Measurement of the 2 nu beta beta decay half-life and search for the 0 nu beta beta decay of Cd-116 with the NEMO-3 detector
- NázevTitle
- Measurement of the 2 nu beta beta decay half-life and search for the 0 nu beta beta decay of Cd-116 with the NEMO-3 detectorMeasurement of the 2 nu beta beta decay half-life and search for the 0 nu beta beta decay of Cd-116 with the NEMO-3 detector
- Druh výsledkuResult type
- Článek v časopiseJournal article
- AutořiAuthors
- R. Arnold, C. Augier, L. Fajt, R. Hodá1, F. Mamedov, P. Přidal, E. Rukhadze, A. Smetana, K. Smolek, I. Štekl, V. Vorobel, A. Zukauskas, al. et
- Klíčová slovaKeywords
- double beta decay, state dominance hypothesis, nuclear-data sheets, neutrino mass, majoron
- ExperimentCollaboration
- NEMO-3
- DOIDOI
- 10.1103/PhysRevD.95.012007
- Časopis / citaceJournal / citation
- Physical Review D 95(1), 012007 (2017) · ISSN 2470-0010
- RokYear
- 2017
- JazykLanguage
- eng
- ZáznamyRecords
- ProjektProject
- Podzemní laboratoř LSM - česká účast ve výzkumné infrastruktuře evropského významuUnderground laboratory LSM - Czech participation to European-level research infrastructure
- CitovánoCited by
- 82 (INSPIRE-HEP)
- Plný text (open access)Full text (open access)
- https://research.manchester.ac.uk/en/publications/d8fea538-9a41-46eb-9247-eed09…
- Citace ke staženíDownload citation
- TXT · BibTeX
AbstraktAbstract
The NEMO-3 experiment measured the half-life of the 2 nu beta beta decay and searched for the 0 nu beta beta decay of Cd-116. Using 410 g of Cd-116 installed in the detector with an exposure of 5.26 y, (4968 +/- 74) events corresponding to the 2 nu beta beta decay of Cd-116 to the ground state of Sn-116 have been observed with a signal to background ratio of about 12. The half-life of the 2 nu beta beta decay has been measured to be T-1/2(2 nu) = [2.74 +/- 0.04(stat) +/- 0.18(syst)] x 10(19) y. No events have been observed above the expected background while searching for 0 nu beta beta decay. The corresponding limit on the half-life is determined to be T-1/2(0 nu) >= 1.0 x 10(23) y at the 90% C. L. which corresponds to an upper limit on the effective Majorana neutrino mass of < m(nu)> <= 1.4-2.5 eV depending on the nuclear matrix elements considered. Limits on other mechanisms generating 0 nu beta beta decay such as the exchange of R-parity violating supersymmetric particles, right-handed currents and majoron emission are also obtained.
The NEMO-3 experiment measured the half-life of the 2 nu beta beta decay and searched for the 0 nu beta beta decay of Cd-116. Using 410 g of Cd-116 installed in the detector with an exposure of 5.26 y, (4968 +/- 74) events corresponding to the 2 nu beta beta decay of Cd-116 to the ground state of Sn-116 have been observed with a signal to background ratio of about 12. The half-life of the 2 nu beta beta decay has been measured to be T-1/2(2 nu) = [2.74 +/- 0.04(stat) +/- 0.18(syst)] x 10(19) y. No events have been observed above the expected background while searching for 0 nu beta beta decay. The corresponding limit on the half-life is determined to be T-1/2(0 nu) >= 1.0 x 10(23) y at the 90% C. L. which corresponds to an upper limit on the effective Majorana neutrino mass of < m(nu)> <= 1.4-2.5 eV depending on the nuclear matrix elements considered. Limits on other mechanisms generating 0 nu beta beta decay such as the exchange of R-parity violating supersymmetric particles, right-handed currents and majoron emission are also obtained.