CUPID-0: the first array of enriched scintillating bolometers for 0 [Formula: see text] decay investigations

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

doi:10.1140/epjc/s10052-018-5896-8

CUPID-0: the first array of enriched scintillating bolometers for 0 $ν β β$ decay investigations

Eur Phys J C Part Fields. 2018;78(5):428. doi: 10.1140/epjc/s10052-018-5896-8. Epub 2018 May 29.

Authors

O Azzolini¹, M T Barrera¹, J W Beeman², F Bellini^{3

4}, M Beretta^{5

6}, M Biassoni⁶, C Brofferio^{5

6}, C Bucci⁷, L Canonica^{7

8

9}, S Capelli^{5

6}, L Cardani⁴, P Carniti^{5

6}, N Casali⁴, L Cassina^{5

6}, M Clemenza^{5

6}, O Cremonesi⁶, A Cruciani^{3

4}, A D'Addabbo⁷, I Dafinei⁴, S Di Domizio^{10

11}, F Ferroni^{3

4}, L Gironi^{5

6}, A Giuliani^{12

13}, P Gorla⁷, C Gotti^{5

6}, G Keppel¹, M Martinez^{3

4}, S Morganti⁴, S Nagorny^{7

14}, M Nastasi^{5

6}, S Nisi⁷, C Nones¹⁵, D Orlandi⁷, L Pagnanini^{7

14}, M Pallavicini^{10

11}, V Palmieri¹, L Pattavina^{7

14}, M Pavan^{5

6}, G Pessina⁶, V Pettinacci^{3

4}, S Pirro⁷, S Pozzi^{5

6}, E Previtali⁶, A Puiu^{5

6}, F Reindl^{4

16

17}, C Rusconi^{7

18}, K Schäffner^{7

14}, C Tomei⁴, M Vignati⁴, A Zolotarova¹⁵

Affiliations

¹ 1INFN, Laboratori Nazionali di Legnaro, 35020 Legnaro, Padua Italy.
² 2Materials Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720 USA.
³ 3Dipartimento di Fisica, Sapienza Università di Roma, 00185 Rome, Italy.
⁴ 4INFN, Sezione di Roma, 00185 Rome, Italy.
⁵ 5Dipartimento di Fisica, Università di Milano-Bicocca, 20126 Milan, Italy.
⁶ 6INFN, Sezione di Milano Bicocca, 20126 Milan, Italy.
⁷ 7INFN, Laboratori Nazionali del Gran Sasso, Assergi, 67010 L'Aquila, Italy.
⁸ 8Massachusetts Institute of Technology, Cambridge, MA 02139 USA.
⁹ 16Present Address: Max-Planck-Institut fur Physik, 80805 Munich, Germany.
¹⁰ 9Dipartimento di Fisica, Università di Genova, 16146 Genoa, Italy.
¹¹ 10INFN, Sezione di Genova, 16146 Genoa, Italy.
¹² 11CSNSM, Univ. Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, 91405 Orsay, France.
¹³ 12DiSAT, Università dell'Insubria, 22100 Como, Italy.
¹⁴ 13Gran Sasso Science Institute, 67100 L'Aquila, Italy.
¹⁵ CEA-Saclay, DSM/IRFU, 91191 Gif-sur-Yvette Cedex, France.
¹⁶ Institut fur Hochenergiephysik der AW, 1050 Wien, Austria.
¹⁷ 18Atominstitut, Technical University Vienna, 1020 Wien, Austria.
¹⁸ 15Department of Physics and Astronomy, University of South Carolina, Columbia, SC 29208 USA.

Abstract

The CUPID-0 detector hosted at the Laboratori Nazionali del Gran Sasso, Italy, is the first large array of enriched scintillating cryogenic detectors for the investigation of $^{82}$ Se neutrinoless double-beta decay ( $0 ν β β$ ). CUPID-0 aims at measuring a background index in the region of interest (RoI) for $0 ν β β$ at the level of 10 $^{- 3}$ counts/(keV kg years), the lowest value ever measured using cryogenic detectors. CUPID-0 operates an array of Zn $^{82}$ Se scintillating bolometers coupled with bolometric light detectors, with a state of the art technology for background suppression and thorough protocols and procedures for the detector preparation and construction. In this paper, the different phases of the detector design and construction will be presented, from the material selection (for the absorber production) to the new and innovative detector structure. The successful construction of the detector lead to promising preliminary detector performance which is discussed here.