Explanipedia

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…

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…

Searches for high frequency variations in the 8-B neutrino flux at the Sudbury neutrino observatory Open

K. Rielage, Stanley R Seibert, Andrew Hime, S. R. Elliott, L. C. Stonehill , et al. · 2024

We have peformed three searches for high-frequency signals in the solar neutrino flux measured by the Sudbury Neutrino Observatory (SNO), motivated by the possibility that solar g-mode oscillations could affect the production or propagatio…

Evaluation of radioactive background rejection in 76Ge neutrino-less double-beta decay experiments using a highly segmented HPGe detector Open

David B. Campbell, K. Vetter, R. Henning, K. T. Lesko, Y-D. Chan , et al. · 2023

Report of the 2021 U.S. Community Study on the Future of Particle Physics (Snowmass 2021) Summary Chapter Open

J. N. Butler, R. Sekhar Chivukula, André de Gouvêa, Tao Han, Y. K. Kim , et al. · 2023

The 2021-22 High-Energy Physics Community Planning Exercise (a.k.a. ``Snowmass 2021'') was organized by the Division of Particles and Fields of the American Physical Society. Snowmass 2021 was a scientific study that provided an opportunit…

Snowmass 2021 Underground Facilities & Infrastructure Frontier Report Open

L. Baudis, J. Hall, K. T. Lesko, J. L. Orrell · 2022

The decade since Snowmass 2013 has seen extraordinary progress of high energy physics research performed--or planned for--at underground facilities. Drs. T. Kajita and A.B. McDonald were awarded the 2015 Nobel Prize in Physics for the disc…

Fast and Flexible Analysis of Direct Dark Matter Search Data with Machine Learning Open

LUX Collaboration, D. S. Akerib, S. Alsum, H. M. Araújo, X. Bai , et al. · 2022

We present the results from combining machine learning with the profile likelihood fit procedure, using data from the Large Underground Xenon (LUX) dark matter experiment. This approach demonstrates reduction in computation time by a facto…

β + decay and cosmic-ray half-lives of Pm 143 and Pm 144 Open

M. M. Hindi, B. Sur, A. E. Champagne, M. T. F. da Cruz, R. M. Larimer , et al. · 2021

The positron decay partial half-lives of 143 PM and 144 PM are needed to assess the viability of elemental Pm as a cosmic-ray clock. We have conducted experiments to measure the β+ branches of these isotopes; we find β+ branches of < 5.7 x…

Measurement of Neutrino Oscillation with KamLAND: Evidence of Spectral Distortion Open

T. Araki, K. Eguchi, S. Enomoto, K. Furuno, K. Ichimura , et al. · 2021

We present results of a study of neutrino oscillation based on a 766 ton/year exposure of KamLAND to reactor antineutrinos. We observe 258 [overline nu ]e candidate events with energies above 3.4 MeV compared to 365.2±23.7 events expected …

Enhancing the sensitivity of the LUX-ZEPLIN (LZ) dark matter experiment to low energy signals Open

D. S. Akerib, A. K. Al Musalhi, S. Alsum, C. S. Amarasinghe, A. Ames , et al. · 2021

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) scintillation signals resulting from particle interactions in their li…

Search for <i>hep</i> solar neutrinos and the diffuse supernova neutrino background using all three phases of the Sudbury Neutrino Observatory Open

B. Aharmim, S. N. Ahmed, A. E. Anthony, N. Barros, E. W. Beier , et al. · 2020

A search has been performed for neutrinos from two sources, the hep reaction in the solar pp fusion chain and the ν_e component of the diffuse supernova neutrino background (DSNB), using the full dataset of the Sudbury Neutrino O…

Black Hills State University Underground Campus Open

B. J. Mount, Keenan Thomas, Kelsey C. Oliver-Mallory, K. T. Lesko, R. W. Schnee , et al. · 2020

The Black Hills State University Underground Campus (BHUC) houses a low background counting facility on the 4850' level of the Sanford Underground Research Facility. There are currently four ultra-low background, high-purity germanium dete…

Search for annual and diurnal rate modulations in the LUX experiment Open

D. S. Akerib, S. Alsum, H. M. Araújo, X. Bai, J. Balajthy , et al. · 2018

Various dark matter models predict annual and diurnal modulations of dark\nmatter interaction rates in Earth-based experiments as a result of the Earth's\nmotion in the halo. Observation of such features can provide generic evidence\nfor d…

Ultralow energy calibration of LUX detector using electron capture Open

D. S. Akerib, S. Alsum, H. M. Araújo, X. Bai, A. J. Bailey , et al. · 2017

We report an absolute calibration of the ionization yields($\\textit{Q$_y$})$ and fluctuations for electronic recoil events in liquid xenon at discrete energies between 186 eV and 33.2 keV. The average electric field applied across the liq…

Chromatographic separation of radioactive noble gases from xenon Open

D. S. Akerib, H. M. Araújo, X. Bai, A. J. Bailey, J. Balajthy , et al. · 2017

First Searches for Axions and Axionlike Particles with the LUX Experiment Open

D. S. Akerib, S. Alsum, Chiara Aquino, H. M. Araújo, X. Bai , et al. · 2017

The first searches for axions and axionlike particles with the Large Underground Xenon experiment are presented. Under the assumption of an axioelectric interaction in xenon, the coupling constant between axions and electrons g_{Ae} is tes…

Deep Underground Science and Engineering Laboratory - Preliminary Design Report Open

K. T. Lesko, S.E.A. Acheson, José Alonso, Paul Bauer, Y. D. Chan , et al. · 2017

The DUSEL Project has produced the Preliminary Design of the Deep Underground Science and Engineering Laboratory (DUSEL) at the rehabilitated former Homestake mine in South Dakota. The Facility design calls for, on the surface, two new bui…

Black Hills State University Underground Campus Open

B. J. Mount, Keenan Thomas, Kelsey C. Oliver-Mallory, K. T. Lesko, R. W. Schnee , et al. · 2017

Results from a search for dark matter in LUX with 332 live days of exposure Open

D. S. Akerib, S. Alsum, H. M. Araújo, X. Bai, A. J. Bailey , et al. · 2016

Low-energy (0.7-74 keV) nuclear recoil calibration of the LUX dark matter experiment using D-D neutron scattering kinematics Open

LUX Collaboration, D. S. Akerib, S. Alsum, H. M. Araújo, Xuemin Bai , et al. · 2016

The Large Underground Xenon (LUX) experiment is a dual-phase liquid xenon time projection chamber (TPC) operating at the Sanford Underground Research Facility in Lead, South Dakota. A calibration of nuclear recoils in liquid xenon was perf…

First Results of the LUX Dark Matter Experiment Open

M. C. Carmona-Benitez, D. S. Akerib, H. M. Araújo, Xuemin Bai, A. J. Bailey , et al. · 2016

19F(α,n) thick target yield from 3.5 to 10.0 MeV Open

E. B. Norman, T. E. Chupp, K. T. Lesko, P J Grant, G.L. Woodruff · 2015

Low Background Counting at LBNL Open

A. R. Smith, Keenan Thomas, E. B. Norman, Y-D. Chan, K. T. Lesko , et al. · 2015

The Low Background Facility (LBF) at Lawrence Berkeley National Laboratory in Berkeley, California provides low background gamma spectroscopy services to a wide array of experiments and projects. The analysis of samples takes place within …

The Sanford Underground Research Facility at Homestake (SURF) Open

K. T. Lesko · 2015

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