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Search for Neutrinoless Quadruple-β Decay of 150Nd with the NEMO-3 Detector


 


R. Arnold et al. (NEMO-3 Collaboration)
Phys. Rev. Lett. 119, 041801 – Published 24 July 2017


We report the results of a first experimental search for lepton number violation by four units in the neutrinoless quadruple-β decay of 150Nd
using a total exposure of 0.19 kg yr recorded with the NEMO-3 detector at the Modane Underground Laboratory. We find no evidence of this decay and set lower limits on the half-life in the range
T1/2>(1.1–3.2) × 1021 yr at the 90% C.L., depending on the model used for the kinematic distributions of the emitted electrons.


 


DOI :https://doi.org/10.1103/PhysRevLett...


 


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