Neutrino mass measurement with 187Re and 163Ho in the framework of MARE

Abstract

In the last decades, neutrino oscillation experiments have provided the evidence of a non-vanishing neutrino mass leading to a new physics beyond the Standard Model (SM). The difficulty in detecting and studying them explains why the neutrinos are the object of many experiments dedicated to determine their mass and nature. The experiments dedicated to effective electron-neutrino mass determination are the ones based on kinematic analysis of electrons emitted in single β-decay. In this context the MARE experiment aiming at the direct and calorimetric measurement of the electron neutrino mass with sub-eV sensitivity has born. Although the baseline of the MARE project is based on large arrays of rhenium thermal detectors, the MARE collaboration is considering the possibility to use 163Ho electron capture (EC). This contribution gives an outlook of the neutrino mass measurement with 187Re and 163Ho in the framework of MARE.