학술논문

Search for neutrinoless quadruple-$\beta$ decay of $^{150}$Nd with the NEMO-3 detector
Document Type
Working Paper
Source
Phys. Rev. Lett. 119, 041801 (2017)
Subject
High Energy Physics - Experiment
Nuclear Experiment
Language
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 $T_{1/2}>(1.1-3.2)\times10^{21}$ y at the $90\%$ CL, depending on the model used for the kinematic distributions of the emitted electrons.
Comment: 6 pages, 4 figures