Detailed studies of 100 Mo two-neutrino double beta decay in NEMO-3
- NázevTitle
- Detailed studies of 100 Mo two-neutrino double beta decay in NEMO-3Detailed studies of 100 Mo two-neutrino double beta decay in NEMO-3
- Druh výsledkuResult type
- Článek v časopiseJournal article
- AutořiAuthors
- R. Arnold, C. Augier, A.S. Barabash, A. Basharina-Freshville, L. Fajt, R. Hodák, M. Macko, F. Mamedov, P. Přidal, E. Rukhadze, A. Smetana, K. Smolek, I. Štekl
- DOIDOI
- 10.1140/epjc/s10052-019-6948-4
- Časopis / citaceJournal / citation
- European Physical Journal C. 2019, 79(5), 1-11. ISSN 1434-6044.
- RokYear
- 2019
- JazykLanguage
- eng
- WoSWoS
- 000468897100002
- ScopusScopus
- 2-s2.0-85066276174
- RIVRIV
- RIV/68407700:21670/19:00336830!RIV20-MSM-21670___
- ProjektProject
- Podzemní laboratoř LSM - česká účast ve výzkumné infrastruktuře evropského významuUnderground laboratory LSM - Czech participation to European-level research infrastructure
AbstraktAbstract
The full data set of the NEMO-3 experiment has been used to measure the half-life of the two-neutrino double beta decay of 100Mo to the ground state of 100Ru, T1/2=[6.81±0.01(stat)-0.40+0.38(syst)]×1018 year. The two-electron energy sum, single electron energy spectra and distribution of the angle between the electrons are presented with an unprecedented statistics of 5 × 10 5 events and a signal-to-background ratio of ∼ 80. Clear evidence for the Single State Dominance model is found for this nuclear transition. Limits on Majoron emitting neutrinoless double beta decay modes with spectral indices of n = 2 , 3 , 7 , as well as constraints on Lorentz invariance violation and on the bosonic neutrino contribution to the two-neutrino double beta decay mode are obtained.
The full data set of the NEMO-3 experiment has been used to measure the half-life of the two-neutrino double beta decay of 100Mo to the ground state of 100Ru, T1/2=[6.81±0.01(stat)-0.40+0.38(syst)]×1018 year. The two-electron energy sum, single electron energy spectra and distribution of the angle between the electrons are presented with an unprecedented statistics of 5 × 10 5 events and a signal-to-background ratio of ∼ 80. Clear evidence for the Single State Dominance model is found for this nuclear transition. Limits on Majoron emitting neutrinoless double beta decay modes with spectral indices of n = 2 , 3 , 7 , as well as constraints on Lorentz invariance violation and on the bosonic neutrino contribution to the two-neutrino double beta decay mode are obtained.