1. Search for neutrinoless double beta decay of $$^{64}$$Zn and $$^{70}$$Zn with CUPID-0
- Author
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P. Gorla, F. Ferroni, C. Tomei, Massimiliano Clemenza, L. Pattavina, L. Pagnanini, M. Beretta, S. Di Domizio, K. Schäffner, Claudio Gotti, Stefano Nisi, Paolo Carniti, Laura Cardani, Oliviero Cremonesi, Massimiliano Nastasi, Stefano Pozzi, C. Brofferio, A. S. Zolotarova, S. Pirro, M. Vignati, C. Rusconi, A. D'Addabbo, N. Casali, Angelo Cruciani, Ezio Previtali, Simone Capelli, G. Keppel, Davide Chiesa, Jeffrey W. Beeman, Marco Pallavicini, D. Orlandi, G. Pessina, E. Celi, A. Giuliani, C. Nones, A. Puiu, V. Pettinacci, M. Pavan, I. Dafinei, O. Azzolini, L. Gironi, F. Bellini, M. Biassoni, S.S. Nagorny, C. Bucci, Miriam Lucio Martinez, Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Azzolini, O, Beeman, J, Bellini, F, Beretta, M, Biassoni, M, Brofferio, C, Bucci, C, Capelli, S, Cardani, L, Celi, E, Carniti, P, Casali, N, Chiesa, D, Clemenza, M, Cremonesi, O, Cruciani, A, D'Addabbo, A, Dafinei, I, Domizio, S, Ferroni, F, Gironi, L, Giuliani, A, Gorla, P, Gotti, C, Keppel, G, Martinez, M, Nagorny, S, Nastasi, M, Nisi, S, Nones, C, Orlandi, D, Pagnanini, L, Pallavicini, M, Pattavina, L, Pavan, M, Pessina, G, Pettinacci, V, Pirro, S, Pozzi, S, Previtali, E, Puiu, A, Rusconi, C, Schaffner, K, Tomei, C, Vignati, M, and Zolotarova, A
- Subjects
neutrinoless double beta decay, scintillating bolometers ,Particle physics ,Physics - Instrumentation and Detectors ,Physics and Astronomy (miscellaneous) ,Electron capture ,FOS: Physical sciences ,electron: capture ,[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex] ,01 natural sciences ,isotope enrichment ,bolometer ,double-beta decay: (0neutrino) ,Double beta decay ,0103 physical sciences ,Beta (velocity) ,[PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det] ,Nuclear Experiment (nucl-ex) ,010306 general physics ,Nuclear Experiment ,Engineering (miscellaneous) ,scintilla- tion detector ,Physics ,010308 nuclear & particles physics ,Instrumentation and Detectors (physics.ins-det) ,Gran Sasso ,zinc: selenium ,calorimeter: cryogenics ,cryogenic calorimeter ,scintillation counter: crystal ,selenium: nuclide ,bolometers ,experimental results - Abstract
CUPID-0 is the first pilot experiment of CUPID, a next-generation project searching for neutrinoless double beta decay. In its first scientific run, CUPID-0 operated 26 ZnSe cryogenic calorimeters coupled to light detectors in the underground Laboratori Nazionali del Gran Sasso. In this work, we analyzed a ZnSe exposure of 11.34 kg year to search for the neutrinoless double beta decay of $$^{70}$$70Zn and for the neutrinoless positron-emitting electron capture of $$^{64}$$64Zn. We found no evidence for these decays and set 90$$\%$$% credible interval limits of $$\hbox {T}_{1/2}^{0\nu \beta \beta }$$T1/20νββ($$^{70}$$70Zn) > 1.6 $$10^{21}$$1021 year and $$\hbox {T}_{1/2}^{0\nu EC \beta +}$$T1/20νECβ+($$^{64}$$64Zn) > 1.2$$\times 10^{22}$$×1022 year, surpassing by more than one order of magnitude the previous experimental results (Belli et al. in J Phys G 38(11):115107, https://doi.org/10.1088/0954-3899/38/11/115107, 2011).
- Published
- 2020
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