4.7 Article

Precise measurement of 2νββ decay of 100Mo with the CUPID-Mo detection technology

Journal

EUROPEAN PHYSICAL JOURNAL C
Volume 80, Issue 7, Pages -

Publisher

SPRINGER
DOI: 10.1140/epjc/s10052-020-8203-4

Keywords

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Funding

  1. Agence Nationale de la Recherche (ANR, France)
  2. IDEATE InternationalAssociated Laboratory (LIA)
  3. Russian Science Foundation [18-12-00003]
  4. project Investigations of double beta decay, rare alpha and beta decays of the program of the National Academy of Sciences of Ukraine Laboratory of young scientists
  5. P2IO LabEx [ANR-10-LABX-0038]
  6. Academy of Finland [314733, 320062]
  7. National Science Foundation [NSF-PHY-1614611]
  8. US Department of Energy (DOE) Office of Science [DE-AC02-05CH11231]
  9. DOE Office of Science, Office of Nuclear Physics [DE-FG0208ER41551, DE-SC0011091]
  10. France-Berkeley Fund
  11. MISTI-France fund
  12. Chateaubriand Fellowship of the Office for Science& Technology of theEmbassy of France in theUnited States
  13. Russian Science Foundation [18-12-00003] Funding Source: Russian Science Foundation

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We report the measurement of the two-neutrino double-beta (2 nu beta beta) decay of (10)0Mo to the ground state of (10)0Ru using lithium molybdate ((Li2MoO4)-Mo-100) scintillating bolometers. The detectors were developed for the CUPID-Mo program and operated at the EDELWEISS-III low background facility in the Modane underground laboratory (France). From a total exposure of 42.235 kgxday, the halflife of Mo-100 is determined to be T-1/2(2 nu) = [7.12(-0.14)(+0.18) (stat.) +/- 0.10 (syst.)] x10(18) years. This is the most accurate determination of the 2 nu beta beta half-life of Mo-100 to date.

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