0000000000230030

AUTHOR

C. S. Sutton

showing 2 related works from this author

Results of the search for neutrinoless double-βdecay inMo100with the NEMO-3 experiment

2015

The NEMO-3 detector, which had been operating in the Modane Underground Laboratory from 2003 to 2010, was designed to search for neutrinoless double $\beta$ ($0\nu\beta\beta$) decay. We report final results of a search for $0\nu\beta\beta$ decays with $6.914$ kg of $^{100}$Mo using the entire NEMO-3 data set with a detector live time of $4.96$ yr, which corresponds to an exposure of 34.3 kg$\cdot$yr. We perform a detailed study of the expected background in the $0\nu\beta\beta$ signal region and find no evidence of $0\nu\beta\beta$ decays in the data. The level of observed background in the $0\nu\beta\beta$ signal region $[2.8-3.2]$ MeV is $0.44 \pm 0.13$ counts/yr/kg, and no events are obs…

PhysicsNuclear and High Energy PhysicsParticle physics010308 nuclear & particles physicsSignal region01 natural sciencesBeta decayLower limitNuclear physicsMAJORANADouble beta decay0103 physical sciencesUnderground laboratoryBeta (velocity)Neutrino010306 general physicsPhysical Review D
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Measurement of the two neutrino double beta decay half-life of Zr-96 with the NEMO-3 detector

2010

Using 9.4 g of Zr-96 and 1221 days of data from the NEMO-3 detector corresponding to 0.031 kg yr, the obtained 2vbb decay half-life measurement is [2.35 +/- 0.14(stat) +/- 0.16(syst)] x 10^19 yr. Different characteristics of the final state electrons have been studied, such as the energy sum, individual electron energy, and angular distribution. The 2v nuclear matrix element is extracted using the measured 2vbb half-life and is 0.049 +/- 0.002. Constraints on 0vbb decay have also been set.

PhysicsNuclear and High Energy PhysicsIsotope010308 nuclear & particles physicsDetectorFOS: Physical sciencesHalf-lifeElectron[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]7. Clean energy01 natural sciencesNuclear physicsRadioactivityAngular distributionDouble beta decay0103 physical sciencesNuclear Experiment (nucl-ex)Neutrino010306 general physicsNuclear ExperimentEnergy (signal processing)
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