Analysis of cryogenic calorimeters with light and heat read-out for double beta decay searches.
- Author(s): Azzolini, O
- Barrera, MT
- Beeman, JW
- Bellini, F
- Beretta, M
- Biassoni, M
- Bossio, E
- Brofferio, C
- Bucci, C
- Canonica, L
- Capelli, S
- Cardani, L
- Carniti, P
- Casali, N
- Cassina, L
- Clemenza, M
- Cremonesi, O
- Cruciani, A
- D'Addabbo, A
- Dafinei, I
- Domizio, S Di
- Ferroni, F
- Gironi, L
- Giuliani, A
- Gorla, P
- Gotti, C
- Keppel, G
- Martinez, M
- Morganti, S
- Nagorny, S
- Nastasi, M
- Nisi, S
- Nones, C
- Orlandi, D
- Pagnanini, L
- Pallavicini, M
- Palmieri, V
- Pattavina, L
- Pavan, M
- Pessina, G
- Pettinacci, V
- Pirro, S
- Pozzi, S
- Previtali, E
- Puiu, A
- Rusconi, C
- Schäffner, K
- Tomei, C
- Vignati, M
- Zolotarova, A
- et al.
Published Web Location
https://doi.org/10.1140/epjc/s10052-018-6202-5Abstract
The suppression of spurious events in the region of interest for neutrinoless double beta decay will play a major role in next generation experiments. The background of detectors based on the technology of cryogenic calorimeters is expected to be dominated by α particles, that could be disentangled from double beta decay signals by exploiting the difference in the emission of the scintillation light. CUPID-0, an array of enriched Zn 82 Se scintillating calorimeters, is the first large mass demonstrator of this technology. The detector started data-taking in 2017 at the Laboratori Nazionali del Gran Sasso with the aim of proving that dual read-out of light and heat allows for an efficient suppression of the α background. In this paper we describe the software tools we developed for the analysis of scintillating calorimeters and we demonstrate that this technology allows to reach an unprecedented background for cryogenic calorimeters.