학술논문
Search for double-β decay of 130Te to the first 0+ excited state of 130Xe with the CUORICINO experiment bolometer array
Document Type
article
Author
Andreotti, E; Arnaboldi, C; Avignone, FT; Balata, M; Bandac, I; Barucci, M; Beeman, JW; Bellini, F; Brofferio, C; Bryant, A; Bucci, C; Canonica, L; Capelli, S; Carbone, L; Carrettoni, M; Clemenza, M; Cremonesi, O; Creswick, RJ; Di Domizio, S; Dolinski, MJ; Ejzak, L; Faccini, R; Farach, HA; Ferri, E; Fiorini, E; Foggetta, L; Giachero, A; Gironi, L; Giuliani, A; Gorla, P; Guardincerri, E; Gutierrez, TD; Haller, EE; Kazkaz, K; Kogler, L; Kraft, S; Maiano, C; Martinez, C; Martinez, M; Maruyama, RH; Newman, S; Nisi, S; Nones, C; Norman, EB; Nucciotti, A; Orio, F; Pallavicini, M; Palmieri, V; Pattavina, L; Pavan, M; Pedretti, M; Pessina, G; Pirro, S; Previtali, E; Risegari, L; Rosenfeld, C; Rusconi, C; Salvioni, C; Sangiorgio, S; Schaeffer, D; Scielzo, ND; Sisti, M; Smith, AR; Tomei, C; Ventura, G; Vignati, M
Source
Physical Review C - Nuclear Physics. 85(4)
Subject
Language
Abstract
The CUORICINO experiment was an array of 62 TeO2 single-crystal bolometers with a total 130Te mass of 11.3kg. The experiment finished in 2008 after more than 3 yr of active operating time. Searches for both 0ν and 2ν double-β decay to the first excited 0+ state in 130Xe were performed by studying different coincidence scenarios. The analysis was based on data representing a total exposure of N(130Te)•t=9.5×1025yr. No evidence for a signal was found. The resulting lower limits on the half-lives are T122ν(130Te→130Xe*)>1. 3×1023yr (90% C.L.), and T120ν(130Te →130Xe*)>9.4×1023yr (90% CL). ©2012 American Physical Society.