Search for neutrinoless double-beta decay ofMo100with the NEMO-3 detector

6533b870fe1ef96bd12cfa08

RESEARCH PRODUCT

Search for neutrinoless double-beta decay ofMo100with the NEMO-3 detector

C. Hugon I. Vanushin Pavel P. Povinec E. Rukhadze V. Egorov A.j. Caffrey F. Nova Karol Lang X. Sarazin B. Morgan A. Smetana D. Waters Guillaume Lutter Catherine Marquet C. L. Riddle A. Remoto P. Loaiza C. Augier F. Piquemal V.i. Tretyak D. Lalanne D. Durand Juergen Thomas A. Basharina-freshville J. Busto R. Saakyan J. Mott A. S. Barabash Y. Lemière V. I. Umatov J. J. Evans A.a. Smolnikov A. A. Klimenko L. Simard Fedor ŠImkovic Hector Gomez V.b. Brudanin R. Hodák J. L. Reyss Masaharu Nomachi Igor Nemchenok C. Cerna S. Blot Z. J. Liptak A. Chapon R. B. Pahlka Ph. Hubert P. Guzowski D. Duchesneau S. Jullian C.s. Sutton F. Nowacki Karel Smolek X. Garrido B. Soulé R. Arnold Jouni Suhonen R. L. Flack G. Eurin V. V. Timkin A. ŽUkauskas F. Mauger J. Baker V. Kovalenko B. Guillon S. I. Konovalov Yu. Shitov Yu. Shitov O.i. Kochetov C. Vilela F. Perrot B. Richards S. Torre F. Mamedov G. Szklarz Y. A. Ramachers S. Söldner-rembold M. Bongrand S. Blondel Vit Vorobel E. Chauveau I. Stekl Vl.i. Tretyak H. Ohsumi

subject

Physics Nuclear and High Energy Physics Particle physics 010308 nuclear & particles physics Electron 01 natural sciences Beta decay Lepton number Nuclear physics MAJORANA Double beta decay 0103 physical sciences Beta (velocity)Neutrino 010306 general physics Energy (signal processing)

description

We report the results of a search for the neutrinoless double-$\beta$ decay (0$\nu\beta\beta$) 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$\nu\beta\beta$ signal has been found, yielding a limit for the light Majorana neutrino mass mechanism of $T_{1/2}(0\nu\beta\beta)>1.1 \times 10^{24}$ 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 $ < 0.3-0.8$ eV (90% C.L.). Constraints on other lepton number violating mechanisms of 0$\nu\beta\beta$ 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 kg.y.

year	journal	country	edition	language
2014-06-12	Physical Review D

https://doi.org/10.1103/physrevd.89.111101