3 papers
hep-ex2025
Magneto-: Heavy neutral lepton search using Pu $β^-$ decays
C. Lee, X. Zhang, A. Kavner +12
The MAGNETO- experiment searches for keV-scale heavy neutral leptons (HNLs) through precise measurements of the $β^-$-decay spectrum of Pu. We present spectra comprisi…
nucl-ex2025
The measurement of the Tc -decay spectrum and its implications for the effective value of weak axial coupling
J. W. Song, M. Ramalho, M. K. Lee +9
Measurements of -spectral shapes is an important way to examine the effective value of the weak axial coupling . These stu\ dies focus specifically on forbidden non-…
physics.ins-det2024
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…