We report the present results of CUORICINO, a search for neutrinoless double-beta (0νββ) decay of 130Te. The detector is an array of 62 TeO2 bolometers with a total active mass of 40.7 kg. The array is cooled by a dilution refrigerator shielded from environmental radioactivity and energetic neutrons, operated at ∼8  mK in the Gran Sasso Underground Laboratory. No evidence for (0νββ) decay was found and a new lower limit, T1/20ν≥1.8×1024  yr (90% C.L.) is set, corresponding to ⟨mν⟩≤0.2 to 1.1 eV, depending on the theoretical nuclear matrix elements used in the analysis.

A New Limit on the neutrinoless beta-beta-decay of Te-130

GIULIANI, ANDREA ERNESTO GUIDO;PEDRETTI, MARISA;
2005-01-01

Abstract

We report the present results of CUORICINO, a search for neutrinoless double-beta (0νββ) decay of 130Te. The detector is an array of 62 TeO2 bolometers with a total active mass of 40.7 kg. The array is cooled by a dilution refrigerator shielded from environmental radioactivity and energetic neutrons, operated at ∼8  mK in the Gran Sasso Underground Laboratory. No evidence for (0νββ) decay was found and a new lower limit, T1/20ν≥1.8×1024  yr (90% C.L.) is set, corresponding to ⟨mν⟩≤0.2 to 1.1 eV, depending on the theoretical nuclear matrix elements used in the analysis.
2005
Arnaboldi, C.; Artusa, D. R.; Avignone, F. T.; Balata, M.; Bandac, I.; Barucci, M.; Beeman, J. W.; Brofferio, C.; Bucci, C.; Capelli, S.; Carbone, L.;...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11383/1504944
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