Search for Neutrinoless Quadruple-β Decay of 150Nd with the NEMO-3 Detector
NEMO-3 Collaboration. (2017). Search for Neutrinoless Quadruple-β Decay of 150Nd with the NEMO-3 Detector. Physical Review Letters, 119 (4), 041801. doi:10.1103/PhysRevLett.119.041801
Published in
Physical Review LettersDate
2017Copyright
© 2017 American Physical Society. Published in this repository with the kind permission of the publisher.
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)×10^21 yr at the 90% C.L., depending on the model used for the kinematic distributions of the emitted electrons.