Abstract

The CUPID-0 experiment searches for double beta decay using cryogenic calorimeters with double (heat and light) read-out. The detector, consisting of 24 ZnSe crystals 95\[\%\] enriched in \[^{82}\]Se and two natural ZnSe crystals, started data-taking in 2017 at Laboratori Nazionali del Gran Sasso. We present the search for the neutrino-less double beta decay of \[^{82}\]Se into the 0\[_1^+\], 2\[_1^+\] and 2\[_2^+\] excited states of \[^{82}\]Kr with an exposure of 5.74 kg\[\cdot \]yr (2.24\[\times \]10\[^{25}\] emitters\[\cdot \]yr). We found no evidence of the decays and set the most stringent limits on the widths of these processes: \[\varGamma \](\[^{82}\]Se \[\rightarrow ^{82}\]Kr\[_{0_1^+}\])8.55\[\times \]10\[^{-24}\] yr\[^{-1}\], \[\varGamma \] (\[^{82}\] Se \[\rightarrow ^{82}\] Kr \[_{2_1^+}\])\[\,{<}\,6.25 \,{\times }\,10^{-24}\] yr\[^{-1}\], \[\varGamma \](\[^{82}\]Se \[\rightarrow ^{82}\]Kr\[_{2_2^+}\])8.25\[\times \]10\[^{-24}\] yr\[^{-1}\] (90\[\%\] credible interval).

Details

Title
Search of the neutrino-less double beta decay of \[^{82}\] Se into the excited states of \[^{82}\] Kr with CUPID-0
Author
Azzolini, O 1 ; Barrera, M T 1 ; Beeman, J W 2 ; Bellini, F 3 ; Beretta, M 4 ; Biassoni, M 5 ; Bossio, E 5 ; Brofferio, C 4 ; Bucci, C 6 ; Canonica, L 7 ; Capelli, S 4 ; Cardani, L 8 ; Carniti, P 4 ; Casali, N 8 ; Cassina, L 4 ; Clemenza, M 4 ; Cremonesi, O 5 ; Cruciani, A 8 ; A D’Addabbo 9 ; Dafinei, I 8 ; S Di Domizio 10 ; Ferroni, F 3 ; Gironi, L 4 ; Giuliani, A 11 ; Gorla, P 6 ; Gotti, C 4 ; Keppel, G 1 ; Martinez, M 12 ; Morganti, S 8 ; Nagorny, S 13 ; Nastasi, M 4 ; Nisi, S 6 ; Nones, C 14 ; Orlandi, D 6 ; Pagnanini, L 4 ; Pallavicini, M 10 ; Palmieri, V 1 ; Pattavina, L 15 ; Pavan, M 4 ; Pessina, G 5 ; Pettinacci, V 3 ; Pirro, S 6 ; Pozzi, S 4 ; Previtali, E 5 ; Puiu, A 4 ; Rusconi, C 16 ; Schäffner, K 17 ; Tomei, C 8 ; Vignati, M 8 ; Zolotarova, A 14 

 INFN, Laboratori Nazionali di Legnaro, Legnaro, Padova, Italy 
 Materials Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA 
 Dipartimento di Fisica, Sapienza Università di Roma, Rome, Italy; INFN, Sezione di Roma, Rome, Italy 
 Dipartimento di Fisica, Università di Milano-Bicocca, Milan, Italy; INFN, Sezione di Milano Bicocca, Milan, Italy 
 INFN, Sezione di Milano Bicocca, Milan, Italy 
 INFN, Laboratori Nazionali del Gran Sasso, L’Aquila, Italy 
 INFN, Laboratori Nazionali del Gran Sasso, L’Aquila, Italy; Max-Planck-Institut für Physik, Munich, Germany 
 INFN, Sezione di Roma, Rome, Italy 
 INFN, Laboratori Nazionali del Gran Sasso, L’Aquila, Italy; Gran Sasso Science Institute, L’Aquila, Italy 
10  Dipartimento di Fisica, Università di Genova, Genoa, Italy; INFN, Sezione di Genova, Genoa, Italy 
11  CSNSM, Univ. Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, Orsay, France; DiSAT, Università dell’Insubria, Como, Italy 
12  Dipartimento di Fisica, Sapienza Università di Roma, Rome, Italy; INFN, Sezione di Roma, Rome, Italy; Fundacion ARAID and U. Zaragoza, Zaragoza, Spain 
13  INFN, Laboratori Nazionali del Gran Sasso, L’Aquila, Italy; Gran Sasso Science Institute, L’Aquila, Italy; Queen’s University, Kingston, ON, Canada 
14  IRFU, CEA, Université Paris-Saclay, Gif-sur-Yvette, France 
15  INFN, Laboratori Nazionali del Gran Sasso, L’Aquila, Italy; Gran Sasso Science Institute, L’Aquila, Italy; Physik Department, Technische Universität München, Garching, Germany 
16  INFN, Laboratori Nazionali del Gran Sasso, L’Aquila, Italy; Department of Physics and Astronomy, University of South Carolina, Columbia, SC, USA 
17  Gran Sasso Science Institute, L’Aquila, Italy 
First page
1
Publication year
2018
Publication date
Nov 2018
Publisher
Springer Nature B.V.
ISSN
14346044
e-ISSN
14346052
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2127708858
Copyright
The European Physical Journal C is a copyright of Springer, (2018). All Rights Reserved., © 2018. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.