First Result on the Neutrinoless Double- β Decay of Se82 with CUPID-0

We report the result of the search for neutrinoless double beta decay of Se82 obtained with CUPID-0, the first large array of scintillating ZnSe82 cryogenic calorimeters implementing particle identification. We observe no signal in a 1.83 kg yr Se82 exposure, and we set the most stringent lower limit on the 0νββ Se82 half-life T1/20ν>2.4×1024 yr (90% credible interval), which corresponds to an effective Majorana neutrino mass mββ