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 Zn\(^{82}\)Se scintillating calorimeters for about \(2 \times 10^{25}\) 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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Acknowledgements
This work was partially supported by the LUCIFER experiment, funded by ERC under the European Union’s Seventh Framework Programme (FP7/2007-2013)/ERC grant agreement n. 247115, funded within the ASPERA 2nd Common Call for R&D Activities. In particular we want to thank to M. Iannone for his help in the detector assembly, M. Guetti for the activity on the cryostat and He liquifier, the mechanical workshop of LNGS (E. Tatananni, A. Rotilio, A. Corsi, and B. Romualdi) for continuous and constructive help in the overall set-up design.
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Cardani, L. et al. (2018). CUPID-0: A Cryogenic Calorimeter with Particle Identification for Double Beta Decay Search. In: Liu, ZA. (eds) Proceedings of International Conference on Technology and Instrumentation in Particle Physics 2017. TIPP 2017. Springer Proceedings in Physics, vol 213. Springer, Singapore. https://doi.org/10.1007/978-981-13-1316-5_34
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DOI: https://doi.org/10.1007/978-981-13-1316-5_34
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