1. Measurement of the 2νββ Decay Half-Life of Te130 with CUORE
- Author
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V. Sharma, D. Speller, Deqing Fang, S. Morganti, J. Nikkel, S. H. Fu, P. T. Surukuchi, S. Zimmermann, Carlo Ligi, R. J. Creswick, A. Campani, L. Gironi, I. Nutini, C. Rosenfeld, J. Camilleri, Oliviero Cremonesi, Kai Vetter, P. Gorla, F. Ferroni, C. Tomei, Massimiliano Clemenza, Carlo Cosmelli, Monica Sisti, F. T. Avignone, B. S. Wang, A. Giuliani, Emanuele Ferri, C. Pagliarone, N. D. Scielzo, C. Brofferio, L. Pattavina, C. J. Davis, Silvia Capelli, S. Pozzi, F. Terranova, C. Nones, A. Puiu, Massimiliano Nastasi, S. Di Domizio, K. Wilson, Davide Chiesa, Lucia Canonica, A. Caminata, Ezio Previtali, Marco Pallavicini, C. Rusconi, B. Welliver, V. Dompè, F. Bellini, Jonathan Ouellet, G. Bari, H. Z. Huang, S. Pagan, Y. Mei, A. D'Addabbo, C. Bucci, L. Marini, T. D. Gutierrez, T. O'Donnell, J. Johnston, S. Copello, N. Moggi, Laura Cardani, Yu. G. Kolomensky, Luigi Cappelli, B. K. Fujikawa, Xiangyu Cao, G. Keppel, Samuele Sangiorgio, K. M. Heeger, A. Nucciotti, C. Alduino, S. Pirro, B. Schmidt, Stefano Zucchelli, S. Dell'Oro, Ke Han, Paolo Carniti, Reina H. Maruyama, Claudio Gotti, Stuart J. Freedman, M. Sakai, O. Azzolini, T. Napolitano, M. Pavan, N. Casali, James R. Wilson, G. Pessina, S. L. Wagaarachchi, V. Pettinacci, M. Vignati, M. Biassoni, I. Dafinei, E. Fiorini, Giovanni Benato, Yudi Ma, L. Pagnanini, Eric B. Norman, L. Taffarello, D. Q. Adams, K. Alfonso, D. Mayer, M. Faverzani, Lindley Winslow, Virendra Singh, L. Ma, C. Pira, G. Fantini, R. G. Huang, A. Branca, M. A. Franceschi, and A. Giachero
- Subjects
Physics ,Nuclear physics ,CUORE ,Double beta decay ,0103 physical sciences ,General Physics and Astronomy ,Half-life ,High Energy Physics::Experiment ,010306 general physics ,01 natural sciences ,Spectral line - Abstract
We measured two-neutrino double beta decay of $^{130}$Te using an exposure of 300.7 kg$\cdot$yr accumulated with the CUORE detector. Using a Bayesian analysis to fit simulated spectra to experimental data, it was possible to disentangle all the major background sources and precisely measure the two-neutrino contribution. The half-life is in agreement with past measurements with a strongly reduced uncertainty: $T^{2\nu}_{1/2} = 7.71^{+0.08}_{-0.06}\mathrm{(stat.)}^{+0.12}_{-0.15}\mathrm{(syst.)}\times10^{20}$ yr. This measurement is the most precise determination of the $^{130}$Te 2$\nu\beta\beta$ decay half-life to date.
- Published
- 2021