CUPID-0, challenges and achievements in the struggle of 0-background double-beta decay experiments
The background is the key issue of any experiment searching for the neutrinoless double beta decay (0?DBD) and one of the possible solutions is the use of high resolution detectors in which background can be actively discriminated. CUPID-0 is the first 0?DBD experiment based on scintillating bolometers able to perform efficient particle identification allowing for background reduction at the unprecedented level of ?10?3 cts/(keV?kg?yr).