Final result of CUPID-0 phase-I in the search for the $^{82}$Se Neutrinoless Double Beta Decay
| Autor: | Azzolini, O., Beeman, J.W., Bellini, F., Beretta, M., Biassoni, M., Brofferio, C., Bucci, C., Capelli, S., Cardani, L., Carniti, P., Casali, N., Chiesa, D., Clemenza, M., Cremonesi, O., Cruciani, A., Dafinei, I., Di 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., Schäffner, K., Tomei, C., Vignati, M., Zolotarova, A.S. |
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| Přispěvatelé: | 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, CUPID |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Physics - Instrumentation and Detectors
Atomic Physics (physics.atom-ph) FOS: Physical sciences [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex] neutrinoless double beta decay crystal High Energy Physics - Experiment Physics - Atomic Physics High Energy Physics - Experiment (hep-ex) bolometer double-beta decay: (0neutrino) calorimeter [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det] Nuclear Experiment (nucl-ex) Nuclear Experiment scintillation counter Nuclear Physics S076H0N CUORE background nucleus Instrumentation and Detectors (physics.ins-det) sensitivity $Zn^{82}$S scintillating cryogenic calorimeters [PHYS.PHYS.PHYS-GEN-PH]Physics [physics]/Physics [physics]/General Physics [physics.gen-ph] Gran Sasso lepton number violation efficiency S076MW experimental results |
| Zdroj: | Phys.Rev.Lett. Phys.Rev.Lett., 2019, 123 (3), pp.032501. ⟨10.1103/PhysRevLett.123.032501⟩ Physical Review Letters Physical Review Letters, American Physical Society, 2019, 123 (3), pp.032501. ⟨10.1103/PhysRevLett.123.032501⟩ |
| ISSN: | 0031-9007 1079-7114 |
| DOI: | 10.1103/PhysRevLett.123.032501⟩ |
| Popis: | CUPID-0 is the first pilot experiment of CUPID, a next-generation project for the measurement of neutrinoless double beta decay (0$\nu$DBD) with scintillating bolometers. The detector, consisting of 24 enriched and 2 natural ZnSe crystals, has been taking data at Laboratori Nazionali del Gran Sasso from June 2017 to December 2018, collecting a $^{82}$Se exposure of 5.29 kg$\times$yr. In this paper we present the phase-I results in the search for 0$\nu$DBD. We demonstrate that the technology implemented by CUPID-0 allows us to reach the lowest background for calorimetric experiments: $(3.5^{+1.0}_{-0.9})\times10^{-3}$ counts/(keV kg yr). Monitoring 3.88$\times$10$^{25}$ $^{82}$Se nuclei$\times$yr we reach a 90% credible interval median sensitivity of $\rm{T}^{0\nu}_{1/2}>5.0\times10^{24} \rm{yr}$ and set the most stringent limit on the half-life of $^{82}$Se 0$\nu$DBD : $\rm{T}^{0\nu}_{1/2}>3.5\times10^{24} \rm{yr}$ (90% credible interval), corresponding to m$_{\beta\beta} Comment: 6 pages, 3 figures |
| Databáze: | OpenAIRE |
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