Measurement of the double-β decay of 150Nd to the 01+ excited state of 150Sm in NEMO-3
- NázevTitle
- Measurement of the double-β decay of 150Nd to the 01+ excited state of 150Sm in NEMO-3Measurement of the double-β decay of 150Nd to the 01+ excited state of 150Sm in NEMO-3
- Druh výsledkuResult type
- Článek v časopiseJournal article
- AutořiAuthors
- X. Aguerre, R. Arnold, C. Augier, A. S. Barabash, R. Hodák, F. Koňařík, T. Křižák, M. Macko, F. Mamedov, V. Palušová, M. Petro, P. Přidal, E. Rukhadze, Y. Shitov, F. Šimkovic, A. Smetana, I. Štekl
- Klíčová slovaKeywords
- double beta decay, NEMO-3, SuperNEMO, neutrino
- ExperimentCollaboration
- NEMO-3
- DOIDOI
- 10.1140/epjc/s10052-023-12227-x
- Časopis / citaceJournal / citation
- The European Physical Journal C 83(12), 1117 (2023) · ISSN 1434-6052
- RokYear
- 2023
- JazykLanguage
- eng
- ZáznamyRecords
- ProjektProject
- Laboratoire Souterrain de Modane - účast ČRLaboratoire Souterrain de Modane – participation of the Czech Republic; Aplikace pixelových detektorů v zobrazováníApplications of pixel detectors in imaging; LSM-CZ III - Podzemní laboratoř LSM - účast České republiky - LM2023063 (2023–2026)LSM-CZ III - Podzemní laboratoř LSM - účast České republiky - LM2023063 (2023–2026)
- CitovánoCited by
- 10 (INSPIRE-HEP)
- Citace ke staženíDownload citation
- TXT · BibTeX
AbstraktAbstract
The NEMO-3 results for the double-beta decay of150Nd to the 0+1and 2+1excited states of150Sm are reported The data recorded during 5.25 year with 36.6 g of the iso-tope150Nd are used in the analysis. The signal of the 2 nu beta beta transition to the 0+1excited state is detected with a statisti-cal significance exceeding 5 sigma. The half-life is measured tobeT(1/2)(0 nu beta beta)((0+1)=[1.11+0.19-0.14(stat)+0.17-0.15(syst)]x10(20 )year, which is the most precise value that has been measuredto date. 90% confidence-level limits are set for the otherdecay modes. For the 2 nu beta beta decay to the 2+1level the limitisT2 nu beta beta 1/2(2+1)>2.42x10 (20 )year. The limits on the 0 nu beta beta decay to the 0+1and 2+1levels of150Sm are significantlyimproved toT0 nu beta beta 1/2(0+1)>1.36x1022year and T-1/2(0 nu beta beta)(2+1)>1.26x10(22)year
The NEMO-3 results for the double-beta decay of150Nd to the 0+1and 2+1excited states of150Sm are reported The data recorded during 5.25 year with 36.6 g of the iso-tope150Nd are used in the analysis. The signal of the 2 nu beta beta transition to the 0+1excited state is detected with a statisti-cal significance exceeding 5 sigma. The half-life is measured tobeT(1/2)(0 nu beta beta)((0+1)=[1.11+0.19-0.14(stat)+0.17-0.15(syst)]x10(20 )year, which is the most precise value that has been measuredto date. 90% confidence-level limits are set for the otherdecay modes. For the 2 nu beta beta decay to the 2+1level the limitisT2 nu beta beta 1/2(2+1)>2.42x10 (20 )year. The limits on the 0 nu beta beta decay to the 0+1and 2+1levels of150Sm are significantlyimproved toT0 nu beta beta 1/2(0+1)>1.36x1022year and T-1/2(0 nu beta beta)(2+1)>1.26x10(22)year