DOE OSTI · 1762239
Status and results from the CUORE experiment
Abstract
The Cryogenic Underground Observatory for Rare Events (CUORE) is a tonne-scale cryogenic experiment located at the Laboratori Nazionali del Gran Sasso that exploits bolometric technique to search for neutrinoless double beta decay [0$vββ$] of 130 Te. The detector consists of a segmented array of 988 natural TeO 2 cubic crystals arranged in a cylindrical compact structure of 19 towers. The detector construction was completed in August 2016 and data taking started in Spring 2017. Here, we present a brief description of the bolometric technique for rare events search and the CUORE detector, then we concentrate on the data analysis results. In this respect, we focus on the procedure for data processing and on the first 0$vββ$ results we obtained from a total TeO 2 exposure of 86.3 kg · yr. Next, we illustrate the main background sources and the CUORE background model, from which we obtain the most precise measurement of 130 Te 2$vββ$ half-life to date. Finally, we discuss the improvements achieved with 2018 and 2019 detector optimization campaigns and the current perspectives of our experiment.
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Campani, A., Adams, D. Q., Alduino, C., Alfonso, K., Avignone, F. T., Azzolini, O., Bari, G., Bellini, F., Benato, G., Biassoni, M., Branca, A., Brofferio, C., Bucci, C., Caminata, A., Canonica, L., Cao, X. G., Capelli, S., Cappelli, L., Cardani, L., Carniti, P., Casali, N., Chiesa, D., Chott, N., Clemenza, M., Copello, S., Cosmelli, C., Cremonesi, O., Creswick, R. J., D’Addabbo, A., D’Aguanno, D., Dafinei, I., Davis, C. J., Dell’Oro, S., Di Domizio, S., Dompè, V., Fang, D. Q., Fantini, G., Faverzani, M., Ferri, E., Ferroni, F., Fiorini, E., Franceschi, M. A., Freedman, S. J., Fujikawa, B. K., Giachero, A., Gironi, L., Giuliani, A., Gorla, P., Gotti, C., Gutierrez, T. D., Han, K., Heeger, K. M., Huang, R. G., Huang, H. Z., Johnston, J., Keppel, G., Kolomensky, Yu. G., Ligi, C., Ma, Y. G., Ma, L., Marini, L., Maruyama, R. H., Mei, Y., Moggi, N., Morganti, S., Napolitano, T., Nastasi, M., Nikkel, J., Nones, C., Norman, E. B., Novati, V., Nucciotti, A., Nutini, I., O’Donnell, T., Ouellet, J. L., Pagliarone, C. E., Pagnanini, L., Pallavicini, M., Pattavina, L., Pavan, M., Pessina, G., Pettinacci, V., Pira, C., Pirro, S., Pozzi, S., Previtali, E., Puiu, A., Rosenfeld, C., Rusconi, C., Sakai, M., Sangiorgio, S., Schmidt, B., Scielzo, N. D., Sharma, V., Singh, V., Sisti, M., Speller, D., Surukuchi, P. T., Taffarello, L., Terranova, F.. 2020-12-23. Status and results from the CUORE experiment. https://doi.org/10.1142/s0217751x20440169
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