Final results on the 0 nu beta beta decay half-life limit of Mo-100 from the CUPID-Mo experiment
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A90107%2F22%3A00363776" target="_blank" >RIV/68407700:90107/22:00363776 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1140/epjc/s10052-022-10942-5" target="_blank" >https://doi.org/10.1140/epjc/s10052-022-10942-5</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1140/epjc/s10052-022-10942-5" target="_blank" >10.1140/epjc/s10052-022-10942-5</a>
Alternative languages
Result language
angličtina
Original language name
Final results on the 0 nu beta beta decay half-life limit of Mo-100 from the CUPID-Mo experiment
Original language description
The CUPID-Mo experiment to search for 0 nu beta beta decay in Mo-100 has been recently completed after about 1.5 years of operation at Laboratoire Souterrain de Modane (France). It served as a demonstrator for CUPID, a next generation 0 nu beta beta decay experiment. CUPID-Mo was comprised of 20 enriched Li-2 (MoO4)-Mo-100 scintillating calorimeters, each with a mass of similar to 0.2 kg, operated at similar to 20 mK. We present here the final analysis with the full exposure of CUPID-Mo (Mo-100 exposure of 1.47 kg x year) used to search for lepton number violation via 0 nu beta beta decay. We report on various analysis improvements since the previous result on a subset of data, reprocessing all data with these new techniques. We observe zero events in the region of interest and set a new limit on the Mo-100 0 nu beta beta decay half-life of T-1/2(0 nu) > 1.8 x 10(24) year (stat. + syst.) at 90% CI. Under the light Majorana neutrino exchange mechanism this corresponds to an effective Majorana neutrino mass of < m(beta beta)> < (0.28-0.49) eV, dependent upon the nuclear matrix element utilized.
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
2022
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
82
Issue of the periodical within the volume
11
Country of publishing house
DE - GERMANY
Number of pages
20
Pages from-to
1-20
UT code for WoS article
000884904400003
EID of the result in the Scopus database
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