We present a search for b+/EC double beta decay of 120Te performed with the CUORICINO experiment, an array of TeO2 cryogenic bolometers. After collecting 0.0573 kg×y of 120Te, we see no evidence of a signal and therefore set the following limits on the half-life: T½ > 1.9×10^21 y at 90% C.L. for the 0n mode and T½ > 7.6×10^19 y at 90% C.L. for the 2n mode. These results improve the existing limits by almost three orders of magnitude (four in the case of 0n mode).
Andreotti, E., Arnaboldi, C., Avignone III, F., Balata, M., Bandac, I., Barucci, M., et al. (2011). Search for β+/EC double beta decay of 120Te. ASTROPARTICLE PHYSICS, 34(8), 643-648 [10.1016/j.astropartphys.2010.12.011].
Search for β+/EC double beta decay of 120Te
BROFFERIO, CHIARA;Canonica, L;CAPELLI, SILVIA;CLEMENZA, MASSIMILIANO;Cremonesi, O;FERRI, ELENA;FIORINI, ETTORE;GIACHERO, ANDREA;GIRONI, LUCA;NUCCIOTTI, ANGELO ENRICO LODOVICO;Pattavina, LM;PAVAN, MAURA;Pessina, G;Previtali, E;SISTI, MONICA;
2011
Abstract
We present a search for b+/EC double beta decay of 120Te performed with the CUORICINO experiment, an array of TeO2 cryogenic bolometers. After collecting 0.0573 kg×y of 120Te, we see no evidence of a signal and therefore set the following limits on the half-life: T½ > 1.9×10^21 y at 90% C.L. for the 0n mode and T½ > 7.6×10^19 y at 90% C.L. for the 2n mode. These results improve the existing limits by almost three orders of magnitude (four in the case of 0n mode).
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