학술논문
Detailed studies of $$^{100}$$ 100 Mo two-neutrino double beta decay in NEMO-3
Document Type
article
Author
R. Arnold; C. Augier; A. S. Barabash; A. Basharina-Freshville; S. Blondel; S. Blot; M. Bongrand; D. Boursette; V. Brudanin; J. Busto; A. J. Caffrey; S. Calvez; M. Cascella; C. Cerna; J. P. Cesar; A. Chapon; E. Chauveau; A. Chopra; L. Dawson; D. Duchesneau; D. Durand; R. Dvornický; V. Egorov; G. Eurin; J. J. Evans; L. Fajt; D. Filosofov; R. Flack; X. Garrido; C. Girard-Carillo; H. Gómez; B. Guillon; P. Guzowski; R. Hodák; A. Huber; P. Hubert; C. Hugon; S. Jullian; O. Kochetov; S. I. Konovalov; V. Kovalenko; D. Lalanne; K. Lang; Y. Lemière; T. Le Noblet; Z. Liptak; X. R. Liu; P. Loaiza; G. Lutter; M. Macko; C. Macolino; F. Mamedov; C. Marquet; F. Mauger; A. Minotti; B. Morgan; J. Mott; I. Nemchenok; M. Nomachi; F. Nova; F. Nowacki; H. Ohsumi; G. Oliviéro; R. B. Pahlka; C. Patrick; F. Perrot; A. Pin; F. Piquemal; P. Povinec; P. Přidal; Y. A. Ramachers; A. Remoto; J. L. Reyss; C. L. Riddle; E. Rukhadze; R. Saakyan; A. Salamatin; R. Salazar; X. Sarazin; J. Sedgbeer; Yu. Shitov; L. Simard; F. Šimkovic; A. Smetana; K. Smolek; A. Smolnikov; S. Söldner-Rembold; B. Soulé; I. Štekl; J. Suhonen; C. S. Sutton; G. Szklarz; H. Tedjditi; J. Thomas; V. Timkin; S. Torre; Vl. I. Tretyak; V. I. Tretyak; V. I. Umatov; I. Vanushin; C. Vilela; V. Vorobel; D. Waters; F. Xie; A. Žukauskas
Source
European Physical Journal C: Particles and Fields, Vol 79, Iss 5, Pp 1-11 (2019)
Subject
Language
English
ISSN
1434-6044
1434-6052
1434-6052
Abstract
Abstract 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 $$^{100}$$ 100 Mo to the ground state of $$^{100}$$ 100 Ru, $$T_{1/2} = \left[ 6.81 \pm 0.01\,\left( \text{ stat }\right) ^{+0.38}_{-0.40}\,\left( \text{ syst }\right) \right] \times 10^{18}$$ T1/2=6.81±0.01stat-0.40+0.38syst×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 $$5\times 10^5$$ 5×105 events and a signal-to-background ratio of $$\sim $$ ∼ 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 $$\mathrm{n}=2,3,7$$ 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.