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-$\beta$ decay of ${}^{150}$Nd using a total exposure of $0.19$ kg$\cdot$y recorded with the NEMO-3 detector at the Modane Underground Laboratory (LSM). We find no evidence of this decay and set lower limits on the half-life in the range $T_{1/2}>(1.1-3.2)\times 10^{21}$ y at the $90\%$ CL, depending on the model used for the kinematic distributions of the emitted electrons.

6 pages, 4 figures

References in corpus (3)

• Probing New Physics Models of Neutrinoless Double Beta Decay with SuperNEMO
• Measurement of the $2\nu \beta \beta$ Decay Half-Life and Search for the $0\nu \beta \beta$ Decay of ${}^{116}$Cd with the NEMO-3 Detector
• Two-neutrino double-beta decay of ${}^{150}$Nd to excited final states in ${}^{150}$Sm

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