Precise measurement of $$2\nu \beta \beta $$2νββ decay of $$^{100}$$100Mo with the CUPID-Mo detection technology
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10052_2020_Article_8203.pdf
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Author(s)
Armengaud, E.
Augier, C.
Barabash, A.
Bellini, F.
Benato, G.
Benoît, A.
Beretta, M.
Bergé, L.
Billard, J.
Borovlev, Yu. A
Date Issued
July 25, 2020
Publisher
Springer Berlin Heidelberg
Citation
The European Physical Journal C. 2020 Jul 25;80(7):674
Version
Final published version
Abstract
Abstract
We report the measurement of the two-neutrino double-beta ($$2\nu \beta \beta $$2νββ) decay of $$^{100}$$100Mo to the ground state of $$^{100}$$100Ru using lithium molybdate ($$\hbox {Li}_2^{\;\;100}\hbox {MoO}_4$$Li2100MoO4) 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 kg$$\times $$×day, the half-life of $$^{100}$$100Mo is determined to be $$T_{1/2}^{2\nu }=[7.12^{+0.18}_{-0.14}\,\mathrm {(stat.)}\pm 0.10\,\mathrm {(syst.)}]\times 10^{18}$$T1/22ν=[7.12-0.14+0.18(stat.)±0.10(syst.)]×1018 years. This is the most accurate determination of the $$2\nu \beta \beta $$2νββ half-life of $$^{100}$$100Mo to date.
MIT Department
Massachusetts Institute of Technology. Department of Physics
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DOI of Published Version
https://doi.org/10.1140/epjc/s10052-020-8203-4
