PoS - Proceedings of Science
Volume 390 - 40th International Conference on High Energy physics (ICHEP2020) - Parallel: Neutrino Physics
New results from the CUORE experiment
A. Giachero,* D.Q. Adams, C. Alduino, K. Alfonso, F.T. Avignone III, O. Azzolini, G. Bari, F. Bellini, G. Benato, M. Biassoni, A. Branca, C. Brofferio, C. Bucci, J. Camilleri, A. Caminata, A. Campani, L. Canonica, X.G. Cao, S. Capelli, L. Cappelli, L. Cardani, P. Carniti, N. Casali, D. Chiesa, N. Chott, M. Clemenza, S. Copello, C. Cosmelli, O. Cremonesi, R.J. Creswick, A. D'Addabbo, I. Dafinei, C.J. Davis, S. Dell'Oro, S. Di Domizio, V. Dompè, D. Fang, G. Fantini, M. Faverzani, E. Ferri, F. Ferroni, E. Fiorini, M.A. Franceschi, S.J. Freedman, S.H. Fu, B.K. Fujikawa, L. Gironi, A. Giuliani, P. Gorla, C. Gotti, T.D. Gutierrez, K. Han, K.M. Heeger, R.G. Huang, H.Z. Huang, J. Johnston, G. Keppel, Y.G. Kolomensky, C. Ligi, L. Ma, Y.G. Ma, L. Marini, R.H. Maruyama, D. Mayer, Y. Mei, N. Moggi, S. Morganti, T. Napolitano, M. Nastasi, J. Nikkel, C. Nones, E. Norman, A. Nucciotti, I. Nutini, T. O'Donnell, J. Ouellet, S. Pagan, C.E. Pagliarone, L. Pagnanini, M. Pallavicini, L.M. Pattavina, M. Pavan, G. Pessina, V. Pettinacci, C. Pira, S. Pirro, S. Pozzi, E. Previtali, A. Puiu, C. Rosenfeld, C. Rusconi, M. Sakai, S. Sangiorgio, B. Schmidt, N.D. Scielzo, V. Sharma, V. Singh, M. Sisti, D. Speller, P.T. Surukuchi, L. Taffarello, F. Terranova, C. Tomei, K. Vetter, M. Vignati, S. Wagaarachchi, B.S. Wang, B. Welliver, J. Wilson, K. Wilson, L. Winslow, S. Zimmermann, S. Zucchelli
*corresponding author
Full text: Not available
Abstract
The Cryogenic Underground Observatory for Rare Events (CUORE) is the first cryogenic experiment searching for neutrinoless double-beta ($0\nu\beta\beta$) 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 temperature of about 10 mK. Following multiple optimization campaigns in 2018, CUORE is currently in stable operating mode. In 2019, CUORE released its 2\textsuperscript{nd} result of the search for $0\nu\beta\beta$ with a TeO$_2$ exposure of 372.5 kg$\cdot$yr and a median exclusion sensitivity to a $^{130}$Te $0\nu\beta\beta$ decay half-life of $1.7\cdot 10^{25}$ yr. We find no evidence for $0\nu\beta\beta$ decay and set a 90\% C.I. (credibility interval) Bayesian lower limit of $3.2\cdot 10^{25}$ yr on the $^{130}$Te $0\nu\beta\beta$ decay half-life. In this work, we present the current status of CUORE's search for $0\nu\beta\beta$, 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 ($2\nu\beta\beta$) decay half-life
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