The Cryogenic Underground Observatory for Rare Events (CUORE) is a tonne-scalecryogenic experiment located at the Laboratori Nazionali del Gran Sasso that exploitsbolometric technique to search for neutrinoless double beta decay (0νββ) of130Te. Thedetector consists of a segmented array of 988 natural TeO2cubic crystals arranged ina cylindrical compact structure of 19 towers. The detector construction was completedin August 2016 and data taking started in Spring 2017. In this work, we present abrief description of the bolometric technique for rare events search and the CUOREdetector, then we concentrate on the data analysis results. In this respect, we focus onthe procedure for data processing and on the first 0νββresults we obtained from a totalTeO2exposure of 86.3 kg·yr. Next, we illustrate the main background sources andthe CUORE background model, from which we obtain the most precise measurement of130Te 2νββhalf-life to date. Finally, we discuss the improvements achieved with 2018 and2019 detector optimization campaigns and the current perspectives of our experiment.
Status and results from the CUORE experiment
Cappelli L.;D'Aguanno D.;Pagliarone C. E.
;
2020-01-01
Abstract
The Cryogenic Underground Observatory for Rare Events (CUORE) is a tonne-scalecryogenic experiment located at the Laboratori Nazionali del Gran Sasso that exploitsbolometric technique to search for neutrinoless double beta decay (0νββ) of130Te. Thedetector consists of a segmented array of 988 natural TeO2cubic crystals arranged ina cylindrical compact structure of 19 towers. The detector construction was completedin August 2016 and data taking started in Spring 2017. In this work, we present abrief description of the bolometric technique for rare events search and the CUOREdetector, then we concentrate on the data analysis results. In this respect, we focus onthe procedure for data processing and on the first 0νββresults we obtained from a totalTeO2exposure of 86.3 kg·yr. Next, we illustrate the main background sources andthe CUORE background model, from which we obtain the most precise measurement of130Te 2νββhalf-life to date. Finally, we discuss the improvements achieved with 2018 and2019 detector optimization campaigns and the current perspectives of our experiment.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
