We report the present results of CUORICINO, a search for neutrinoless double-beta (0nubb) 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 0nubb decay was found and a new lower limit, T1/2 > 1.8 10**24 yr (90% C.L.) is set, corresponding to mnu < 0.2 to 1.1 eV, depending on the theoretical nuclear matrix elements used in the analysis.
New Limit on the Neutrinoless ββ Decay of Te130
PALLAVICINI, MARCO;
2005-01-01
Abstract
We report the present results of CUORICINO, a search for neutrinoless double-beta (0nubb) 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 0nubb decay was found and a new lower limit, T1/2 > 1.8 10**24 yr (90% C.L.) is set, corresponding to mnu < 0.2 to 1.1 eV, depending on the theoretical nuclear matrix elements used in the analysis.
File in questo prodotto:
Non ci sono file associati a questo prodotto.
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
