papers

Publications (5)

nucl-ex2024

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…

physics.ins-det2026

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…

physics.atom-ph2026

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…

physics.ins-det2025

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…

physics.ins-det2026

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…