Most Stringent Bound on Electron Neutrino Mass Obtained with a Scalable Low-Temperature Microcalorimeter Array

Article published in Physical Review Letters with an Editor's Suggestion

The most important result from the international HOLMES project, dedicated to the direct measurement of neutrino mass, has been published in Physical Review Letters with an Editor's Suggestion.

HOLMES uses an innovative approach based on the study of the electron capture decay of the isotope holmium-163, observed with ultra-low-temperature superconducting microcalorimeters. Using this technique, the experiment has established the most stringent limit ever obtained on the electron neutrino mass using a calorimetric approach, demonstrating the feasibility of a promising path for the future.