Publications (66)
First Dark Matter Constraints from a SuperCDMS Single-Charge Sensitive Detector
SuperCDMS Collaboration, R. Agnese, T. Aralis +99
We present the first limits on inelastic electron-scattering dark matter and dark photon absorption using a prototype SuperCDMS detector having a charge resolution of 0.1 electron-…
Semiconductor phonon and charge transport Monte Carlo simulation using Geant4
D. Brandt, R. Agnese, P. Redl +9
A phonon and charge transport simulation based on the Geant4 Monte Carlo toolkit is presented. The transport code is capable of propagating acoustic phonons, electrons and holes in…
Photoelectric absorption cross section of silicon near the band gap from room temperature to sub-Kelvin temperature
C. Stanford, M. J. Wilson, B. Cabrera +6
The use of cryogenic silicon as a detector medium for dark matter searches is gaining popularity. Many of these searches are highly dependent on the value of the photoelectric abso…
Oblique propagation of electrons in crystals of germanium and silicon at sub-Kelvin temperature in low electric fields
B. Cabrera, M. Pyle, R. Moffatt +2
We show that oblique propagation of electrons in crystals of Ge and Si, where the electron velocity does not follow the electric field even on average, can be explained using stand…
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…
Production Rate Measurement of Tritium and Other Cosmogenic Isotopes in Germanium with CDMSlite
SuperCDMS Collaboration, R. Agnese, T. Aralis +95
Future direct searches for low-mass dark matter particles with germanium detectors, such as SuperCDMS SNOLAB, are expected to be limited by backgrounds from radioactive isotopes ac…
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…
Monte Carlo Comparisons to a Cryogenic Dark Matter Search Detector with low Transition-Edge-Sensor Transition Temperature
S. W. Leman, K. A. McCarthy, P. L. Brink +13
We present results on phonon quasidiffusion and Transition Edge Sensor (TES) studies in a large, 3 inch diameter, 1 inch thick [100] high purity germanium crystal, cooled to 50 mK…
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…
Thermal detection of single e-h pairs in a biased silicon crystal detector
R. K. Romani, P. L. Brink, B. Cabrera +11
We demonstrate that individual electron-hole pairs are resolved in a 1 cm by 4 mm thick silicon crystal (0.93 g) operated at 35 mK. One side of the detector is patterned…
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…
A New Apparatus for Detecting Micron-Scale Deviations from Newtonian Gravity
D. M. Weld, J. Xia, B. Cabrera +1
We describe the design and construction of a new apparatus for detecting or constraining deviations from Newtonian gravity at short length scales. The apparatus consists of a new t…
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…
Broadband Optical Modulation and Control at Millikelvin Temperatures
N. Tabassum, T. Aralis, J. Anczarski +17
A universal experimental challenge when studying radiation effects on cryogenic devices is to precisely and accurately characterize the position-dependent device response very near…
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…
Constraints on Lightly Ionizing Particles from CDMSlite
SuperCDMS Collaboration, I. Alkhatib, D. W. P. Amaral +115
The Cryogenic Dark Matter Search low ionization threshold experiment (CDMSlite) achieved efficient detection of very small recoil energies in its germanium target, resulting in sen…
Low-threshold analysis of CDMS shallow-site data
CDMS Collaboration, D. S. Akerib, M. J. Attisha +45
Data taken during the final shallow-site run of the first tower of the Cryogenic Dark Matter Search (CDMS II) detectors have been reanalyzed with improved sensitivity to small ener…
First Astronomical Application of a Cryogenic TES Spectrophotometer
R. W. Romani, A. J. Miller, B. Cabrera +2
We report on the first astronomical observations with a photon counting pixel detector that provides arrival time- (delta t = 100ns) and energy- (delta E_gamma < 0.15eV) resolved m…
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…
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…
An X-ray Galaxy Cluster Survey for Investigations of Dark Energy
Z. Haiman, S. Allen, N. Bahcall +34
The amount and nature of dark energy (DE) can be tightly constrained by measuring the spatial correlation features and evolution of a sample of ~ 100,000 galaxy clusters over the r…
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…
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…
UV-IR Science Prospects with TES Imaging Arrays
R. W. Romani, J. Burney, P. Brink +7
We are developing photon-counting cameras employing cryogenic arrays of energy-resolving TES (Transition Edge Sensor) pixels. These are being tested in ground-based instruments, bu…
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…
Phase-resolved Crab Studies with a Cryogenic TES Spectrophotometer
Roger W. Romani, A. J. Miller, B. Cabrera +2
We are developing time- and energy-resolved near-IR/optical/UV photon detectors based on sharp superconducting-normal transition edges in thin films. We report observations of the…
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…
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…
Constraints on dark photons and axion-like particles from SuperCDMS Soudan
SuperCDMS Collaboration, T. Aralis, T. Aramaki +104
We present an analysis of electron recoils in cryogenic germanium detectors operated during the SuperCDMS Soudan experiment. The data are used to set new constraints on the axioele…
Beyond the CDMS-II Dark Matter Search: SuperCDMS
P. L. Brink, B. Cabrera, C. L. Chang +41
Presently the CDMS-II collaboration's Weakly Interacting Massive Particle (WIMP) search at the Soudan Underground Laboratory sets the most stringent exclusion limits of any WIMP co…
Modeling of Impact Ionization and Charge Trapping in SuperCDMS HVeV Detectors
F. Ponce, W. Page, P. L. Brink +12
A model for charge trapping and impact ionization, and an experiment to measure these parameters is presented for the SuperCDMS HVeV detector. A procedure to isolate and quantify t…
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…
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…
High-field Spatial Imaging of Charge Transport in Silicon at Low Temperature
C. Stanford, R. A. Moffatt, N. A. Kurinsky +9
We present direct imaging measurements of charge transport across a 1 cm x 1 cm x 4 mm-thick crystal of high purity silicon (15 k-cm) at temperatures of 5 K and 500 mK. W…
Constraints on low-mass, relic dark matter candidates from a surface-operated SuperCDMS single-charge sensitive detector
SuperCDMS Collaboration, D. W. Amaral, T. Aralis +116
This article presents an analysis and the resulting limits on light dark matter inelastically scattering off of electrons, and on dark photon and axion-like particle absorption, us…
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…
Search for Low-Mass Dark Matter with CDMSlite Using a Profile Likelihood Fit
SuperCDMS Collaboration, R. Agnese, T. Aralis +100
The Cryogenic Dark Matter Search low ionization threshold experiment (CDMSlite) searches for interactions between dark matter particles and germanium nuclei in cryogenic detectors.…
Measurement Of Quasiparticle Transport In Aluminum Films Using Tungsten Transition-Edge Sensors
J. J. Yen, B. Shank, B. A. Young +8
We report new experimental studies to understand the physics of phonon sensors which utilize quasiparticle diffusion in thin aluminum films into tungsten transition-edge-sensors (T…
Phonon Quasidiffusion in Cryogenic Dark Matter Search Large Germanium Detectors
S. W. Leman, B. Cabrera, K. A. McCarthy +11
We present results on quasidiffusion studies in large, 3 inch diameter, 1 inch thick [100] high purity germanium crystals, cooled to 50 mK in the vacuum of a dilution refrigerator,…
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…
Spatial Imaging of Charge Transport in Silicon at Low Temperature
R. A. Moffatt, N. A. Kurinsky, C. Stanford +10
We present direct imaging measurements of charge transport across a 1 cm 1 cm 4 mm crystal of high purity silicon (20 kcm) at temperatures between 500 mK…
Measuring the Impact Ionization and Charge Trapping Probabilities in SuperCDMS HVeV Phonon Sensing Detectors
F. Ponce, W. Page, P. L. Brink +12
A 0.93 gram cm SuperCDMS silicon HVeV detector operated at 30 mK was illuminated by 1.91 eV photons using a room temperature pulsed laser coupled to the…
Comparison of CDMS [100] and [111] oriented germanium detectors
S. W. Leman, S. A. Hertel, P. Kim +7
The Cryogenic Dark Matter Search (CDMS) utilizes large mass, 3" diameter 1" thick target masses as particle detectors. The target is instrumented with both phonon and ioni…
G4CMP: Condensed Matter Physics Simulation Using the Geant4 Toolkit
M. H. Kelsey, R. Agnese, Y. F. Alam +44
G4CMP simulates phonon and charge transport in cryogenic semiconductor crystals using the Geant4 toolkit. The transport code is capable of simulating the propagation of acoustic ph…
Time Evolution of Electric Fields in CDMS Detectors
S. W. Leman, D. Brandt, P. L. Brink +19
The Cryogenic Dark Matter Search (CDMS) utilizes large mass, 3" diameter x 1" thick target masses as particle detectors. The target is instrumented with both phonon and ionization…
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…
Imaging the Oblique Propagation of Electrons in Germanium Crystals at Low Temperature and Low Electric Field
R. A. Moffatt, B. Cabrera, B. M. Corcoran +11
Excited electrons in the conduction band of germanium collect into four energy minima, or valleys, in momentum space. These local minima have highly anisotropic mass tensors which…
Light Dark Matter Search with a High-Resolution Athermal Phonon Detector Operated Above Ground
I. Alkhatib, D. W. P. Amaral, T. Aralis +121
We present limits on spin-independent dark matter-nucleon interactions using a Si athermal phonon detector with a baseline energy resolution of $Ï_E=3.86 \pm 0…
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,…
Validation of Phonon Physics in the CDMS Detector Monte Carlo
K. A. McCarthy, S. W. Leman, A. J. Anderson +19
The SuperCDMS collaboration is a dark matter search effort aimed at detecting the scattering of WIMP dark matter from nuclei in cryogenic germanium targets. The CDMS Detector Monte…
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…
Nonlinear Optimal Filter Technique For Analyzing Energy Depositions In TES Sensors Driven Into Saturation
B. Shank, J. J. Yen, B. Cabrera +7
We present a detailed thermal and electrical model of superconducting transition edge sensors (TESs) connected to quasiparticle (qp) traps, such as the W TESs connected to Al qp tr…
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…