S. Fretwell

collaborators

2 papers

nucl-ex2020

Limits on the Existence of sub-MeV Sterile Neutrinos from the Decay of $^{7}$ 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…

nucl-ex2020

Direct measurement of the $^{7}$ Be $L / K$ capture ratio in Ta-based superconducting tunnel junctions

S. Fretwell, K. G. Leach, C. Bray +8

We report a high-statistics measurement of the $L / K$ orbital electron capture (EC) ratio in $^{7}$ Be embedded in cryogenic Ta. The thin Ta film formed part of a high-resolution super…

Limits on the Existence of sub-MeV Sterile Neutrinos from the Decay of 7Be in Superconducting Quantum Sensors

Direct measurement of the 7Be L/K capture ratio in Ta-based superconducting tunnel junctions

Limits on the Existence of sub-MeV Sterile Neutrinos from the Decay of $^{7}$ Be in Superconducting Quantum Sensors

Direct measurement of the $^{7}$ Be $L / K$ capture ratio in Ta-based superconducting tunnel junctions