학술논문
Search for neutrinoless β+ EC decay of Te 120 with CUORE-0
Document Type
article
Author
Alduino, C; Alfonso, K; Artusa, DR; Avignone, FT; Azzolini, O; Bari, G; Bellini, F; Benato, G; Bersani, A; Biassoni, M; Branca, A; Brofferio, C; Bucci, C; Camacho, A; Caminata, A; Canonica, L; Cao, XG; Capelli, S; Cappelli, L; Cardani, L; Carniti, P; Casali, N; Cassina, L; Chiesa, D; Chott, N; Clemenza, M; Copello, S; Cosmelli, C; Cremonesi, O; Creswick, RJ; Cushman, JS; D'Addabbo, A; D'Aguanno, D; Dafinei, I; Davis, CJ; Dell'Oro, S; Deninno, MM; Di Domizio, S; Di Vacri, ML; Drobizhev, A; Fang, DQ; Faverzani, M; Ferri, E; Ferroni, F; Fiorini, E; Franceschi, MA; Freedman, SJ; Fujikawa, BK; Giachero, A; Gironi, L; Giuliani, A; Gladstone, L; Gorla, P; Gotti, C; Gutierrez, TD; Han, K; Heeger, KM; Hennings-Yeomans, R; Huang, HZ; Keppel, G; Kolomensky, YG; Leder, A; Ligi, C; Lim, KE; Ma, YG; Marini, L; Martinez, M; Maruyama, RH; Mei, Y; Moggi, N; Morganti, S; Mosteiro, PJ; Nagorny, SS; Napolitano, T; Nastasi, M; Nones, C; Norman, EB; Novati, V; Nucciotti, A; O'Donnell, T; Ouellet, JL; Pagliarone, CE; Pallavicini, M; Palmieri, V; Pattavina, L; Pavan, M; Pessina, G; Pira, C; Pirro, S; Pozzi, S; Previtali, E; Rosenfeld, C; Rusconi, C; Sakai, M; Sangiorgio, S; Santone, D; Schmidt, B; Schmidt, J; Scielzo, ND; Singh, V
Source
Physical Review C. 97(5)
Subject
Language
Abstract
We have performed a search for neutrinoless β+EC decay of Te120 using the final CUORE-0 data release. We describe a new analysis method for the simultaneous fit of signatures with different event topology, and of data subsets with different signal efficiency, obtaining a limit on the half-life of the decay of T1/2>1.6×1021 yr at 90% credibility interval (CI). Combining this with results from Cuoricino, a predecessor experiment, we obtain the strongest limit to date, corresponding to T1/2>2.7×1021 yr at 90% CI.