Background model of the CUPID-0 experiment
| Autor: | C. Nones, Davide Chiesa, M. Biassoni, P. Gorla, F. Ferroni, M. Clemenza, A. Cruciani, Claudio Gotti, L. Pattavina, A. Giuliani, L. Pagnanini, A. S. Zolotarova, Oliviero Cremonesi, S. Di Domizio, C. Bucci, O. Azzolini, Paolo Carniti, F. Bellini, C. Brofferio, Claudia Tomei, Ioan Dafinei, A. Puiu, Stefano Pozzi, M. Pavan, L. Gironi, C. Rusconi, N. Casali, S.S. Nagorny, M. Vignati, Silvia Capelli, Massimiliano Nastasi, K. Schäffner, M. I. Martínez, Marco Pallavicini, V. Pettinacci, G. Pessina, L. Cardani, S. Nisi, Stefano Pirro, G. Keppel, J. W. Beeman, D. Orlandi, M. Beretta, Ezio Previtali |
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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, Azzolini, O, Beeman, J, 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, 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, Zolotarova, A |
| Rok vydání: | 2019 |
| Předmět: |
Particle physics
Physics - Instrumentation and Detectors experimental methods Physics and Astronomy (miscellaneous) Bolometer background: model FOS: Physical sciences chemistry.chemical_element lcsh:Astrophysics helium [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex] Rare Event neutrino less double beta decay 01 natural sciences thermal law.invention double-beta decay: (0neutrino) temperature: low law Double beta decay lcsh:QB460-466 0103 physical sciences calorimeter lcsh:Nuclear and particle physics. Atomic energy. Radioactivity [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det] Nuclear Experiment (nucl-ex) Neutrinos Double Beta Decay 010306 general physics Nuclear Experiment Engineering (miscellaneous) scintillation counter Helium Physics Range (particle radiation) 010308 nuclear & particles physics Instrumentation and Detectors (physics.ins-det) Background model Gran Sasso Calorimeter chemistry Scintillation counter lcsh:QC770-798 bolometers Neutrino Energy (signal processing) |
| Zdroj: | European Physical Journal C: Particles and Fields European Physical Journal C: Particles and Fields, Springer Verlag (Germany), 2019, 79 (7), pp.583. ⟨10.1140/epjc/s10052-019-7078-8⟩ Eur.Phys.J.C Eur.Phys.J.C, 2019, 79 (7), pp.583. ⟨10.1140/epjc/s10052-019-7078-8⟩ European Physical Journal Zaguán: Repositorio Digital de la Universidad de Zaragoza Universidad de Zaragoza European Physical Journal C: Particles and Fields, Vol 79, Iss 7, Pp 1-16 (2019) Zaguán. Repositorio Digital de la Universidad de Zaragoza instname |
| ISSN: | 1434-6052 1434-6044 |
| DOI: | 10.1140/epjc/s10052-019-7078-8 |
| Popis: | CUPID-0 is the first large mass array of enriched Zn$^{82}$Se scintillating low temperature calorimeters, operated at LNGS since 2017. During its first scientific runs, CUPID-0 collected an exposure of 9.95 kg yr. Thanks to the excellent rejection of $\alpha$ particles, we attained the lowest background ever measured with thermal detectors in the energy region where we search for the signature of $^{82}$Se neutrinoless double beta decay. In this work we develop a model to reconstruct the CUPID-0 background over the whole energy range of experimental data. We identify the background sources exploiting their distinctive signatures and we assess their extremely low contribution (down to $\sim10^{-4}$ counts/(keV kg yr)) in the region of interest for $^{82}$Se neutrinoless double beta decay search. This result represents a crucial step towards the comprehension of the background in experiments based on scintillating calorimeters and in next generation projects such as CUPID. Comment: This is a post-peer-review, pre-copyedit version of an article published in Eur. Phys. J. C. The final authenticated version is available online at: https://doi.org/10.1140/epjc/s10052-019-7078-8 |
| Databáze: | OpenAIRE |
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