Search for neutrinoless double-beta decay of Mo-100 with the NEMO-3 detector
- NázevTitle
- Search for neutrinoless double-beta decay of Mo-100 with the NEMO-3 detectorSearch for neutrinoless double-beta decay of Mo-100 with the NEMO-3 detector
- Druh výsledkuResult type
- Článek v časopiseJournal article
- AutořiAuthors
- R. Arnold, C. Augier, JD. Baker, R. Hodák, F. Mamedov, E. Rukhadze, A. Smetana, K. Smolek, I. Štekl, F. Šimkovic
- Klíčová slovaKeywords
- neutrino, NEMO-3, Majorona neutrino mass, neutrinoless double beta decay
- ExperimentCollaboration
- NEMO-3
- DOIDOI
- 10.1103/PhysRevD.89.111101
- Časopis / citaceJournal / citation
- Physical Review D 89(11), 111101 (2014) · ISSN 1550-7998
- RokYear
- 2014
- JazykLanguage
- eng
- ZáznamyRecords
- ProjektProject
- Speciální detekční techniky a studium potlačení pozadí pro účely experimentu COBRA (bezneutrinový dvojitý rozpad beta)Special detection techniques and the study of background suppression within the COBRA experiment (neutrinoless double beta decay); Příspěvek k rozšíření velké výzkumné infrastruktury evropského významuContribution of the Czech Republic to the extension of the large research infrastructure of European importance
- CitovánoCited by
- 113 (INSPIRE-HEP)
- Plný text (open access)Full text (open access)
- https://arxiv.org/pdf/1311.5695
- Citace ke staženíDownload citation
- TXT · BibTeX
AbstraktAbstract
We report the results of a search for the neutrinoless double-beta decay (0 upsilon beta beta) of Mo-100, 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 upsilon beta beta signal has been found, yielding a limit for the light Majorana neutrino mass mechanism of T-1/2(0 upsilon beta beta) > 1.1 x 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 < m(upsilon)> < 0.3-0.9 eV (90% C.L.). Constraints on other lepton number violating mechanisms of 0 upsilon 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.
We report the results of a search for the neutrinoless double-beta decay (0 upsilon beta beta) of Mo-100, 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 upsilon beta beta signal has been found, yielding a limit for the light Majorana neutrino mass mechanism of T-1/2(0 upsilon beta beta) > 1.1 x 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 < m(upsilon)> < 0.3-0.9 eV (90% C.L.). Constraints on other lepton number violating mechanisms of 0 upsilon 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.