CUPID-0 is the first large mass neutrino-less double beta decay (0νββ) experiment based on cryogenic calorimeters with dual read-out of light and heat for background rejection. The detector assembly, consisting of 26 ZnSe crystals, 2 natural and 24 enriched at 95% in 82Se, all coupled with bolometric light detectors, has been constructed respecting very strict protocols and procedures, from the material selection during crystal growth to the new and innovative detector framework, in the attempt to achieve the best performance of the array. The successful construction of the detector lead to promising preliminary results, here presented. The array is in fact taking data underground at LNGS (Italy) since March 2017 and the particle identification, enabled by the light read-out, provides an unprecedented background level, for cryogenic calorimeters, of only 3.2 countskeV−1t−1yr−1 in the region of interest of the 0νββ search for 82Se, namely around 3 MeV.

Azzolini, O., Beeman, J., Bellini, F., Beretta, M., Biassoni, M., Brofferio, C., et al. (2020). CUPID-0: A double-readout cryogenic detector for Double Beta Decay search. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH. SECTION A, ACCELERATORS, SPECTROMETERS, DETECTORS AND ASSOCIATED EQUIPMENT, 958 [10.1016/j.nima.2019.162441].

CUPID-0: A double-readout cryogenic detector for Double Beta Decay search

Beretta, M.;Biassoni, M.;Brofferio, C.
Membro del Collaboration Group
;
Capelli, S.;Carniti, P.;Chiesa, D.;Clemenza, M.;Cremonesi, O.;Gironi, L.;Gotti, C.;Nastasi, M.;Pagnanini, L.;Pattavina, L.;Pavan, M.;Pessina, G.;Pozzi, S.;Previtali, E.;Puiu, A.;
2020

Abstract

CUPID-0 is the first large mass neutrino-less double beta decay (0νββ) experiment based on cryogenic calorimeters with dual read-out of light and heat for background rejection. The detector assembly, consisting of 26 ZnSe crystals, 2 natural and 24 enriched at 95% in 82Se, all coupled with bolometric light detectors, has been constructed respecting very strict protocols and procedures, from the material selection during crystal growth to the new and innovative detector framework, in the attempt to achieve the best performance of the array. The successful construction of the detector lead to promising preliminary results, here presented. The array is in fact taking data underground at LNGS (Italy) since March 2017 and the particle identification, enabled by the light read-out, provides an unprecedented background level, for cryogenic calorimeters, of only 3.2 countskeV−1t−1yr−1 in the region of interest of the 0νββ search for 82Se, namely around 3 MeV.
Articolo in rivista - Articolo scientifico
neutrino-less double beta decay; ZnSe; scintillating cryogenic calorimeters; macro-bolometers
English
31-lug-2019
2020
958
162441
none
Azzolini, O., Beeman, J., Bellini, F., Beretta, M., Biassoni, M., Brofferio, C., et al. (2020). CUPID-0: A double-readout cryogenic detector for Double Beta Decay search. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH. SECTION A, ACCELERATORS, SPECTROMETERS, DETECTORS AND ASSOCIATED EQUIPMENT, 958 [10.1016/j.nima.2019.162441].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/239998
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