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Le Noblet (14), Ukraine (27) Charles University in Prague, ULP, United Kingdom (17) Osaka University, United Kingdom (23) Institut Universitaire de France, United Kingdom (7) University of Manchester, United Kingdom (8) JINR, Universit\\'e de Bordeaux, Universit\\'e de Caen, Universit\\'e de Marseille, Universit\\'e de Savoie, Univ Paris-Sud, USA (13) LPC Caen, USA (26) Institute for Nuclear Research, USA (5) ITEP, V. Brudanin (8, V. Egorov (8), V.I. Lebedev (3), V.I. Tretyak (8), V.I. Umatov (5), V. Kovalenko (8), Vl.I. Tretyak (26), V. Timkin (8), V. Vorobel (27), X. Garrido (2), X. R. Liu (6), X. Sarazin (2), Y.A. Ramachers (16), Y. Lemi\\`ere (13), Yu. Shitov (8, Z. Liptak (12)","submitted_at":"2016-04-06T18:00:34Z","abstract_excerpt":"The NEMO-3 experiment at the Modane Underground Laboratory has investigated the double-$\\beta$ 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-$\\beta$ decay candidate events have been selected with a signal-to-background ratio greater than $3$. The half-life for the two-neutrino double-$\\beta$ decay of $^{48}{\\rm Ca}$ has been measured to be $T^{2\\nu}_{1/2}\\,=\\,[6.4\\, ^{+0.7}_{-0.6}{\\rm (stat.)} \\, ^{+1.2}_{-0.9}{\\rm (syst.)}] \\times 10^{19}\\,{\\rm yr}$. 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