New results from the CUORE experiment

Andrea Giachero, Douglas Q. Adams, Christopher Alduino, Krystal Alfonso, Frank T. Avignone III, Oscar Azzolini, Giacomo Bari, Fabio Bellini, Giovanni Benato, Matteo Biassoni, Antonio Branca, Chiara Brofferio (+101 others)
2021 Proceedings of 40th International Conference on High Energy physics — PoS(ICHEP2020)   unpublished
The Cryogenic Underground Observatory for Rare Events (CUORE) is the first cryogenic experiment searching for neutrinoless double-beta (0 ) decay that has been able to reach the one-ton scale. The detector, located at the Laboratori Nazionali del Gran Sasso in Italy, consists of an array of 988 TeO 2 crystals arranged in a compact cylindrical structure of 19 towers. Following the completion of the detector construction in August 2016, CUORE began its first physics data run in 2017 at a base
more » ... erature of about 10 mK. Following multiple optimization campaigns in 2018, CUORE is currently in stable operating mode. In 2019, CUORE released its 2 nd result of the search for 0 with a TeO 2 exposure of 372.5 kg·yr and a median exclusion sensitivity to a 130 Te 0 decay half-life of 1.7 · 10 25 yr. We find no evidence for 0 decay and set a 90% C.I. (credibility interval) Bayesian lower limit of 3.2 · 10 25 yr on the 130 Te 0 decay half-life. In this work, we present the current status of CUORE's search for 0 , as well as review the detector performance. Finally, we give an update of the CUORE background model and the measurement of the 130 Te two neutrino double-beta (2 ) decay half-life. ICHEP2020
doi:10.22323/1.390.0133 fatcat:eckshtuiqjgcjmw62rrvn6736y