Search for neutrinoless quadruple-$\beta$ decay of $^{150}$Nd with the NEMO-3 detector

Abstract : We report the results of a first experimental search for lepton number violation by four units in the neutrinoless quadruple-β decay of Nd150 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.
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https://hal.archives-ouvertes.fr/hal-01582779
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Submitted on : Wednesday, September 6, 2017 - 1:33:22 PM
Last modification on : Wednesday, October 16, 2019 - 9:20:09 AM

Citation

R. Arnold, C. Augier, A.S. Barabash, A. Basharina-Freshville, S. Blondel, et al.. Search for neutrinoless quadruple-$\beta$ decay of $^{150}$Nd with the NEMO-3 detector. Phys.Rev.Lett., 2017, 119 (4), pp.041801. ⟨10.1103/PhysRevLett.119.041801⟩. ⟨hal-01582779⟩

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