The CUPID-Mo experiment for neutrinoless double-beta decay: performance and prospects
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A90107%2F20%3A00344140" target="_blank" >RIV/68407700:90107/20:00344140 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1140/epjc/s10052-019-7578-6" target="_blank" >https://doi.org/10.1140/epjc/s10052-019-7578-6</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1140/epjc/s10052-019-7578-6" target="_blank" >10.1140/epjc/s10052-019-7578-6</a>
Alternative languages
Result language
angličtina
Original language name
The CUPID-Mo experiment for neutrinoless double-beta decay: performance and prospects
Original language description
CUPID-Mo is a bolometric experiment to search for neutrinoless double-beta decay (0νββ) of 100Mo. In this article, we detail the CUPID-Mo detector concept, assembly and installation in the Modane underground laboratory, providing results from the first datasets. The CUPID-Mo detector consists of an array of 20 100Mo-enriched 0.2 kg Li2MoO4 crystals operated as scintillating bolometers at ~20 mK. The Li2MoO4 crystals are complemented by 20 thin Ge optical bolometers to reject α events by the simultaneous detection of heat and scintillation light. We observe a good detector uniformity and an excellent energy resolution of 5.3 keV (6.5 keV) FWHM at 2615 keV, in calibration (physics) data. Light collection ensures the rejection of α particles at a level much higher than 99.9% – with equally high acceptance for γ/β events – in the region of interest for 100Mo 0νββ. We present limits on the crystals’ radiopurity: <=3 μBq/kg of 226Ra and <=2 μBq/kg of 232Th. We discuss the science reach of CUPID-Mo, which can set the most stringent half-life limit on the 100Mo 0νββ decay in half-a-year’s livetime. The achieved results show that CUPID-Mo is a successful demonstrator of the technology developed by the LUMINEU project and subsequently selected for the CUPID experiment, a proposed follow-up of CUORE, the currently running first tonne-scale bolometric 0νββ experiment.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10304 - Nuclear physics
Result continuities
Project
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Continuities
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Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
European Physical Journal C
ISSN
1434-6044
e-ISSN
1434-6052
Volume of the periodical
80
Issue of the periodical within the volume
44
Country of publishing house
DE - GERMANY
Number of pages
15
Pages from-to
1-15
UT code for WoS article
000615170700001
EID of the result in the Scopus database
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