Cryogenic Underground Observatory for Rare Events

Where should the field of double beta decay go from the present situation? Neutrino oscillation experiments gives clear evidence that neutrinos oscillate. A number of recent theoretical interpretations of these experiments data imply that the effective Majorana mass of the electron neutrino (as measured in neutrinoless DBD) could be in the range 0.01 eV to the present bounds. Considering this range, could a next generation 0nDBD experiment detect it? If so, what technique would be the best for a possible discovery experiment? CUORE, a proposed array of about 1000, 750 g TeO2 bolometers, represents one of the best approaches presently available. It can be launched without isotopicenrichment nor extensive R&D , and it can achieve next generation sensitivity. The CUORE project, originates as a natural extension of the succesfull MiDBD 130Te experiment where for the first time a large array of bolometers was used to search for 0nDBD . The good results obtained so far prove that the bolometric technique, although novel is competitive and alternative to the traditional calorimetric Ge technique.

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Classification: Neutrino (flavor) experiments › Neutrinoless double beta decay

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