D. Q. Adams, C. Alduino, K. Alfonso, F. T. Avignone, O Azzolini, G. Bari, F. Bellini, G Benato, M. Beretta, M Biassoni, A. Branca, C Brofferio, C. Bucci, J Camilleri, A Caminata, A. Campani, Jun Cao, S. Capelli, C. Capelli, L Cappelli, L. Cardani, P. Carniti, N. Casali, E. Celi, D. Chiesa, M. Clemenza, S. Copello, O. Cremonesi, R. J. Creswick, A. D’Addabbo, I. Dafinei, F. Del Corso, S. Dell’Oro, S. Di Domizio, S Di Lorenzo, T. Dixon, V. Dompè, D. Q. Fang, G. Fantini, M. Faverzani, E. Ferri, F. Ferroni, E. Fiorini, A. Franceschi, S. J. Freedman, S. Fu, B. K. Fujikawa, S. Ghislandi, A Giachero, M. Girola, L. Gironi, Adolfo Giuliani, P. Gorla, C. Gotti, P.V. Guillaumon, T. D. Gutierrez, K. Han, E. V. Hansen, K. M. Heeger, D. Helis, H. Z. Huang, G. Keppel, Yu. G. Kolomensky, Robert G. Kowalski, R. Liu, Long Ma, Y. G., L. Marini, R.H Maruyama, D. Mayer, Y. Mei, Michael N. Moore, T Napolitano, M. Nastasi, C. Nones, E. B. Norman, A. Nucciotti, I. Nutini, T. O’Donnell, M. Olmi, B. Tapia Oregui, J. L. Ouellet, S. Pagan, C. Pagliarone, L. Pagnanini, M. Pallavicini, L. Pattavina, M. Pavan, G. Pessina, V Pettinacci, C. Pira, S. Pirro, I. Ponce, E. G. Pottebaum, S. Pozzi, E Previtali, A. Puiu, S Quitadamo, A. Ressa, C Rosenfeld
Matter-antimatter asymmetry underlines the incompleteness of the current understanding of particle physics. Neutrinoless double-beta decay (0νββ) may help explain this asymmetry while unveiling the Majorana nature of the neutrino. The CUORE (Cryogenic Underground Observatory for Rare Events) experiment searches for 0νββ of 130 Te using a tonne-scale cryogenic calorimeter operated at milli-kelvin temperatures. We report no evidence of 0νββ and place a lower limit on the half-life of T 1/2 > 3.5 × 10 25 years (90% credibility interval) with over 2 tonne·years of TeO 2 exposure. The tools and techniques developed for this result and the 5-year stable operation of nearly 1000 detectors demonstrate crucial infrastructure for future-generation experiments capable of searching for 0νββ across multiple isotopes.