Search for Neutrinoless Double-Beta Decay of Te 130 with CUORE-0

K. Alfonso, D. R. Artusa, F. T. Avignone, O. Azzolini, M. Balata, T. I. Banks, G. Bari, J. W. Beeman, F. Bellini, A. Bersani, M. Biassoni, C. Brofferio, C. Bucci, A. Caminata, L. Canonica, X. G. Cao, S. Capelli, L. Cappelli, L. Carbone, L. CardaniN. Casali, L. Cassina, D. Chiesa, N. Chott, M. Clemenza, S. Copello, C. Cosmelli, O. Cremonesi, R. J. Creswick, J. S. Cushman, I. Dafinei, A. Dally, S. Dell'Oro, M. M. Deninno, S. Di Domizio, M. L. Di Vacri, A. Drobizhev, L. Ejzak, D. Q. Fang, M. Faverzani, G. Fernandes, E. Ferri, F. Ferroni, E. Fiorini, S. J. Freedman, B. K. Fujikawa, A. Giachero, L. Gironi, A. Giuliani, P. Gorla, C. Gotti, T. D. Gutierrez, E. E. Haller, K. Han, E. Hansen, K. M. Heeger, R. Hennings-Yeomans, K. P. Hickerson, H. Z. Huang, R. Kadel, G. Keppel, Yu G. Kolomensky, K. E. Lim, X. Liu, Y. G. Ma, M. Maino, M. Martinez, R. H. Maruyama, Y. Mei, N. Moggi, S. Morganti, S. Nisi, C. Nones, E. B. Norman, A. Nucciotti, T. O'Donnell, F. Orio, D. Orlandi, J. L. Ouellet, C. E. Pagliarone, M. Pallavicini, V. Palmieri, L. Pattavina, M. Pavan, M. Pedretti, G. Pessina, V. Pettinacci, G. Piperno, S. Pirro, Stefano Pozzi, E. Previtali, C. Rosenfeld, C. Rusconi, E. Sala, S. Sangiorgio, D. Santone, N. D. Scielzo, M. Sisti, A. R. Smith, L. Taffarello, M. Tenconi, F. Terranova, C. Tomei, S. Trentalange, G. Ventura, M. Vignati, S. L. Wagaarachchi, B. S. Wang, H. W. Wang, L. Wielgus, J. Wilson, L. A. Winslow, T. Wise, L. Zanotti, C. Zarra, G. Q. Zhang, B. X. Zhu, S. Zucchelli

Research output: Contribution to journalArticle

164 Scopus citations

Abstract

We report the results of a search for neutrinoless double-beta decay in a 9.8 kg yr exposure of Te130 using a bolometric detector array, CUORE-0. The characteristic detector energy resolution and background level in the region of interest are 5.1±0.3keV FWHM and 0.058±0.004(stat)±0.002(syst)counts/(keVkgyr), respectively. The median 90% C.L. lower-limit half-life sensitivity of the experiment is 2.9×1024yr and surpasses the sensitivity of previous searches. We find no evidence for neutrinoless double-beta decay of Te130 and place a Bayesian lower bound on the decay half-life, T1/20ν>2.7×1024yr at 90% C.L. Combining CUORE-0 data with the 19.75 kg yr exposure of Te130 from the Cuoricino experiment we obtain T1/20ν>4.0×1024yr at 90% C.L. (Bayesian), the most stringent limit to date on this half-life. Using a range of nuclear matrix element estimates we interpret this as a limit on the effective Majorana neutrino mass, mββ<270-760meV.

Original languageEnglish (US)
Article number102502
JournalPhysical Review Letters
Volume115
Issue number10
DOIs
StatePublished - Sep 3 2015
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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    Alfonso, K., Artusa, D. R., Avignone, F. T., Azzolini, O., Balata, M., Banks, T. I., Bari, G., Beeman, J. W., Bellini, F., Bersani, A., Biassoni, M., Brofferio, C., Bucci, C., Caminata, A., Canonica, L., Cao, X. G., Capelli, S., Cappelli, L., Carbone, L., ... Zucchelli, S. (2015). Search for Neutrinoless Double-Beta Decay of Te 130 with CUORE-0. Physical Review Letters, 115(10), [102502]. https://doi.org/10.1103/PhysRevLett.115.102502