Measurement of the double-beta decay half-life and search for the neutrinoless double-beta decay of $^{48}{\rm Ca}$ with the NEMO-3 detector
Creators: name: 3 Collaboration
name: Arnold, R.
name: Augier, C.
name: Bakalyarov, A. M.
name: Baker, J. D.
name: Barabash, A. S.
name: Basharina-Freshville, A.
name: Blondel, S.
name: Blot, S.
name: Bongrand, M.
name: Brudanin, V.
name: Busto, J.
name: Caffrey, A. J.
name: Calvez, S.
name: Cascella, M.
name: Cerna, C.
name: Cesar, J. P.
name: Chapon, A.
name: Chauveau, E.
name: Chopra, A.
name: Duchesneau, D.
name: Durand, D.
name: Egorov, V.
name: Eurin, G.
name: Evans, J. J.
name: Fajt, L.
name: Filosofov, D.
name: Flack, R.
name: Garrido, X.
name: Gómez, H.
name: Guillon, B.
name: Guzowski, P.
name: Hodák, R.
name: Huber, A.
name: Hubert, P.
name: Hugon, C.
name: Jullian, S.
name: Klimenko, A.
name: Kochetov, O.
name: Konovalov, S. I.
name: Kovalenko, V.
name: Lalanne, D.
name: Lang, K.
name: Lebedev, V. I.
name: Lemière, Y.
name: Noblet, T. Le
name: Liptak, Z.
name: Liu, X. R.
name: Loaiza, P.
name: Lutter, G.
name: Mamedov, F.
name: Marquet, C.
name: Mauger, F.
name: Morgan, B.
name: Mott, J.
name: Nemchenok, I.
name: Nomachi, M.
name: Nova, F.
name: Nowacki, F.
name: Ohsumi, H.
name: Pahlka, R. B.
name: Perrot, F.
name: Piquemal, F.
name: Povinec, P.
name: Přidal, P.
name: Ramachers, Y. A.
name: Remoto, A.
name: Reyss, J. L.
name: Richards, B.
name: Riddle, C. L.
name: Rukhadze, E.
name: Rukhadze, N. I.
name: Saakyan, R.
name: Salazar, R.
name: Sarazin, X.
name: Shitov, Yu.
name: Simard, L.
name: Šimkovic, F.
name: Smetana, A.
name: Smolek, K.
name: Smolnikov, A.
name: Söldner-Rembold, S.
name: Soulé, B.
name: Štekl, I.
name: Suhonen, J.
name: Sutton, C. S.
name: Szklarz, G.
name: Thomas, J.
name: Timkin, V.
name: Torre, S.
name: Tretyak, Vl. I.
name: Tretyak, V. I.
name: Umatov, V. I.
name: Vanushin, I.
name: Vilela, C.
name: Vorobel, V.
name: Waters, D.
name: Zhukov, S. V.
name: Žukauskas, A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Experiment (nucl-ex)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences
subject: FOS: Physical sciences

description: The NEMO-3 experiment at the Modane Underground Laboratory has investigated the double-$β$ decay of $^{48}{\rm Ca}$. Using $5.25$ yr of data recorded with a $6.99\,{\rm g}$ sample of $^{48}{\rm Ca}$, approximately $150$ double-$β$ decay candidate events have been selected with a signal-to-background ratio greater than $3$. The half-life for the two-neutrino double-$β$ decay of $^{48}{\rm Ca}$ has been measured to be $T^{2ν}_{1/2}\,=\,[6.4\, ^{+0.7}_{-0.6}{\rm (stat.)} \, ^{+1.2}_{-0.9}{\rm (syst.)}] \times 10^{19}\,{\rm yr}$. A search for neutrinoless double-$β$ decay of $^{48}{\rm Ca}$ yields a null result and a corresponding lower limit on the half-life is found to be $T^{0ν}_{1/2} &gt; 2.0 \times 10^{22}\,{\rm yr}$ at $90\%$ confidence level, translating into an upper limit on the effective Majorana neutrino mass of $&lt; m_{ββ} &gt; &lt; 6.0 - 26$ ${\rm eV}$, with the range reflecting different nuclear matrix element calculations. Limits are also set on models involving Majoron emission and right-handed currents.
description: 8 pages, 5 figures, 3 tables. Final journal version after peer review