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.
Cardani, L., Artusa, D., Azzolini, O., Barrera, M., Beeman, J., Bellini, F., et al. (2018). CUPID-0: A cryogenic calorimeter with particle identification for double beta decay search. In Proceedings of International Conference on Technology and Instrumentation in Particle Physics 2017 (pp.183-186). Springer Science and Business Media, LLC [10.1007/978-981-13-1316-5_34].
CUPID-0: A cryogenic calorimeter with particle identification for double beta decay search
Beretta, M;Biassoni, M;Brofferio, C;Capelli, S;Carniti, P;Cassina, L;Clemenza, M;Cremonesi, O;Gironi, L;Gotti, C;Nastasi, M;Pagnanini, L;Pavan, M;Pessina, G;Pozzi, S;Previtali, E;Puiu, A;Sinkunaite, L;
2018
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.
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