CUPID-0: A cryogenic calorimeter with particle identification for double beta decay search

Cardani, L.; Artusa, D. R.; Azzolini, O.; Barrera, M. T.; Beeman, J. W.; Bellini, F.; Beretta, M.; Biassoni, M.; Brofferio, C.; Bucci, C.; Camacho, A.; Canonica, L.; Capelli, S.; Carniti, P.; Casali, N.; Cassina, L.; Clemenza, M.; Cremonesi, O.; Cruciani, A.; D’Addabbo, A.; Dafinei, I.; Di Domizio, S.; di Vacri, M. L.; Ferroni, F.; Gironi, L.; Giuliani, A.; Gorla, P.; Gotti, C.; Keppel, G.; Maino, M.; Martinez, M.; Morganti, S.; Nagorny, S.; Nastasi, M.; Nisi, S.; Nones, C.; Orio, F.; Orlandi, D.; Pagnanini, L.; Pallavicini, M.; Palmieri, V.; Pattavina, L.; Pavan, M.; Pessina, G.; Pettinacci, V.; Pirro, S.; Pozzi, S.; Previtali, E.; Puiu, A.; Reindl, F.; Rusconi, C.; Schaeffner, K.; Sinkunaite, L.; Tomei, C.; Vignati, M.; Zolotarova, A.

doi:10.1007/978-981-13-1316-5_34

With their excellent energy resolution, efficiency, and intrinsic radio-purity, cryogenic calorimeters are primed for the search of neutrino-less double beta decay (0nDBD). The sensitivity of these devices could be further increased by discriminating the dominant alpha background from the expected beta-like signal. The CUPID-0 collaboration aims at demonstrating that the measurement of the scintillation light produced by the absorber crystals allows for particle identification and, thus, for a complete rejection of the alpha background. The CUPID-0 detector, assembled in 2016 and now in data-taking, consists of 26 Zn82 Se scintillating calorimeters for about 2 × 1025 0nDBD emitters. In this contribution we present the preliminary results obtained with the detector and the perspectives for a next generation project.

CUPID-0: A cryogenic calorimeter with particle identification for double beta decay search

Cardani, L.;Artusa, D. R.;Azzolini, O.;Barrera, M. T.;Beeman, J. W.;Bellini, F.;Beretta, M.;Biassoni, M.;Brofferio, C.;Bucci, C.;Camacho, A.;Canonica, L.;Capelli, S.;Carniti, P.;Casali, N.;Cassina, L.;Clemenza, M.;Cremonesi, O.;Cruciani, A.;D’Addabbo, A.;Dafinei, I.;Di Domizio, S.;di Vacri, M. L.;Ferroni, F.;Gironi, L.;Giuliani, A.;Gorla, P.;Gotti, C.;Keppel, G.;Maino, M.;Martinez, M.;Morganti, S.;Nagorny, S.;Nastasi, M.;Nisi, S.;Nones, C.;Orio, F.;Orlandi, D.;Pagnanini, L.;Pallavicini, M.;Palmieri, V.;Pattavina, L.;Pavan, M.;Pessina, G.;Pettinacci, V.;Pirro, S.;Pozzi, S.;Previtali, E.;Puiu, A.;Reindl, F.;Rusconi, C.;Schaeffner, K.;Sinkunaite, L.;Tomei, C.;Vignati, M.;Zolotarova, A.

2018-01-01

Abstract

With their excellent energy resolution, efficiency, and intrinsic radio-purity, cryogenic calorimeters are primed for the search of neutrino-less double beta decay (0nDBD). The sensitivity of these devices could be further increased by discriminating the dominant alpha background from the expected beta-like signal. The CUPID-0 collaboration aims at demonstrating that the measurement of the scintillation light produced by the absorber crystals allows for particle identification and, thus, for a complete rejection of the alpha background. The CUPID-0 detector, assembled in 2016 and now in data-taking, consists of 26 Zn82 Se scintillating calorimeters for about 2 × 1025 0nDBD emitters. In this contribution we present the preliminary results obtained with the detector and the perspectives for a next generation project.