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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

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    10304 - Nuclear physics

Result continuities

  • Project

  • Continuities

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