Double beta decay search with CUPID-0: Results and Perspectives
- Cardani, Laura
- Azzolini, Oscar
- Barrera, M.T.
- Beeman, Jeff W.
- Bellini, Fabio
- Beretta, Mattia
- Biassoni, Matteo
- Brofferio, Chiara
- Bucci, Carlo
- Canonica, Lucia
- Capelli, Silvia
- Carniti, Paolo
- Casali, Nicola
- Cassina, Luigi
- Clemenza, Massimiliano
- Cremonesi, Oliviero
- Cruciani, Angelo
- d'Addabbo, Antonello
- Dafinei, Ioan
- Di Domizio, Sergio
- Ferroni, Fernando
- Gironi, Luca
- Giuliani, Andrea
- Gorla, Paolo
- Gotti, Claudio
- Keppel, Giorgio
- Martinez, Maria
- Morganti, Silvio
- Nagorny, Serge
- Nastasi, Massimiliano
- Nisi, Stefano
- Nones, Claudia
- Orlandi, Donato
- Pagnanini, Lorenzo
- Pallavicini, Marco
- Palmieri, Vincenzo
- Pattavina, Luca
- Pavan, Maura
- Pessina, Gianluigi
- Pettinacci, Valerio
- Pirro, Stefano
- Pozzi, Stefano
- Previtali, Ezio
- Puiu, Andrei
- Rusconi, Claudia
- Schaeffner, Karoline
- Tomei, Claudia
- Vignati, Marco
- Zolotarova, Anastasia
DOIAbstract
International audienceCUPID-0 is the first large mass experiment based on cryogenic calorimeters (bolometers) that implements the dual read-out of light and heat for background rejection. The detector, consisting of 24 enriched Zn$^{82}$Se crystals (5.28 kg of $^{82}$Se), is taking data in the underground LNGS (Italy) from March 2017. In this contribution we present the analysis that allowed to set the most stringent limit on the half-life of neutrino-less double beta decay of $^{82}$Se. We prove that the particle identification, enabled by the simultaneous read-out of heat and light, provides an unprecedented background level for cryogenic calorimeters of few 10$^{−3}$ counts/keV/kg/y. Finally, we discuss the impact of these results on nex...
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