/ hep-ex arXiv:1705.08847


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


Arnold, R. (Strasbourg, IPHC) ; Augier, C. (Orsay, LAL) ; Barabash, A.S. (Moscow, ITEP) ; Basharina-Freshville, A. (University Coll. London) ; Blondel, S. (Orsay, LAL) ; Blot, S. (Manchester U.) ; Bongrand, M. (Orsay, LAL) ; Boursette, D. (Orsay, LAL) ; Brudanin, V. (Moscow Phys. Eng. Inst.) ; Busto, J. (Marseille, CPPM) ; Caffrey, A.J. (Idaho Natl. Lab.) ; Calvez, S. (Orsay, LAL) ; Cascella, M. (University Coll. London) ; Cerna, C. (CENBG, Gradignan) ; Cesar, J.P. (Texas U.) ; Chapon, A. (Caen U.) ; Chauveau, E. (Manchester U.) ; Chopra, A. (University Coll. London) ; Dawson, L. (University Coll. London) ; Duchesneau, D. (Annecy, LAPP) ; Durand, D. (Caen U.) ; Egorov, V. (Dubna, JINR) ; Eurin, G. (University Coll. London) ; Evans, J.J. (Manchester U.) ; Fajt, L. (IEAP CTU, Prague) ; Filosofov, D. (Dubna, JINR) ; Flack, R. (University Coll. London) ; Garrido, X. (Orsay, LAL) ; Gómez, H. (Orsay, LAL) ; Guillon, B. (Caen U.) ; Guzowski, P. (Manchester U.) ; Hodák, R. (IEAP CTU, Prague) ; Huber, A. (CENBG, Gradignan) ; Hubert, P. (CENBG, Gradignan) ; Hugon, C. (CENBG, Gradignan) ; Jullian, S. (Orsay, LAL) ; Klimenko, A. (Dubna, JINR) ; Kochetov, O. (Dubna, JINR) ; Konovalov, S.I. (Moscow, ITEP) ; Kovalenko, V. (Dubna, JINR) ; Lalanne, D. (Orsay, LAL) ; Lang, K. (Texas U.) ; Lemière, Y. (Caen U.) ; Le Noblet, T. (Annecy, LAPP) ; Liptak, Z. (Texas U.) ; Liu, X.R. (University Coll. London) ; Loaiza, P. (Orsay, LAL) ; Lutter, G. (CENBG, Gradignan) ; Macko, M. (CENBG, Gradignan) ; Macolino, C. (Orsay, LAL) ; Mamedov, F. (IEAP CTU, Prague) ; Marquet, C. (CENBG, Gradignan) ; Mauger, F. (Caen U.) ; Morgan, B. (Warwick U.) ; Mott, J. (University Coll. London) ; Nemchenok, I. (Dubna, JINR) ; Nomachi, M. (Osaka U.) ; Nova, F. (Texas U.) ; Nowacki, F. (Strasbourg, IPHC) ; Ohsumi, H. (Saga U., Japan) ; Patrick, C. (University Coll. London) ; Pahlka, R.B. (Texas U.) ; Perrot, F. (CENBG, Gradignan) ; Piquemal, F. (Modane, Lab. Souterrain) ; Povinec, P. (Comenius U.) ; Přidal, P. (IEAP CTU, Prague) ; Ramachers, Y.A. (Warwick U.) ; Remoto, A. (Annecy, LAPP) ; Reyss, J.L. (LSCE, Gif-sur-Yvette) ; Riddle, C.L. (Idaho Natl. Lab.) ; Rukhadze, E. (IEAP CTU, Prague) ; Saakyan, R. (University Coll. London) ; Salazar, R. (Texas U.) ; Sarazin, X. (Orsay, LAL) ; Shitov, Yu. (Imperial Coll., London) ; Simard, L. (Inst. U. de France) ; Šimkovic, F. (Comenius U.) ; Smetana, A. (IEAP CTU, Prague) ; Smolek, K. (IEAP CTU, Prague) ; Smolnikov, A. (Dubna, JINR) ; Söldner-Rembold, S. (Manchester U.) ; Soulé, B. (CENBG, Gradignan) ; Štefánik, D. (Comenius U.) ; Štekl, I. (IEAP CTU, Prague) ; Suhonen, J. (Jyvaskyla U.) ; Sutton, C.S. (Mt. Holyoke Coll.) ; Szklarz, G. (Orsay, LAL) ; Thomas, J. (University Coll. London) ; Timkin, V. (Dubna, JINR) ; Torre, S. (University Coll. London) ; Tretyak, Vl.I. (Bucharest, IFIN-HH) ; Tretyak, V.I. (Dubna, JINR) ; Umatov, V.I. (Moscow, ITEP) ; Vanushin, I. (Moscow, ITEP) ; Vilela, C. (University Coll. London) ; Vorobel, V. (Charles U., Prague (main)) ; Waters, D. (University Coll. London) ; Xie, F. (University Coll. London) ; Žukauskas, A. (Charles U., Prague (main))

Pages: 6

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.

Web-Page: http://inspirehep.net/record/1601135/files/plots_kine_spec.png; http://inspirehep.net/record/1601135/files/plots_esum_4e.png; http://inspirehep.net/record/1601135/files/plots_esum_3e.png; http://inspirehep.net/record/1601135/files/plots_esum_1t.png; http://inspirehep.net/record/1601135/files/plots_mo.png; http://inspirehep.net/record/1601135/files/plots_se.png; http://inspirehep.net/record/1601135/files/plots_evdisp.png; http://inspirehep.net/record/1601135/files/arXiv:1705.08847.pdf


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