Publications (45)
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…
HD147506b: A Super-Massive Planet in an Eccentric Orbit Transiting a Bright Star
G. A. Bakos, G. Kovacs, G. Torres +18
We report the discovery of a massive (Mp = 9.04+/-0.50 MJup) planet transiting the bright (V = 8.7) F8 star HD 147506, with an orbital period of 5.63341+/-0.00013 days and an eccen…
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/…
Measurement of the Gamma Ray Background in the Davis Cavern at the Sanford Underground Research Facility
D. S. Akerib, C. W. Akerlof, S. K. Alsum +164
Deep underground environments are ideal for low background searches due to the attenuation of cosmic rays by passage through the earth. However, they are affected by backgrounds fr…
X-ray absorption study of Ti-activated sodium aluminum hydride
J. Graetz, A. Y. Ignatov, T. A. Tyson +2
Ti K-edge x-ray absorption near edge spectroscopy (XANES) was used to explore the Ti valence and coordination in Ti-activated sodium alanate. An empirical relationship was establis…
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…
Method of reconstructing a moving pulse
Stephen J. Howard, R. D. Horton, D. Q. Hwang +3
We present a method of analyzing a set of N time signals f_i(t) that consist of local measurements of the same physical observable taken at N sequential locations Z_i along the len…
Chemodynamics of the Milky Way. I. The first year of APOGEE data
F. Anders, C. Chiappini, B. X. Santiago +38
We investigate the chemo-kinematic properties of the Milky Way disc by exploring the first year of data from the Apache Point Observatory Galactic Evolution Experiment (APOGEE), an…
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…
Proton spectroscopy of 48Ni, 46Fe, and 44Cr
M. Pomorski, M. Pfützner, W. Dominik +21
Results of decay spectroscopy on nuclei in vicinity of the doubly magic 48Ni are presented. The measurements were performed with a Time Projection Chamber with optical readout whic…
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,…
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)…
An extreme thermal cycling reliability test of ATLAS ITk Strips barrel modules
A. Tishelman-Charny, A. Affolder, F. Capocasa +17
At the end of Run 3 of the Large Hadron Collider (LHC), the accelerator complex will be upgraded to the High-Luminosity LHC (HL-LHC) in order to increase the total amount of data p…
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…
A stochastic model of supercoiling-dependent transcription
C. A. Brackley, J. Johnson, A. Bentivoglio +4
We propose a stochastic model for gene transcription coupled to DNA supercoiling, where we incorporate the experimental observation that polymerases create supercoiling as they unw…
The HARPS-N Rocky Planet Search I. HD219134b: A transiting rocky planet in a multi-planet system at 6.5 pc from the Sun
F. Motalebi, S. Udry, M. Gillon +36
We present here the detection of a system of four low-mass planets around the bright (V=5.5) and close-by (6.5 pc) star HD219134. This is the first result of the Rocky Planet Searc…
Binding of bivalent transcription factors to active and inactive regions folds human chromosomes into loops, rosettes and domains
C. A. Brackley, J. Johnson, S. Kelly +2
Biophysicists are modeling conformations of interphase chromosomes, often basing the strengths of interactions between segments distant on the genetic map on contact frequencies de…
The Catalina Surveys Periodic Variable Star Catalog
A. J. Drake, M. J. Graham, S. G. Djorgovski +18
We present ~47,000 periodic variables found during the analysis of 5.4 million variable star candidates within a 20,000 square degree region covered by the Catalina Surveys Data Re…
In-source and in-trap formation of molecular ions in the actinide mass range at CERN-ISOLDE
M. Au, M. Athanasakis-Kaklamanakis, L. Nies +22
The use of radioactive molecules for fundamental physics research is a developing interdisciplinary field limited dominantly by their scarce availability. In this work, radioactive…
Oscillating red giants observed during Campaign 1 of the Kepler K2 mission: New prospects for galactic archaeology
D. Stello, D. Huber, S. Sharma +21
NASA's re-purposed Kepler mission -- dubbed K2 -- has brought new scientific opportunities that were not anticipated for the original Kepler mission. One science goal that makes op…
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…
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…
Extrusion without a motor: a new take on the loop extrusion model of genome organization
C. A. Brackley, J. Johnson, D. Michieletto +4
Chromatin loop extrusion is a popular model for the formation of CTCF loops and topological domains. Recent HiC data have revealed a strong bias in favour of a particular arrangeme…
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…
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…
Studies in Pulse Shape Discrimination for an Optimized ASIC Design
B. Boxer, B. Godfrey, C. Grace +3
The continued advancements of Silicon Photomultipliers (SiPMs) have made them viable photosensors for low recoil energy Pulse Shape Discrimination (PSD) between fast neutron and ga…
Simulating topological domains in human chromosomes with a fitting-free model
C. A. Brackley, D. Michieletto, F. Mouvet +4
We discuss a polymer model for the 3D organization of human chromosomes. A chromosome is represented by a string of beads, with each bead being "colored" according to 1D bioinforma…
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…
Non-equilibrium chromosome looping via molecular slip-links
C. A. Brackley, J. Johnson, D. Michieletto +4
We propose a model for the formation of chromatin loops based on the diffusive sliding of a DNA-bound factor which can dimerise to form a molecular slip-link. Our slip-links mimic…
Probing the stellar initial mass function with high- supernovae
R. S. de Souza, E. E. O. Ishida, D. J. Whalen +2
The first supernovae will soon be visible at the edge of the observable universe, revealing the birthplaces of Population III stars. With upcoming near-infrared missions, a broad a…
A Hot Saturn Planet Orbiting HD 88133, from the N2K Consortium
D. A. Fischer, G. Laughlin, R. P. Butler +20
The N2K consortium is carrying out a distributed observing campaign with the Keck, Magellan and Subaru telescopes, as well as the automatic photometric telescopes of Fairborn Obser…
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…
Analysis of ZDDP content and thermal decomposition in motor oils using NAA and NMR
S. Ferguson, J. Johnson, D. Gonzales +3
Zinc dialkyldithiophosphates (ZDDPs) are one of the most common anti-wear additives present in commercially-available motor oils. The ZDDP concentrations of motor oils are most com…
Constraining stellar and orbital co-evolution through ensemble seismology of solar-like oscillators in binary systems -- A census of oscillating red-giants and main-sequence stars in Gaia DR3 binaries
P. G. Beck, D. H. Grossmann, L. Steinwender +23
Binary systems constitute a valuable astrophysics tool for testing our understanding of stellar structure and evolution. Systems containing a oscillating component are interesting…
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…
High Precision Measurement of the Proton Elastic Form Factor Ratio at low
X. Zhan, K. Allada, D. S. Armstrong +68
We report a new, high-precision measurement of the proton elastic form factor ratio μ_p G_E/G_M for the four-momentum transfer squared Q^2 = 0.3-0.7 (GeV/c)^2. The measurement was…
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…