Data analysis in β-spectroscopy with cryogenic detectors

In the environment of the “Manu” experiment for the electron anti-neutrino mass determination with microcalorimeters, we developed a full system to analyze data and extract sensible results. Here we report on data simulation and analysis. We show that, with a single detector with the energy resolution we obtained up to now (15 eV RMS) and a rate of 1 Hz, we may put an upper limit to the electron anti-neutrino mass of the order of 20 eV at 95% C.L. in three months of data taking.