CUORE and CUORE-0 experiments

Copello, S. and Alduino, C. and Alfonso, K.. and Artusa, D. R. and Avignone III, F. T. (2017) CUORE and CUORE-0 experiments. Il nuovo cimento C, 40 (1). pp. 1-5. ISSN 1826-9885

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Neutrino oscillation experiments proved that neutrinos have mass and this enhanced the interest in neutrinoless double-beta decay (0νββ). The observation of this very rare hypothetical decay would prove the leptonic number violation and would give us indications about neutrinos mass hierarchy and absolute mass scale. CUORE (Cryogenic Underground Observatory for Rare Events) is an array of 988 crystals of TeO2, for a total sensitive mass of 741kg. Its goal is the observation of 0νββ of 130Te. The crystals, placed into the a dilution cryostat, are operated as bolometers at a temperature close to 10mK. CUORE commissioning phase has been concluded recently in Gran Sasso National Laboratory, Italy, and data taking is expected to start in spring 2017. If target background rate is reached (0.01counts/day/keV/kg), the sensibility of CUORE will be, in five years of data taking, T1/2 - 1026years (1σ CL). In order to test the quality of materials and optimize the construction procedures, the collaboration realized CUORE-0, that took data from spring of 2013 to summer 2015. Here, after a brief description of CUORE, I report its commissioning status and CUORE-0 results.

Item Type: Article
Subjects: 500 Scienze naturali e Matematica > 530 Fisica
Depositing User: Marina Spanti
Date Deposited: 16 Nov 2020 21:10
Last Modified: 16 Nov 2020 21:10

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