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dc.contributor.authorBARABASH, A.S.
hal.structure.identifierCentre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG]
dc.contributor.authorHUBERT, Ph.
dc.contributor.authorNACHAB, A.
dc.contributor.authorUMATOV, V.I.
dc.date.issued2019
dc.description.abstractEnTriple β decay of Nd150 to the ground and excited states of Eu150 and quadruple β decay of Nd150 to the excited states of Gd150 have been studied using a 400 cm3 low-background high-purity germanium detector and an external source consisting of 3046 g of natural Nd2O3 powder. A half-life limit for the quadruple β decay to the 01+ state of Gd150 was found to be T1/2(0ν+4ν)>8.7×1020 yr (90% C.L.). For other (0ν+4ν) transitions to the 21+, 31−, 41+, 22+, and 23+ excited states limits have been obtained for the first time at the level of (6.1–9.5)×1020 yr (90% C.L.). We report here also the results for the first search for triple β decay to the ground and excited final states of Eu150. We find no evidence of this decay and set lower limits on the half-life in the range T1/2(0ν+3ν)>(0.04−4.8)×1020 yr (90% C.L.).
dc.language.isoen
dc.subject.enElectroweak Interaction
dc.subject.enSymmetries
dc.subject.enneodymium: semileptonic decay
dc.subject.enexcited state: energy
dc.subject.enenergy: transition
dc.subject.endouble-beta decay: (3neutrino)
dc.subject.endouble-beta decay: (4neutrino)
dc.subject.enneutrino: mass
dc.subject.enneutrino: solar
dc.subject.enneutrino: Majorana
dc.subject.enbackground: low
dc.subject.ennew physics
dc.subject.enenergy spectrum
dc.title.enSearch for triple and quadruple $\beta$ decay of $^{150}$Nd
dc.typeArticle de revue
dc.identifier.doi10.1103/PhysRevC.100.045502
dc.subject.halPhysique [physics]/Physique Nucléaire Expérimentale [nucl-ex]
dc.identifier.arxiv1906.07180
bordeaux.journalPhys.Rev.C
bordeaux.page045502
bordeaux.volume100
bordeaux.issue4
bordeaux.peerReviewedoui
hal.identifierhal-02178609
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02178609v1
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