1. First Results from CUORE: A Search for Lepton Number Violation via 0νββ Decay of Te130
- Author
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R. Gaigher, Massimiliano Clemenza, Carlo Cosmelli, Marisa Pedretti, M. M. Deninno, C. Nones, F. Rimondi, R. Cereseto, I. Dafinei, C. Brofferio, G. Pessina, K. Wilson, Davide Chiesa, A. Caminata, Ezio Previtali, Marco Pallavicini, Jonathan Ouellet, Y. G. Ma, G. Bari, B. Welliver, C. Crescentini, H. Z. Huang, Jeffrey W. Beeman, M. Capodiferro, N. D. Scielzo, G. Keppel, K. E. Lim, E. V. Hansen, A. Bersani, Lucia Canonica, Stefano Dell'Oro, J. Schmidt, L. Ioannucci, S. Di Domizio, V. Pettinacci, F. Bellini, X. Liu, N. Casali, D. D'Aguanno, L. Gladstone, F. Bragazzi, D. Schaeffer, A. Giuliani, M. Guerzoni, P. J. Mosteiro, J. Wallig, C. Maiano, C. Zarra, Laura Cardani, I. C. Bandac, S. S. Nagorny, M. Pavan, R. J. Creswick, N. Chott, B. K. Fujikawa, C. Rusconi, R. Hennings-Yeomans, S. L. Wagaarachchi, Eric B. Norman, C. Pagliarone, M. Vignati, B. X. Zhu, C. Martinez Amaya, C. Arnaboldi, Lindley Winslow, R. W. Kadel, Stefano Zucchelli, S. Zimmermann, K. Alfonso, F. Reindl, M. L. Di Vacri, M. Maino, C. Rossi, M. Faverzani, M. Iannone, C. Bucci, T. D. Gutierrez, Miriam Lucio Martinez, Irene Nutini, Vladimir Datskov, B. S. Wang, G. Ventura, L. Tatananni, A. Chiarini, F. Stivanello, S. Copello, T. I. Banks, Paolo Carniti, C. Bulfon, M. Balata, L. Pattavina, C. Salvioni, L. Zanotti, Jeremy S. Cushman, L. Gironi, G. Piperno, M. Tenconi, F. T. Avignone, F. Orio, Claudio Gotti, M. Cariello, L. Taffarello, B. Schmidt, V. Novati, Virendra Singh, Oliviero Cremonesi, J. Goett, Guimin Zhang, Y. Mei, C. Pira, M. Tessaro, E. Andreotti, O. Azzolini, L. Di Paolo, A. D'Addabbo, Larissa M. Ejzak, M. Sakai, Silvia Capelli, S. Pirro, Xi-Guang Cao, Massimiliano Nastasi, Carlo Ligi, M. Barucci, D. Biare, K. M. Heeger, M. Carrettoni, C. Rosenfeld, P. Gorla, F. Ferroni, C. Tomei, A. Bryant, Emanuele Ferri, Eugene E. Haller, G. Ceruti, C. J. Davis, A. Camacho, L. Kogler, S. Morganti, F. Terranova, S. Pozzi, E. Olivieri, James R. Wilson, E. Fiorini, A. Pelosi, Alan R. Smith, Ke Han, A. Branca, Reina H. Maruyama, N. Moggi, H. W. Wang, Stuart J. Freedman, T. O'Donnell, A. Leder, L. Risegari, Samuele Sangiorgio, Stefano Nisi, T. Wise, A. Nucciotti, M. Sisti, C. Alduino, D. Santone, Yu. G. Kolomensky, Luigi Cappelli, F. Alessandria, R. Pedrotta, D. Conventi, L. Marini, Kevin Hickerson, C. Guandalini, E. Sala, V. Palmieri, A. Giachero, T. Napolitano, D. Q. Fang, M. Biassoni, A. Buccheri, M. Olcese, F. Del Corso, R. Faccini, Giovanni Benato, L. Cassina, A. Drobizhev, D. Orlandi, and M. A. Franceschi
- Subjects
Physics ,Particle physics ,010308 nuclear & particles physics ,Bolometer ,Statistical sensitivity ,General Physics and Astronomy ,01 natural sciences ,Lepton number ,law.invention ,MAJORANA ,Full width at half maximum ,CUORE ,law ,Double beta decay ,0103 physical sciences ,Neutrino ,010306 general physics - Abstract
The CUORE experiment, a ton-scale cryogenic bolometer array, recently began operation at the Laboratori Nazionali del Gran Sasso in Italy. The array represents a significant advancement in this technology, and in this work we apply it for the first time to a high-sensitivity search for a lepton-number-violating process: ^{130}Te neutrinoless double-beta decay. Examining a total TeO_{2} exposure of 86.3 kg yr, characterized by an effective energy resolution of (7.7±0.5) keV FWHM and a background in the region of interest of (0.014±0.002) counts/(keV kg yr), we find no evidence for neutrinoless double-beta decay. Including systematic uncertainties, we place a lower limit on the decay half-life of T_{1/2}^{0ν}(^{130}Te)>1.3×10^{25} yr (90% C.L.); the median statistical sensitivity of this search is 7.0×10^{24} yr. Combining this result with those of two earlier experiments, Cuoricino and CUORE-0, we find T_{1/2}^{0ν}(^{130}Te)>1.5×10^{25} yr (90% C.L.), which is the most stringent limit to date on this decay. Interpreting this result as a limit on the effective Majorana neutrino mass, we find m_{ββ}
- Published
- 2018
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