The LUCIFER/CUPID-0 demonstrator: searching for the neutrinoless double-beta decay with Zn⁸²Se scintillating bolometers

Neutrino–nuclear responses for astro-neutrinos, single beta decays and double beta decays

“…The largest experiment of this type is CUORE [705], focusing on 130 Te using TeO 2 crystals. Several other cryobolometer approaches are studied worldwide, for example there is LUCIFER/ CUPID-0 using ZnSe ( 82 Se) [706], and AMoRE with CaMoO 4 ( 100 Mo) [707], where still a lot of additional R&D is done. For recent reviews on this topic see [18,23,708].…”

Nuclear and Detector Sensitivities for Neutrinoless Double Beta-Decay Experiments

“…Cryogenic 82 Se-and 100 Mo-bolometers with both thermal and scintillation signals are promising detectors with high-energy resolution and low-BG rate (see Refs. [15][16][17][18]).…”

Main features of detectors and isotopes to investigate double beta decay with increased sensitivity

“…The enriched isotopes that have been used so far have been produced mainly in Russia (or in the Soviet Union) and in small quantities in the United States. Recently, for the LUCIFER experiment [105], ∼ 15 kg of enriched 82 Se were produced in the European Union (URENCO, Netherlands). The usual level of enrichment is ∼ 90-95%, since the price of isotopes with an enrichment level of 99% or more sharply increases.…”

“…All this allows us to hope for the successful implementation of projects such as CUPID and AMORE in the future. At present, the prototypes CUPID-0/Se [105], CUPID-0/Mo [106] and AMORE-I [107] are working (or ready to be started). Main goal of these prototypes is to demonstrate good enough parameters of using detectors and the possibility to reach background level of ∼ (10 −3 − 10 −4 ) c/keV×kg×yr.…”

“…obtaining enriched selenium with a low content of radioactive impurities ( 214 Bi < 0.11 mBq/kg and 208 Tl < 0.04 mBq/kg [105]) Table 9. The number of nuclei in 10 tons of isotope and the number of decays after 10 years of measurement (for T 1/2 = 10 29 yr).…”