The CUORICINO experiment was an array of 62 TeO 2 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)
Andreotti, E., Arnaboldi, C., Avignone, F., Balata, M., Bandac, I., Barucci, M., et al. (2012). Search for double-β decay of 130Te to the first 0 + excited state of 130Xe with the CUORICINO experiment bolometer array. PHYSICAL REVIEW. C, NUCLEAR PHYSICS, 85(4) [10.1103/PhysRevC.85.045503].
Search for double-β decay of 130Te to the first 0 + excited state of 130Xe with the CUORICINO experiment bolometer array
ARNABOLDI, CLAUDIO;BROFFERIO, CHIARA;Canonica, L;CAPELLI, SILVIA;CARRETTONI, MARCO ANDREA;CLEMENZA, MASSIMILIANO;Cremonesi, O;FERRI, ELENA;FIORINI, ETTORE;GIACHERO, ANDREA;GIRONI, LUCA;MAIANO, CECILIA GIOVANNA;NUCCIOTTI, ANGELO ENRICO LODOVICO;PATTAVINA, LUCA MARIA;PAVAN, MAURA;Pessina, G;Previtali, E;SISTI, MONICA;
2012
Abstract
The CUORICINO experiment was an array of 62 TeO 2 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)
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