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arXiv · 1311.5695

Search for Neutrinoless Double-Beta Decay of $^{100}$Mo with the NEMO-3 Detector

3 Collaboration·R. Arnold·C. Augier·J. D. Baker·A. S. Barabash·A. Basharina-Freshville·S. Blondel·S. Blot·M. Bongrand·V. Brudanin·J. Busto·A. J. Caffrey·C. Cerna·A. Chapon·E. Chauveau·D. Duchesneau·D. Durand·V. Egorov·G. Eurin·J. J. Evans·R. Flack·X. Garrido·H. Gómez·B. Guillon·P. Guzowski·R. Hodák·P. Hubert·C. Hugon·S. Jullian·A. Klimenko·O. Kochetov·S. I. Konovalov·V. Kovalenko·D. Lalanne·K. Lang·Y. Lemière·Z. Liptak·P. Loaiza·G. Lutter·F. Mamedov·C. Marquet·F. Mauger·B. Morgan·J. Mott·I. Nemchenok·M. Nomachi·F. Nova·F. Nowacki·H. Ohsumi·R. B. Pahlka·F. Perrot·F. Piquemal·P. Povinec·Y. A. Ramachers·A. Remoto·J. L. Reyss·B. Richards·C. L. Riddle·E. Rukhadze·R. Saakyan·X. Sarazin·Yu. Shitov·L. Simard·F. Šimkovic·A. Smetana·K. Smolek·A. Smolnikov·S. Söldner-Rembold·B. Soulé·I. Štekl·J. Suhonen·C. S. Sutton·G. Szklarz·J. Thomas·V. Timkin·S. Torre·Vl. I. Tretyak·V. I. Tretyak·V. I. Umatov·I. Vanushin·C. Vilela·V. Vorobel·D. Waters·A. Žukauskas
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Abstract

We report the results of a search for the neutrinoless double-$β$ decay (0$νββ$) of $^{100}$Mo, using the NEMO-3 detector to reconstruct the full topology of the final state events. With an exposure of 34.7 kg.y, no evidence for the 0$νββ$ signal has been found, yielding a limit for the light Majorana neutrino mass mechanism of $T_{1/2}(0νββ)>1.1 \times 10^{24}$ years (90% C.L.) once both statistical and systematic uncertainties are taken into account. Depending on the Nuclear Matrix Elements this corresponds to an upper limit on the Majorana effective neutrino mass of $< m_ν > < 0.3-0.9$ eV (90% C.L.). Constraints on other lepton number violating mechanisms of 0$νββ$ decays are also given. Searching for high-energy double electron events in all suitable sources of the detector, no event in the energy region [3.2-10] MeV is observed for an exposure of 47 kg.y.

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3 Collaboration, R. Arnold, C. Augier, J. D. Baker, A. S. Barabash, A. Basharina-Freshville, S. Blondel, S. Blot, M. Bongrand, V. Brudanin, J. Busto, A. J. Caffrey, C. Cerna, A. Chapon, E. Chauveau, D. Duchesneau, D. Durand, V. Egorov, G. Eurin, J. J. Evans, R. Flack, X. Garrido, H. Gómez, B. Guillon, P. Guzowski, R. Hodák, P. Hubert, C. Hugon, S. Jullian, A. Klimenko, O. Kochetov, S. I. Konovalov, V. Kovalenko, D. Lalanne, K. Lang, Y. Lemière, Z. Liptak, P. Loaiza, G. Lutter, F. Mamedov, C. Marquet, F. Mauger, B. Morgan, J. Mott, I. Nemchenok, M. Nomachi, F. Nova, F. Nowacki, H. Ohsumi, R. B. Pahlka, F. Perrot, F. Piquemal, P. Povinec, Y. A. Ramachers, A. Remoto, J. L. Reyss, B. Richards, C. L. Riddle, E. Rukhadze, R. Saakyan, X. Sarazin, Yu. Shitov, L. Simard, F. Šimkovic, A. Smetana, K. Smolek, A. Smolnikov, S. Söldner-Rembold, B. Soulé, I. Štekl, J. Suhonen, C. S. Sutton, G. Szklarz, J. Thomas, V. Timkin, S. Torre, Vl. I. Tretyak, V. I. Tretyak, V. I. Umatov, I. Vanushin, C. Vilela, V. Vorobel, D. Waters, A. Žukauskas. 2014-06-20. Search for Neutrinoless Double-Beta Decay of $^{100}$Mo with the NEMO-3 Detector. https://doi.org/10.1103/physrevd.89.111101

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