Publications (79)
Optically Detected Magnetic Resonances of Nitrogen-Vacancy Ensembles in 13C Enriched Diamond
A. Jarmola, Z. Bodrog, P. Kehayias +6
We present an experimental and theoretical study of the optically detected magnetic resonance signals for ensembles of negatively charged nitrogen-vacancy (NV) centers in 13C isoto…
A Search for Low-mass Dark Matter via Bremsstrahlung Radiation and the Migdal Effect in SuperCDMS
M. F. Albakry, I. Alkhatib, D. Alonso +130
We present a new analysis of previously published of SuperCDMS data using a profile likelihood framework to search for sub-GeV dark matter (DM) particles through two inelastic scat…
Applying Geant4's Importance Biasing to improve the efficiency of SuperCDMS background simulations
B. Zatschler, A. J. Biffl, R. Calkins +6
Experiments searching for extremely rare events surround their sensitive detectors with several layers of different shielding materials to protect them from external radiation and…
Community Report from the 2025 SNOLAB Future Projects Workshop
M. D. Diamond, P. Abbamonte, A. Arvanitaki +54
SNOLAB hosts a biannual Future Projects Workshop (FPW) with the goal of encouraging future project stakeholders to present ideas, concepts, and needs for experiments or programs th…
Improved WIMP-search reach of the CDMS II germanium data
R. Agnese, A. J. Anderson, M. Asai +86
CDMS II data from the 5-tower runs at the Soudan Underground Laboratory were reprocessed with an improved charge-pulse fitting algorithm. Two new analysis techniques to reject surf…
First direct limits on Lightly Ionizing Particles with electric charge less than
R. Agnese, A. J. Anderson, D. Balakishiyeva +82
While the Standard Model of particle physics does not include free particles with fractional charge, experimental searches have not ruled out their existence. We report results fro…
Data-Driven Modeling of Electron Recoil Nucleation in PICO CF Bubble Chambers
C. Amole, M. Ardid, I. J. Arnquist +76
The primary advantage of moderately superheated bubble chamber detectors is their simultaneous sensitivity to nuclear recoils from WIMP dark matter and insensitivity to electron re…
An X-ray activity cycle on the young solar-like star
M. Coffaro, B. Stelzer, S. Orlando +7
In 2015 we started the XMM-Newton monitoring of the young solar-like star Epsilon Eridani (440 Myr), one of the youngest solar-like stars with a known chromospheric CaII cycle. By…
Characterization of Potential U.S. Sites for the Cherenkov Telescope Array
R. A. Ong, T. Aune, J. Hall
The Cherenkov Telescope Array (CTA) is a major ground-based observatory proposed for gamma-ray astronomy. CTA is envisioned to consist of two large arrays of atmospheric Cherenkov…
Dark matter effective field theory scattering in direct detection experiments
K. Schneck, B. Cabrera, D. G. Cerdeno +84
We examine the consequences of the effective field theory (EFT) of dark matter-nucleon scattering for current and proposed direct detection experiments. Exclusion limits on EFT cou…
Direct Measurement of the Bubble Nucleation Energy Threshold in a CF3I Bubble Chamber
COUPP Collaboration, E. Behnke, T. Benjamin +20
We have directly measured the energy threshold and efficiency for bubble nucleation from iodine recoils in a CF3I bubble chamber in the energy range of interest for a dark matter s…
Dark Matter Search Results from the Complete Exposure of the PICO-60 CF Bubble Chamber
C. Amole, M. Ardid, I. J. Arnquist +69
Final results are reported from operation of the PICO-60 CF dark matter detector, a bubble chamber filled with 52 kg of CF located in the SNOLAB underground laborat…
TeV Gamma-Ray Observations of the Perseus and Abell 2029 Galaxy Clusters
J. S. Perkins, H. M. Badran, G. Blaylock +41
Galaxy clusters might be sources of TeV gamma rays emitted by high-energy protons and electrons accelerated by large scale structure formation shocks, galactic winds, or active gal…
Low-Energy Calibration of SuperCDMS HVeV Cryogenic Silicon Calorimeters Using Compton Steps
SuperCDMS Collaboration, M. F. Albakry, I. Alkhatib +148
Cryogenic calorimeters for low-mass dark matter searches have achieved sub-eV energy resolutions, driving advances in both low-energy calibration techniques and our understanding o…
Measurement of the Parity-Odd Angular Distribution of Gamma Rays From Polarized Neutron Capture on Cl
N. Fomin, R. Alarcon, L. Alonzi +61
We report a measurement of two energy-weighted gamma cascade angular distributions from polarized slow neutron capture on the Cl nucleus, one parity-odd correlation propor…
The First VERITAS Telescope
J. Holder, R. W. Atkins, H. M. Badran +73
The first atmospheric Cherenkov telescope of VERITAS (the Very Energetic Radiation Imaging Telescope Array System) has been in operation since February 2005. We present here a tech…
A Strategy for Low-Mass Dark Matter Searches with Cryogenic Detectors in the SuperCDMS SNOLAB Facility
SuperCDMS Collaboration, M. F. Albakry, I. Alkhatib +125
The SuperCDMS Collaboration is currently building SuperCDMS SNOLAB, a dark matter search focused on nucleon-coupled dark matter in the 1-5 GeV/c mass range. Looking to the futu…
Developing a Bubble Chamber Particle Discriminator Using Semi-Supervised Learning
B. Matusch, C. Amole, M. Ardid +70
The identification of non-signal events is a major hurdle to overcome for bubble chamber dark matter experiments such as PICO-60. The current practice of manually developing a disc…
Mechanical Ventilator Milano (MVM): A Novel Mechanical Ventilator Designed for Mass Scale Production in Response to the COVID-19 Pandemic
C. Galbiati, A. Abba, P. Agnes +145
Presented here is the design of the Mechanical Ventilator Milano (MVM), a novel mechanical ventilator designed for rapid mass production in response to the COVID-19 pandemic to add…
Evaluation of SNOLAB background mitigation procedures through the use of an ICP-MS based dust monitoring methodology
M. L. di Vacri, S. Scorza, A. French +5
Dust particulate fallout on materials in use for rare-event searches is a concerning source of radioactive backgrounds due to the presence of naturally occurring radionuclides K-40…
Optical spectroscopy shows that the normal state of URuSi is an anomalous Fermi liquid
U. Nagel, T. Uleksin, T. Rõõm +9
Fermi showed that electrons, as a result of their quantum nature, form a gas of particles where the temperature and density follow the so called Fermi distribution. In a metal, as…
Effective Field Theory Analysis of CDMSlite Run 2 Data
SuperCDMS Collaboration, M. F. Albakry, I. Alkhatib +127
CDMSlite Run 2 was a search for weakly interacting massive particles (WIMPs) with a cryogenic 600 g Ge detector operated in a high-voltage mode to optimize sensitivity to WIMPs of…
Very High Energy Observations of Gamma-Ray Burst Locations with the Whipple Telescope
D. Horan, R. W. Atkins, H. M. Badran +56
Gamma-ray burst (GRB) observations at very high energies (VHE, E > 100 GeV) can impose tight constraints on some GRB emission models. Many GRB afterglow models predict a VHE compon…
Results from the Super Cryogenic Dark Matter Search (SuperCDMS) experiment at Soudan
SuperCDMS Collaboration, R. Agnese, T. Aramaki +101
We report the result of a blinded search for Weakly Interacting Massive Particles (WIMPs) using the majority of the SuperCDMS Soudan dataset. With an exposure of 1690 kg days, a si…
Snowmass CF1 Summary: WIMP Dark Matter Direct Detection
P. Cushman, C. Galbiati, D. N. McKinsey +46
As part of the Snowmass process, the Cosmic Frontier WIMP Direct Detection subgroup (CF1) has drawn on input from the Cosmic Frontier and the broader Particle Physics community to…
The Murchison Widefield Array: the Square Kilometre Array Precursor at low radio frequencies
S. J. Tingay, R. Goeke, J. D. Bowman +57
The Murchison Widefield Array (MWA) is one of three Square Kilometre Array Precursor telescopes and is located at the Murchison Radio-astronomy Observatory in the Murchison Shire o…
Improved Limits on Spin-Dependent WIMP-Proton Interactions from a Two Liter CFI Bubble Chamber
E. Behnke, J. Behnke, S. J. Brice +14
Data from the operation of a bubble chamber filled with 3.5 kg of CFI in a shallow underground site are reported. An analysis of ultrasound signals accompanying bubble nuclea…
Initial Characteristics of Kepler Short Cadence Data
Ronald L. Gilliland, J. M. Jenkins, W. J. Borucki +12
The Kepler Mission offers two options for observations -- either Long Cadence (LC) used for the bulk of core mission science, or Short Cadence (SC) which is used for applications s…
Silicon Detector Dark Matter Results from the Final Exposure of CDMS II
CDMS Collaboration, R. Agnese, Z. Ahmed +88
We report results of a search for Weakly Interacting Massive Particles (WIMPS) with the silicon detectors of the CDMS II experiment. This blind analysis of 140.2 kg-days of data ta…
First dark matter search results from a 4-kg CFI bubble chamber operated in a deep underground site
E. Behnke, J. Behnke, S. J. Brice +19
New data are reported from the operation of a 4.0 kg CFI bubble chamber in the 6800-foot-deep SNOLAB underground laboratory. The effectiveness of ultrasound analysis in discr…
Combined Limits on WIMPs from the CDMS and EDELWEISS Experiments
CDMS, EDELWEISS Collaborations, : +114
The CDMS and EDELWEISS collaborations have combined the results of their direct searches for dark matter using cryogenic germanium detectors. The total data set represents 614 kg.d…
Maximum Likelihood Analysis of Low Energy CDMS II Germanium Data
SuperCDMS Collaboration, R. Agnese, A. J. Anderson +84
We report on the results of a search for a Weakly Interacting Massive Particle (WIMP) signal in low-energy data of the Cryogenic Dark Matter Search (CDMS~II) experiment using a max…
Development of Bubble Chambers With Enhanced Stability and Sensitivity to Low-Energy Nuclear Recoils
W. J. Bolte, J. I. Collar, M. Crisler +10
The viability of using a Bubble Chamber for rare event searches and in particular for the detection of dark matter particle candidates is considered. Techniques leading to the deac…
Impact of energetic alpha particles on core turbulence in an ARC-class fusion power plant
J. Hall, N. T Howard, P. Rodriguez-Fernandez +7
In this work, we investigate the impact of fusion-born alpha particles on core turbulence and transport in the ARC tokamak fusion power plant using linear and nonlinear gyrokinetic…
Projected Sensitivity of the SuperCDMS SNOLAB experiment
R. Agnese, A. J. Anderson, T. Aramaki +93
SuperCDMS SNOLAB will be a next-generation experiment aimed at directly detecting low-mass (< 10 GeV/c) particles that may constitute dark matter by using cryogenic detectors o…
Search for Low-Mass WIMPs with SuperCDMS
R. Agnese, A. J. Anderson, M. Asai +92
We report a first search for weakly interacting massive particles (WIMPs) using the background rejection capabilities of SuperCDMS. An exposure of 577 kg-days was analyzed for WIMP…
Demonstration of Surface Electron Rejection with Interleaved Germanium Detectors for Dark Matter Searches
R. Agnese, A. J. Anderson, D. Balakishiyeva +88
The SuperCDMS experiment in the Soudan Underground Laboratory searches for dark matter with a 9-kg array of cryogenic germanium detectors. Symmetric sensors on opposite sides measu…
First Observation of -odd Asymmetry in Polarized Neutron Capture on Hydrogen
D. Blyth, J. Fry, N. Fomin +61
We report the first observation of the parity-violating 2.2 MeV gamma-ray asymmetry in neutron-proton capture using polarized cold neutrons incident on a liquid parahyd…
Dark Matter Search Results from the PICO-60 CF Bubble Chamber
C. Amole, M. Ardid, I. J. Arnquist +59
New results are reported from the operation of the PICO-60 dark matter detector, a bubble chamber filled with 52 kg of CF located in the SNOLAB underground laboratory. As i…
Results from a Low-Energy Analysis of the CDMS II Germanium Data
CDMS Collaboration, Z. Ahmed, D. S. Akerib +62
We report results from a reanalysis of data from the Cryogenic Dark Matter Search (CDMS II) experiment at the Soudan Underground Laboratory. Data taken between October 2006 and Sep…
Light Dark Matter Constraints from SuperCDMS HVeV Detectors Operated Underground with an Anticoincidence Event Selection
SuperCDMS Collaboration, M. F. Albakry, I. Alkhatib +139
This article presents constraints on dark-matter-electron interactions obtained from the first underground data-taking campaign with multiple SuperCDMS HVeV detectors operated in t…
Nuclear-recoil energy scale in CDMS II silicon dark-matter detectors
R. Agnese, A. J. Anderson, T. Aramaki +106
The Cryogenic Dark Matter Search (CDMS II) experiment aims to detect dark matter particles that elastically scatter from nuclei in semiconductor detectors. The resulting nuclear-re…
Planning the Future of U.S. Particle Physics (Snowmass 2013): Chapter 8: Instrumentation Frontier
M. Demarteau, R. Lipton, H. Nicholson +211
These reports present the results of the 2013 Community Summer Study of the APS Division of Particles and Fields ("Snowmass 2013") on the future program of particle physics in the…
Comments on "First Results of the Phase II SIMPLE Dark Matter Search"
C. E. Dahl, J. Hall, W. H. Lippincott
The SIMPLE Collaboration has reported results from their superheated C2ClF5 droplet detectors, including a description of acoustic discrimination between αdecays and nuclear recoi…
CDMSlite: A Search for Low-Mass WIMPs using Voltage-Assisted Calorimetric Ionization Detection in the SuperCDMS Experiment
R. Agnese, A. J. Anderson, M. Asai +77
SuperCDMS is an experiment designed to directly detect Weakly Interacting Massive Particles (WIMPs), a favored candidate for dark matter ubiquitous in the Universe. In this paper,…
Low-Mass WIMP Sensitivity and Statistical Discrimination of Electron and Nuclear Recoils by Varying Luke-Neganov Phonon Gain in Semiconductor Detectors
M. Pyle, D. A. Bauer, B. Cabrera +4
Amplifying the phonon signal in a semiconductor dark matter detector can be accomplished by operating at high voltage bias and converting the electrostatic potential energy into Lu…
Search for low-mass electron-recoil dark matter using a single-charge sensitive SuperCDMS-HVeV Detector
SuperCDMS Collaboration, M. F. Albakry, I. Alkhatib +146
We present constraints on low-mass dark matter electron scattering and absorption interactions using a SuperCDMS high-voltage eV-resolution (HVeV) detector. Data were taken undergr…
Calibration and Performance of Germanium High Voltage Detectors for SuperCDMS SNOLAB
M. F. Albakry, I. Alkhatib, D. Alonso-González +140
As SuperCDMS SNOLAB is getting ready to search for low mass dark matter particles, using cryogenic Ge and Si detectors, a set of six of the new SuperCDMS High Voltage (HV) detector…
Silicon detector results from the first five-tower run of CDMS II
CDMS Collaboration, R. Agnese, Z. Ahmed +87
We report results of a search for Weakly Interacting Massive Particles (WIMPs) with the Si detectors of the CDMS II experiment. This report describes a blind analysis of the first…
Search for annual modulation in low-energy CDMS-II data
CDMS Collaboration, Z. Ahmed, D. S. Akerib +64
We report limits on annual modulation of the low-energy event rate from the Cryogenic Dark Matter Search (CDMS II) experiment at the Soudan Underground Laboratory. Such a modulatio…
Sensor Compendium
M. Artuso, M. Battaglia, G. Bolla +29
Sensors play a key role in detecting both charged particles and photons for all three frontiers in Particle Physics. The signals from an individual sensor that can be used include…
Analysis of the low-energy electron-recoil spectrum of the CDMS experiment
Z. Ahmed, D. S. Akerib, S. Arrenberg +54
We report on the analysis of the low-energy electron-recoil spectrum from the CDMS II experiment using data with an exposure of 443.2 kg-days. The analysis provides details on the…
The TeV spectrum of H1426+428
D. Petry, I. H. Bond, S. M. Bradbury +45
The BL Lac object H1426+428 was recently detected as a high energy gamma-ray source by the VERITAS collaboration (Horan et al. 2002). We have reanalyzed the 2001 portion of the dat…
Investigating the sources of low-energy events in a SuperCDMS-HVeV detector
SuperCDMS Collaboration, M. F. Albakry, I. Alkhatib +126
Recent experiments searching for sub-GeV/ dark matter have observed event excesses close to their respective energy thresholds. Although specific to the individual technologie…
Improved dark matter search results from PICO-2L Run 2
C. Amole, M. Ardid, I. J. Arnquist +55
New data are reported from a second run of the 2-liter PICO-2L CF bubble chamber with a total exposure of 129kg-days at a thermodynamic threshold energy of 3.3keV.…
First measurement of the nuclear-recoil ionization yield in silicon at 100 eV
M. F. Albakry, I. Alkhatib, D. Alonso +137
We measured the nuclear--recoil ionization yield in silicon with a cryogenic phonon-sensitive gram-scale detector. Neutrons from a mono-energetic beam scatter off of the silicon nu…
The X-ray cycle in the solar-type star HD 81809
F. Favata, G. Micela, S. Orlando +3
(abridged) Our long-term XMM-Newton program of long-term monitoring of a solar-like star with a well-studied chromospheric cycle, HD 81809 aims to study whether an X-ray cycle is p…
Calibration Plan for the SBC 10-kg Liquid Argon Detector with 100 eV Target Threshold
E. Alfonso-Pita, D. Baxter, E. Behnke +32
The Scintillating Bubble Chamber (SBC) Collaboration is designing a new generation of low background, noble liquid bubble chamber experiments with sub-keV nuclear recoil threshold.…
Accelerating integrated modeling with surrogate-based optimization: the MAESTRO workflow
P. Rodriguez-Fernandez, N. T. Howard, J. Hall +14
This paper introduces the MAESTRO workflow, that enables the coupling of the PORTALS framework [P. Rodriguez-Fernandez et al, Nucl. Fusion 2024] with external solvers for the plasm…
Multi-channel, multi-template event reconstruction for SuperCDMS data using machine learning
M. F. Albakry, I. Alkhatib, D. Alonso-Gonzalez +139
SuperCDMS SNOLAB uses kilogram-scale germanium and silicon detectors to search for dark matter. Each detector has Transition Edge Sensors (TESs) patterned on the top and bottom fac…
A Search for Dark Matter Annihilation with the Whipple 10m Telescope
M. Wood, G. Blaylock, S. M. Bradbury +33
We present observations of the dwarf galaxies Draco and Ursa Minor, the local group galaxies M32 and M33, and the globular cluster M15 conducted with the Whipple 10m gamma-ray tele…
Dark Matter Search Results from the PICO-2L CF Bubble Chamber
C. Amole, M. Ardid, D. M. Asner +54
New data are reported from the operation of a 2-liter CF bubble chamber in the 2100 meter deep SNOLAB underground laboratory, with a total exposure of 211.5 kg-days at four…
Batch VUV4 Characterization for the SBC-LAr10 scintillating bubble chamber
H. Hawley-Herrera, E. Alfonso-Pita, E. Behnke +28
The Scintillating Bubble Chamber (SBC) collaboration purchased 32 Hamamatsu VUV4 silicon photomultipliers (SiPMs) for use in SBC-LAr10, a bubble chamber containing 10~kg of liquid…
Low-threshold response of a scintillating xenon bubble chamber to nuclear and electronic recoils
E. Alfonso-Pita, E. Behnke, M. Bressler +29
A device filled with pure xenon first demonstrated the ability to operate simultaneously as a bubble chamber and scintillation detector in 2017. Initial results from data taken at…
Multicomponent Activity Cycles using Hilbert-Huang Analysis
E. N. Velloso, F. Anthony, J. D. do Nascimento +3
The temporal analysis of stellar activity evolution is usually dominated by a complex trade-off between model complexity and interpretability, often by neglecting the non-stationar…
Velocity independent constraints on spin-dependent DM-nucleon interactions from IceCube and PICO
IceCube Collaboration, M. G. Aartsen, M. Ackermann +419
Adopting the Standard Halo Model (SHM) of an isotropic Maxwellian velocity distribution for dark matter (DM) particles in the Galaxy, the most stringent current constraints on thei…
Dark Matter Search Results from the PICO-60 CFI Bubble Chamber
C. Amole, M. Ardid, D. M. Asner +56
New data are reported from the operation of the PICO-60 dark matter detector, a bubble chamber filled with 36.8 kg of CFI and located in the SNOLAB underground laboratory. PICO…
Low-Mass Dark Matter Search with CDMSlite
SuperCDMS Collaboration, R. Agnese, A. J. Anderson +105
The SuperCDMS experiment is designed to directly detect weakly interacting massive particles (WIMPs) that may constitute the dark matter in our Galaxy. During its operation at the…
Search for TeV Radiation from Selected Local Group Galaxies
J. Hall
Some candidate dark matter particles, such as neutralinos in supersymmetry, would annihilate producing GeV/TeV gamma rays. We report on recent observations of two dwarf spheroid ga…
Snowmass 2021 Underground Facilities and Infrastructure Overview Topical Report
L. Baudis, J. Hall, K. T. Lesko +1
The Underground Frontier (UF) was charged with assessing the anticipated needs and available space for well shielded underground space to conduct scientific research. The Frontier…
Search for inelastic dark matter with the CDMS II experiment
CDMS Collaboration, Z. Ahmed, D. S. Akerib +63
Results are presented from a reanalysis of the entire five-tower data set acquired with the Cryogenic Dark Matter Search (CDMS II) experiment at the Soudan Underground Laboratory,…
Radiopurity material assays and radiation exposure projections for superconducting qubit measurements at SNOLAB
Y. Ahmed, B. Binoy, R. Bunker +21
Interactions of cosmic rays and other forms of ionizing radiation pose a significant challenge to the reliable operation of state-of-the-art quantum devices and error correction in…
Snowmass 2021 Scintillating Bubble Chambers: Liquid-noble Bubble Chambers for Dark Matter and CENS Detection
E. Alfonso-Pita, M. Baker, E. Behnke +42
The Scintillating Bubble Chamber (SBC) Collaboration is developing liquid-noble bubble chambers for the quasi-background-free detection of low-mass (GeV-scale) dark matter and cohe…
WIMP-Search Results from the Second CDMSlite Run
SuperCDMS Collaboration, R. Agnese, A. J. Anderson +87
The CDMS low ionization threshold experiment (CDMSlite) uses cryogenic germanium detectors operated at a relatively high bias voltage to amplify the phonon signal in the search for…
The Pulsar Search Collaboratory: Discovery and Timing of Five New Pulsars
R. Rosen, J. Swiggum, M. A. McLaughlin +68
We present the discovery and timing solutions of five new pulsars by students involved in the Pulsar Search Collaboratory (PSC), a NSF-funded joint program between the National Rad…
Section on Prospects for Dark Matter Detection of the White Paper on the Status and Future of Ground-Based TeV Gamma-Ray Astronomy
J. Buckley, E. A. Baltz, G. Bertone +18
This is a report on the findings of the dark matter science working group for the white paper on the status and future of TeV gamma-ray astronomy. The white paper was commissioned…
The Hadron Hose: Continuous Toroidal Focusing for Conventional Neutrino Beams
J. Hylen, D. Bogert, R. Ducar +17
We have developed a new focusing system for conventional neutrino beams. The ``Hadron Hose'' is a wire located in the meson decay volume, downstream of the target and focusing horn…
Observations of the Unidentified TeV Gamma-Ray Source TeV J2032+4130 with the Whipple Observatory 10 m Telescope
A. Konopelko, R. W. Atkins, G. Blaylock +58
We report on observations of the sky region around the unidentified TeV gamma-ray source TeV J2032+4130 carried out with the Whipple Observatory 10 m atmospheric Cherenkov telescop…
Ionization yield measurement in a germanium CDMSlite detector using photo-neutron sources
SuperCDMS Collaboration, M. F. Albakry, I. Alkhatib +126
Two photo-neutron sources, YBe and SbBe, have been used to investigate the ionization yield of nuclear recoils in the CDMSlite germanium detectors by the…