59 citations · 69 across the 8 of their papers we have counts for
10 papers
Shake-up and shake-off spectra in the electron capture decay of atomic Be
Mauro Guerra, Inwook Kim, Stephan Friedrich +33
The most stringent laboratory-based experimental limits on the existence of sub-MeV sterile neutrinos are currently set by decay spectroscopy of radioactive Be embedded into su…
Aluminum-Based Superconducting Tunnel Junction Sensors for Nuclear Recoil Spectroscopy
Spencer L. Fretwell, Connor Bray, Inwook Kim +31
The BeEST experiment is searching for sub-MeV sterile neutrinos by measuring nuclear recoil energies from the decay of Be implanted into superconducting tunnel junction (STJ) s…
Integration of Silica in G4CMP for Phonon Simulations: Framework and Tools for Material Integration
Caitlyn Stone-Whitehead, Israel Hernandez, Connor Bray +10
Superconducting detectors with sub-eV energy resolution have demonstrated success setting limits on Beyond the Standard Model (BSM) physics due to their unique sensitivity to low-e…
Next Generation Ta-STJ Sensor Arrays for BSM Physics Searches
Joseph P. T. Templet, Spencer Fretwell, Andrew Marino +9
The Beryllium Electron capture in Superconducting Tunnel junctions (BeEST) experiment uses superconducting tunnel junction (STJ) sensors to search for physics beyond the standard m…
High-Precision Excited-State Nuclear Recoil Spectroscopy with Superconducting Sensors
C. Bray, S. Fretwell, L. A. Zepeda-Ruiz +30
Superconducting sensors doped with rare isotopes have recently demonstrated powerful sensing performance for sub-keV radiation from nuclear decay. Here, we report the first high-re…
Signal processing and spectral modeling for the BeEST experiment
Inwook Kim, Connor Bray, Andrew Marino +35
The Beryllium Electron capture in Superconducting Tunnel junctions (BeEST) experiment searches for evidence of heavy neutrino mass eigenstates in the nuclear electron capture decay…
Direct Experimental Constraints on the Spatial Extent of a Neutrino Wavepacket
Joseph Smolsky, Kyle G Leach, Ryan Abells +35
Despite their high relative abundance in our Universe, neutrinos are the least understood fundamental particles of nature. They also provide a unique system to study quantum cohere…
The Data Acquisition System for Phase-III of the BeEST Experiment
C. Bray, S. Fretwell, I. Kim +27
The BeEST experiment is a precision laboratory search for physics beyond the standard model that measures the electron capture decay of Be implanted into superconducting tunnel…
Limits on the Existence of sub-MeV Sterile Neutrinos from the Decay of Be in Superconducting Quantum Sensors
S. Friedrich, G. B. Kim, C. Bray +14
Sterile neutrinos are natural extensions to the standard model of particle physics and provide a possible portal to the dark sector. We report a new search for the existence of sub…
Direct measurement of the Be capture ratio in Ta-based superconducting tunnel junctions
S. Fretwell, K. G. Leach, C. Bray +8
We report a high-statistics measurement of the orbital electron capture (EC) ratio in Be embedded in cryogenic Ta. The thin Ta film formed part of a high-resolution super…