Explanipedia

New Constraints on Cosmic Ray-Boosted Dark Matter from the LUX-ZEPLIN Experiment Open

NULL AUTHOR_ID, D. S. Akerib, A. K. Al Musalhi, F. Alder, C. S. Amarasinghe , et al. · 2025

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…

Measurements and models of enhanced recombination following inner-shell vacancies in liquid xenon Open

NULL AUTHOR_ID, D. S. Akerib, A. K. Al Musalhi, F. Alder, C. S. Amarasinghe , et al. · 2025

Electron-capture decays of Xe125 and Xe127, and double-electron-capture decays of Xe124, are backgrounds in searches for weakly interacting massive particles (WIMPs…

First Constraint on Atmospheric Millicharged Particles with the LUX-ZEPLIN Experiment Open

J. Aalbers, D. S. Akerib, A. K. Al Musalhi, F. Alder, C. S. Amarasinghe , et al. · 2025

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…

Dark Matter Search Results from of Exposure of the LUX-ZEPLIN (LZ) Experiment Open

NULL AUTHOR_ID, D. S. Akerib, A. K. Al Musalhi, F. Alder, C. S. Amarasinghe , et al. · 2025

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…

The MAJORANA DEMONSTRATOR experiment's construction, commissioning, and performance Open

N. Abgrall, E. Aguayo, I. J. Arnquist, F. T. Avignone, A. S. Barabash , et al. · 2025

Background: The MAJORANA DEMONSTRATOR , a modular array of isotopically enriched high-purity germanium (HPGe) detectors, was constructed to demonstrate backgrounds low enough to justify building a tonne-scale experiment to search for the n…

The Real-Time Data Workflow of The LUX-ZEPLIN Dark Matter Experiment at NERSC Open

M. Arthurs, Tyler Anderson, K. Beattie, M. Buuck, A. Fan , et al. · 2025

LUX-ZEPLIN (LZ) is a dark matter direct detection experiment using a dual-phase xenon time projection chamber with a 7-tonne active volume. The success of the LZ experiment relies on the robust design of its hardware and software infrastru…

Two-neutrino double electron capture of <sup>124</sup>Xe in the first LUX-ZEPLIN exposure Open

J. Aalbers, D. S. Akerib, A. K. Al Musalhi, F. Alder, C. S. Amarasinghe , et al. · 2024

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…

Constraints on Covariant Dark-Matter–Nucleon Effective Field Theory Interactions from the First Science Run of the LUX-ZEPLIN Experiment Open

J. Aalbers, D. S. Akerib, A. K. Al Musalhi, F. Alder, C. S. Amarasinghe , et al. · 2024

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…

Dark Matter Search Results from 4.2 Tonne-Years of Exposure of the LUX-ZEPLIN (LZ) Experiment Open

J. Aalbers, D. S. Akerib, A. K. Al Musalhi, F. Alder, C. S. Amarasinghe , et al. · 2024

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…

Probing the scalar WIMP-pion coupling with the first LUX-ZEPLIN data Open

J. Aalbers, D. S. Akerib, A. K. Al Musalhi, F. Alder, C. S. Amarasinghe , et al. · 2024

Exotic Dark Matter Search with the Majorana Demonstrator Open

I. J. Arnquist, F. T. Avignone, A S Barabash, C. J. Barton, K. H. Bhimani , et al. · 2024

With excellent energy resolution and ultralow-level radiogenic backgrounds, the high-purity germanium detectors in the MAJORANA DEMONSTRATOR enable searches for several classes of exotic dark matter (DM) models. In this work, we report new…

Final Result of the Majorana Demonstrator's Search for Neutrinoless Double-𝛽 Decay in Ge76 Open

I. J. Arnquist, F. T. Avignone, A.S. Barabash, C. J. Barton, Paul Barton , et al. · 2024

The MAJORANA DEMONSTRATOR searched for neutrinoless double-β decay (0νββ) of 76Ge using modular arrays of high-purity Ge detectors operated in vacuum cryostats in a low-background shield. The arrays operated with up to 40.4 kg of detectors…

New constraints on ultraheavy dark matter from the LZ experiment Open

J. Aalbers, D. S. Akerib, A. K. Al Musalhi, C. S. Amarasinghe, A. Ames , et al. · 2024

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 interacting massive particles, ranging from a few GeV/c2 to a f…

First constraints on WIMP-nucleon effective field theory couplings in an extended energy region from LUX-ZEPLIN Open

J. Aalbers, D. S. Akerib, A. K. Al Musalhi, F. Alder, C. S. Amarasinghe , et al. · 2024

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, South Dakota, USA, we report the initial limits on a model-…

Constraints On Covariant WIMP-Nucleon Effective Field Theory Interactions from the First Science Run of the LUX-ZEPLIN Experiment Open

J. Aalbers, D. S. Akerib, A. K. Al Musalhi, F. Alder, C. S. Amarasinghe , et al. · 2024

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…

Search for charge non-conservation and Pauli exclusion principle violation with the Majorana Demonstrator Open

I. J. Arnquist, F. T. Avignone, A. S. Barabash, C. J. Barton, K. H. Bhimani , et al. · 2024

Exotic Dark Matter Search with the Majorana Demonstrator Open

I. J. Arnquist, F. T. Avignone, A. S. Barabash, C. J. Barton, K. H. Bhimani , et al. · 2024

With excellent energy resolution and ultralow-level radiogenic backgrounds, the high-purity germanium detectors in the enable searches for several classes of exotic dark matter (DM) models. In this work, we report new experimental limits o…

First Constraints on WIMP-Nucleon Effective Field Theory Couplings in an Extended Energy Region From LUX-ZEPLIN Open

J. Aalbers, D. S. Akerib, A. K. Al Musalhi, F. Alder, C. S. Amarasinghe , et al. · 2023

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, South Dakota, USA, we report the initial limits on a model-…

Constraints on the Decay of Open

I. J. Arnquist, F. T. Avignone, A. S. Barabash, C. J. Barton, K. H. Bhimani , et al. · 2023

^{180m}Ta is a rare nuclear isomer whose decay has never been observed. Its remarkably long lifetime surpasses the half-lives of all other known β and electron capture decays due to the large K-spin differences and small energy differences…

Search for new physics in low-energy electron recoils from the first LZ exposure Open

J. Aalbers, D. S. Akerib, A. K. Al Musalhi, F. Alder, C. S. Amarasinghe , et al. · 2023

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 electron recoils, using the experiment’s first exposure of …

Energy calibration of germanium detectors for the Majorana Demonstrator Open

I.J. Arnquist, F.T. Avignone, A.S. Barabash, C.J. Barton, K.H. Bhimani , et al. · 2023

The Majorana Demonstrator was a search for neutrinoless double-beta decay (0 νββ ) in the 76 Ge isotope. It was staged at the 4850-foot level of the Sanford Underground Research Facility (SURF) in Lead, SD. The experiment consisted of 58 g…

A search for new physics in low-energy electron recoils from the first LZ exposure Open

The LZ Collaboration, J. Aalbers, D. S. Akerib, A. K. Al Musalhi, F. Alder , et al. · 2023

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 electron recoils, using the experiment's first exposure of …

First Dark Matter Search Results from the LUX-ZEPLIN (LZ) Experiment Open

J. Aalbers, D. S. Akerib, C. W. Akerlof, A. K. Al Musalhi, F. Alder , et al. · 2023

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 Dakota, USA. This Letter reports results from LUX-ZEPLIN's fir…

Background determination for the LUX-ZEPLIN dark matter experiment Open

J. Aalbers, D. S. Akerib, A. K. Al Musalhi, F. Alder, S. K. Alsum , et al. · 2023

The LUX-ZEPLIN experiment recently reported limits on WIMP-nucleus interactions from its initial science run, down to 9.2 x 10^–48 cm² for the spin-independent interaction of a 36 GeV/c² WIMP at 90% confiden…

Energy Calibration of Germanium Detectors for the MAJORANA DEMONSTRATOR Open

I. J. Arnquist, F. T. Avignone, A. S. Barabash, C. J. Barton, K. H. Bhimani , et al. · 2023

The MAJORANA DEMONSTRATOR was a search for neutrinoless double-beta decay ($0νββ$) in the $^{76}$Ge isotope. It was staged at the 4850-foot level of the Sanford Underground Research Facility (SURF) in Lead, SD. The experiment consisted of …

Erratum: Search for Spontaneous Radiation from Wave Function Collapse in the Majorana Demonstrator [Phys. Rev. Lett. <b>129</b>, 080401 (2022)] Open

I. J. Arnquist, F. T. Avignone, A. S. Barabash, C. J. Barton, K. H. Bhimani , et al. · 2023

This corrects the article DOI: 10.1103/PhysRevLett.129.080401.

Constraints on the decay of $^{180m}$Ta Open

I. J. Arnquist, F. T. Avignone, A. S. Barabash, C. J. Barton, K. H. Bhimani , et al. · 2023

$^{180m}$Ta is a rare nuclear isomer whose decay has never been observed. Its remarkably long lifetime surpasses the half-lives of all other known $β$ and electron capture decays due to the large K-spin differences and small energy differe…

α -event characterization and rejection in point-contact HPGe detectors Open

I. J. Arnquist, F. T. Avignone, A. S. Barabash, C. J. Barton, F. E. Bertrand , et al. · 2023

Final Result of the Majorana Demonstrator’s Search for Neutrinoless Double- Decay in Open

I. J. Arnquist, F. T. Avignone, A. S. Barabash, C. J. Barton, Paul Barton , et al. · 2023

The Majorana Demonstrator searched for neutrinoless double-β decay (0νββ) of ^{76}Ge using modular arrays of high-purity Ge detectors operated in vacuum cryostats in a low-background shield. The arrays operated with up to 40.4 kg of detect…

Interpretable boosted-decision-tree analysis for the Majorana Demonstrator Open

I. J. Arnquist, F. T. Avignone, A. S. Barabash, C. J. Barton, K. H. Bhimani , et al. · 2023

The MAJORANA DEMONSTRATOR is a leading experiment searching for neutrinoless double-beta decay with high purity germanium (HPGe) detectors. Machine learning provides a new way to maximize the amount of information provided by these detecto…

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