Year: 2014
Type: article
Abstract: We report the results of a search for the neutrinoless double-$\ensuremath{\beta}$ decay ($0\ensuremath{\nu}\ensuremath{\beta}\ensuremath{\beta}$) of $^{100}\mathrm{Mo}$, using the NEMO-3 detector to reconstruct the full topology of the final state events. With an exposure of $34.7\text{ }\text{ }\mathrm{kg}\ifmmode\cdot\else\textperiodcentered\fi{}\mathrm{y}$, no evidence for the $0\ensuremath{\nu}\ensuremath{\beta}\ensuremath{\beta}$ signal has been found, yielding a limit for the light Majorana neutrino mass mechanism of ${T}_{1/2}(0\ensuremath{\nu}\ensuremath{\beta}\ensuremath{\beta})>1.1\ifmmode\times\else\texttimes\fi{}{10}^{24}$ 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 $⟨{m}_{\ensuremath{\nu}}⟩<0.3--0.9\text{ }\text{ }\mathrm{eV}$ (90% C.L.). Constraints on other lepton number violating mechanisms of $0\ensuremath{\nu}\ensuremath{\beta}\ensuremath{\beta}$ 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 $47\text{ }\text{ }\mathrm{kg}\ifmmode\cdot\else\textperiodcentered\fi{}\mathrm{y}$.
Authors: 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
Institutions: Centre National de la Recherche Scientifique, Institut Pluridisciplinaire Hubert Curien, Institut National de Physique Nucléaire et de Physique des Particules, Université Paris-Sud, Idaho National Laboratory, Institute for Theoretical and Experimental Physics, University College London, University of Manchester, Joint Institute for Nuclear Research, Centre de physique des particules de Marseille, Université de Bordeaux, Laboratoire de Physique des deux infinis Bordeaux, École Nationale Supérieure d'Ingénieurs de Caen, Laboratoire de Physique Corpusculaire de Caen, Université de Caen Normandie, Laboratoire d’Annecy de Physique des Particules, Czech Technical University in Prague, The University of Texas at Austin, University of Warwick, The University of Osaka, Saga University, Comenius University Bratislava, Laboratoire des Sciences du Climat et de l'Environnement, Imperial College London, Institut Universitaire de France, University of Jyväskylä, Mount Holyoke College, Institute for Nuclear Research, Charles University
Language: English
Topic: Neutrino Physics Research
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
Awards: G196419191, Programme of Research in Experimental Particle Physics at the University of Warwick: 2012-2016., SuperNEMO Commissioning and Sensitivity Demonstration, 2012 Consolidated Grant Supplement : UCL, SuperNEMO PROJECT COORDINATION, SuperNEMO Commissioning and Sensitivity Demonstration, Experimental Particle Physics Consolidated Grant (2012-2016), 2012 Consolidated Grant Supplement, Capital Equipment: Computing Cluster Upgrade and Neutrino Detector Laboratory Upgrade, G6024799018, SuperNEMO demonstrator module construction, G6649312515, SuperNEMO Commissioning and Sensitivity Demonstration
OpenAlex ID: W2105758317