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

R. Arnold 1 C. Augier 2 A.S. Barabash A. Basharina-Freshville S. Blondel 2 S. Blot M. Bongrand 2 D. Boursette 2 V. Brudanin J. Busto 3 A.J. Caffrey S. Calvez 2 M. Cascella C. Cerna 4 J.P. Cesar A. Chapon 5 E. Chauveau A. Chopra L. Dawson D. Duchesneau 6 D. Durand 5 V. Egorov G. Eurin 2 J.J. Evans L. Fajt D. Filosofov R. Flack X. Garrido 2 H. Gómez 2 B. Guillon 5 P. Guzowski R. Hodák A. Huber 4 P. Hubert 4 C. Hugon 4 S. Jullian 2 A. Klimenko O. Kochetov S.I. Konovalov V. Kovalenko D. Lalanne 2 K. Lang Y. Lemière 5 T. Le Noblet 6 Z. Liptak X.R. Liu P. Loaiza 2 G. Lutter 4 M. Macko 4 C. Macolino 2 F. Mamedov C. Marquet 4 F. Mauger 5 B. Morgan J. Mott I. Nemchenok M. Nomachi F. Nova F. Nowacki 1 H. Ohsumi C. Patrick R.B. Pahlka F. Perrot 4 F. Piquemal 4, 7 P. Povinec P. Přidal Y.A. Ramachers A. Remoto 6 J.L. Reyss 8 C.L. Riddle E. Rukhadze R. Saakyan R. Salazar X. Sarazin 2 Yu. Shitov L. Simard 2 F. Šimkovic A. Smetana K. Smolek A. Smolnikov S. Söldner-Rembold B. Soulé 4 D. Štefánik I. Štekl J. Suhonen C.S. Sutton G. Szklarz 2 J. Thomas V. Timkin S. Torre Vl.I. Tretyak V.I. Tretyak V.I. Umatov I. Vanushin C. Vilela V. Vorobel D. Waters F. Xie A. Žukauskas
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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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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