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hal.structure.identifierCentre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG]
dc.contributor.authorRICOL, J.S.
dc.date.created2006
dc.date.issued2006
dc.date.conference2006-03-11
dc.description.abstractEnThe purpose of the NEMO3 experiment is to detect neutrinoless double beta decay in order to determine the nature of neutrino and its absolute mass. We analysed the 389 effective days of data from the $\sim 7$ kg of $^{100}$Mo and $\sim 1$ kg of $^{82}$Se and obtained the following limits on the half-life for the \bb process: $T_{1/2}(\beta\beta0 \nu) > 4.6 \times 10^{23}$ years (Mo) and $T_{1/2}(\beta \beta 0 \nu) > 1.0 \times 10^{23}$ years (Se). The corresponding limits on the neutrino effective mass are $ <$ 0.7 - 2.8 eV (Mo) and $ >$ 1.7 - 4.9 eV (Se) at 90% Confident Level. We also performed a detailled analysis on the double beta decay of $^{100}$Mo into the excited states $0^+_1$, $2^+_1$ of $^{100}$Ru. The results are: $T_{1/2}(\beta \beta 2 \nu \to 0^+_1) = 5.7^{+1.3}_{-0.9}(stat)\pm 0.7 (syst) \times 10^{20}$ years, $T_{1/2}(\beta \beta 2 \nu \to 2^+_1) > 1.1 \times 10^{21}$ years, $T_{1/2}(\beta \beta 0 \nu \to 0^+_1) > 8.9 \times 10^{22}$ years, $T_{1/2}(\beta \beta 0 \nu \to 2^+_1) > 1.6 \times 10^{23}$ years.
dc.language.isoen
dc.publisherThe GIOI publishers
dc.source.title2006 Electroweak Interactions and Unified Theories
dc.title.enResults of the NEMO3 experiment
dc.typeCommunication dans un congrès
dc.subject.halPhysique [physics]/Physique des Hautes Energies - Expérience [hep-ex]
dc.identifier.arxivhep-ex/0605104
bordeaux.page294-297
bordeaux.countryIT
bordeaux.title.proceeding2006 Electroweak Interactions and Unified Theories
bordeaux.conference.cityLa Thuile
bordeaux.peerReviewedoui
hal.identifierin2p3-00105604
hal.version1
hal.invitednon
hal.proceedingsoui
hal.conference.end2006-03-18
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//in2p3-00105604v1
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