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Morgan, B. (Ben); Ramachers , Y.; ,; HASH(0x55897e46fea0) (2014)
Publisher: American Physical Society
Languages: English
Types: Article
Subjects: QC
We report the results of a search for the neutrinoless double-β decay (0νββ) of Mo100, 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 0νββ signal has been found, yielding a limit for the light Majorana neutrino mass mechanism of T1/2(0νββ)>1.1×1024 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 ⟨mν⟩<0.3–0.9  eV (90% C.L.). Constraints on other lepton number violating mechanisms of 0νββ 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.
  • The results below are discovered through our pilot algorithms. Let us know how we are doing!

    • 1IPHC, ULP, CNRS/IN2P3, F-67037 Strasbourg, France
    • 2LAL, Univ Paris-Sud, CNRS/IN2P3, F-91405 Orsay, France
    • 3Idaho National Laboratory, Idaho Falls, ID 83415, U.S.A.
    • 4ITEP, 117218 Moscow, Russia
    • 5UCL, London WC1E 6BT, United Kingdom
    • 6University of Manchester, Manchester M13 9PL, United Kingdom
    • 7JINR, 141980 Dubna, Russia
    • 8CPPM, Universite de Marseille, CNRS/IN2P3, F-13288 Marseille, France
    • 9CENBG, Universite de Bordeaux, CNRS/IN2P3, F-33175 Gradignan, France
    • 10LPC Caen, ENSICAEN, Universite de Caen, CNRS/IN2P3, F-14050 Caen, France
    • 11LAPP, Universite de Savoie, CNRS/IN2P3, F-74941 Annecy-le-Vieux, France
    • 12Institute of Experimental and Applied Physics, Czech Technical University in Prague, CZ-12800 Prague, Czech Republic
    • 13University of Texas at Austin, Austin, TX 78712, U.S.A.
    • 14Laboratoire Souterrain de Modane, F-73500 Modane, France
    • 15University of Warwick, Coventry CV4 7AL, United Kingdom
    • 16Osaka University, 1-1 Machikaney arna Toyonaka, Osaka 560-0043, Japan
    • 17Saga University, Saga 840-8502, Japan
    • 18FMFI, Comenius Univ., SK-842 48 Bratislava, Slovakia
    • 19LSCE, CNRS, F-91190 Gif-sur-Yvette, France
    • 20Imperial College London, London SW7 2AZ, United Kingdom
    • 21Institut Universitaire de France, F-75005 Paris, France
    • 22Jyvaskyla University, FIN-40351 Jyvaskyla, Finland
    • 23MHC, South Hadley, Massachusetts 01075, U.S.A.
    • 24Institute for Nuclear Research, MSP 03680, Kyiv, Ukraine
    • 25Charles University in Prague, Faculty of Mathematics and Physics, CZ-12116 Prague, Czech Republic
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