1. Search of the neutrino-less double beta decay of $^{82}$Se into the excited states of $^{82}$Kr with CUPID-0
- Author
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Azzolini, O., Barrera, M.T., Beeman, J.W., 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., Di Domizio, S., 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., Centre de Sciences Nucléaires et de Sciences de la Matière (CSNSM), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-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, and CUPID
- Subjects
Physics - Instrumentation and Detectors ,Physics::Instrumentation and Detectors ,FOS: Physical sciences ,scintillation detector ,[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex] ,energy: transition ,crystal ,isotope enrichment ,double-beta decay: (0neutrino) ,excited state ,detector: energy resolution ,[PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det] ,Nuclear Experiment (nucl-ex) ,Nuclear Experiment ,S076H0N ,excited state: energy ,double-beta decay ,nucleus: many-body problem ,Instrumentation and Detectors (physics.ins-det) ,Double beta decay ,Gran Sasso ,electron: spectrum ,Automatic Keywords ,selenium: semileptonic decay ,calorimeter: cryogenics ,scintillation counter: crystal ,High Energy Physics::Experiment ,bolometers ,experimental results - Abstract
International audience; 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$_{2_1^+}$ ) $\,{
- Published
- 2018
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