projection chamber with an active mass of 60–80 t capable of probing the remaining weakly interacting massive particle-nucleon interaction parameter space down to the so-called ne…
View article: Two-neutrino double electron capture of <sup>124</sup>Xe in the first LUX-ZEPLIN exposure
Two-neutrino double electron capture of <sup>124</sup>Xe in the first LUX-ZEPLIN exposure Open
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 decay of 124 Xe through the process of two-neutrino double ele…
View article: First constraint for atmospheric millicharged particles with the LUX-ZEPLIN experiment
First constraint for atmospheric millicharged particles with the LUX-ZEPLIN experiment Open
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 experiment. The mCPs produced by two processes -- meson deca…
View article: Constraints on Covariant Dark-Matter–Nucleon Effective Field Theory Interactions from the First Science Run of the LUX-ZEPLIN Experiment
Constraints on Covariant Dark-Matter–Nucleon Effective Field Theory Interactions from the First Science Run of the LUX-ZEPLIN Experiment Open
The LUX-ZEPLIN (LZ) experiment is a dual-phase xenon time project chamber operating in the Sanford Underground Research Facility in South Dakota, USA. We report on the results of a relativistic extension to the nonrelativistic effective fi…
View article: Neutrinoless Double Beta Decay Sensitivity of the XLZD Rare Event Observatory
Neutrinoless Double Beta Decay Sensitivity of the XLZD Rare Event Observatory Open
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 space down to the so-called neutrino fog. In this work we …
View article: Dark Matter Search Results from 4.2 Tonne-Years of Exposure of the LUX-ZEPLIN (LZ) Experiment
Dark Matter Search Results from 4.2 Tonne-Years of Exposure of the LUX-ZEPLIN (LZ) Experiment Open
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 chamber. This analysis uses a total exposure of $4.2\pm0.1$ tonne…
View article: The XLZD Design Book: Towards the Next-Generation Liquid Xenon Observatory for Dark Matter and Neutrino Physics
The XLZD Design Book: Towards the Next-Generation Liquid Xenon Observatory for Dark Matter and Neutrino Physics Open
This report describes the experimental strategy and technologies for XLZD, the next-generation xenon observatory sensitive to dark matter and neutrino physics. In the baseline design, the detector will have an active liquid xenon target of…
View article: Two-neutrino double electron capture of $^{124}$Xe in the first LUX-ZEPLIN exposure
Two-neutrino double electron capture of $^{124}$Xe in the first LUX-ZEPLIN exposure Open
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 decay of $^{124}$Xe through the process of two-neutrino double…
View article: The design, implementation, and performance of the LZ calibration systems
The design, implementation, and performance of the LZ calibration systems Open
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) in Lead, South Dakota, USA. The core of the LZ detector is a…
View article: Probing the Scalar WIMP-Pion Coupling with the first LUX-ZEPLIN data
Probing the Scalar WIMP-Pion Coupling with the first LUX-ZEPLIN data Open
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 the spin-independent isoscalar channel is suppressed. Using…
View article: The Data Acquisition System of the LZ Dark Matter Detector: FADR
The Data Acquisition System of the LZ Dark Matter Detector: FADR Open
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-MHz 32-channel digitizers (DDC-32s). A basic waveform analysi…
View article: Constraints On Covariant WIMP-Nucleon Effective Field Theory Interactions from the First Science Run of the LUX-ZEPLIN Experiment
Constraints On Covariant WIMP-Nucleon Effective Field Theory Interactions from the First Science Run of the LUX-ZEPLIN Experiment Open
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 reported leading limits on spin-independent WIMP-nucleon inte…