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New Limit for Neutrinoless Double-Beta Decay of Mo 100 from the CUPID-Mo Experiment

Author(s)
Winslow, Lindley; Johnston, J.; Leder, A.; Ouellet, J. L.; Winslow, L.
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Abstract
The CUPID-Mo experiment at the Laboratoire Souterrain de Modane (France) is a demonstrator for CUPID, the next-generation ton-scale bolometric 0νββ experiment. It consists of a 4.2 kg array of 20 enriched Li_{2}^{100}MoO_{4} scintillating bolometers to search for the lepton-number-violating process of 0νββ decay in ^{100}Mo. With more than one year of operation (^{100}Mo exposure of 1.17  kg×yr for physics data), no event in the region of interest and, hence, no evidence for 0νββ is observed. We report a new limit on the half-life of 0νββ decay in ^{100}Mo of T_{1/2}>1.5×10^{24}  yr at 90% C.I. The limit corresponds to an effective Majorana neutrino mass ⟨m_{ββ}⟩<(0.31-0.54)  eV, dependent on the nuclear matrix element in the light Majorana neutrino exchange interpretation.
Date issued
2021
URI
https://hdl.handle.net/1721.1/142351
Department
Massachusetts Institute of Technology. Department of Physics
Journal
Physical Review Letters
Publisher
American Physical Society (APS)
Citation
Winslow, Lindley. 2021. "New Limit for Neutrinoless Double-Beta Decay of Mo 100 from the CUPID-Mo Experiment." Physical Review Letters, 126 (18).
Version: Final published version

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