First results from CUORE: A search for lepton number violation via 0vßß decay of 130Te

Alduino, C. ; Alessandria, F. ; Alfonso, K. ; Andreotti, E. ; Arnaboldi, C. ; Avignone, F.T. ; III ; Azzolini, O. ; Balata, M. ; Bandac, I. ; Banks, T.I. ; Bari, G. ; Barucci, M. ; Beeman, J.W. ; Bellini, F. ; Benato, G. ; Bersani, A. ; Biare, D. ; Biassoni, M. ; Bragazzi, F. ; Branca, A. ; Brofferio, C. ; Bryant, A. ; Buccheri, A. ; Bucci, C. ; Bulfon, C. ; Camacho, A. ; Caminata, A. ; Canonica, L. ; Cao, X.G. ; Capelli, S. ; Capodiferro, M. ; Cappelli, L. ; Cardani, L. ; Cariello, M. ; Carniti, P. ; Carrettoni, M. ; Casali, N. ; Cassina, L. ; Cereseto, R. ; Ceruti, G. ; Chiarini, A. ; Chiesa, D. ; Chott, N. ; Clemenza, M. ; Conventi, D. ; Copello, S. ; Cosmelli, C. ; Cremonesi, O. ; Crescentini, C. ; Creswick, R.J. ; Cushman, J.S. ; D''Addabbo, A. ; D''Aguanno, D. ; Dafinei, I. ; Datskov, V. ; Davis, C.J. ; Del Corso, F. ; Dell''Oro, S. ; Deninno, M.M. ; Di Domizio, S. ; Di Vacri, M.L. ; Di Paolo, L. ; Drobizhev, A. ; Ejzak, L. ; Faccini, R. ; Fang, D.Q. ; Faverzani, M. ; Ferri, E. ; Ferroni, F. ; Fiorini, E. ; Franceschi, M.A. ; Freedman, S.J. ; Fujikawa, B.K. ; Gaigher, R. ; Giachero, A. ; Gironi, L. ; Giuliani, A. ; Gladstone, L. ; Goett, J. ; Gorla, P. ; Gotti, C. ; Guandalini, C. ; Guerzoni, M. ; Gutierrez, T.D. ; Haller, E.E. ; Han, K. ; Hansen, E.V. ; Heeger, K.M. ; Hennings-Yeomans, R. ; Hickerson, K.P. ; Huang, H.Z. ; Iannone, M. ; Ioannucci, L. ; Kadel, R. ; Keppel, G. ; Kogler, L. ; Kolomensky, Y.G. ; Leder, A. ; Ligi, C. ; Lim, K.E. ; Liu, X. ; Ma, Y.G. ; Maiano, C. ; Maino, M. ; Marini, L. ; Martinez, M. (Universidad de Zaragoza) ; Amaya, C.M. ; Maruyama, R.H. ; Mei, Y. ; Moggi, N. ; Morganti, S. ; Mosteiro, P.J. ; Nagorny, S.S. ; Napolitano, T. ; Nastasi, M. ; Nisi, S. ; Nones, C. ; Norman, E.B. ; Novati, V. ; Nucciotti, A. ; Nutini, I. ; O''Donnell, T. ; Olcese, M. ; Olivieri, E. ; Orio, F. ; Orlandi, D. ; Ouellet, J.L. ; Pagliarone, C.E. ; Pallavicini, M. ; Palmieri, V. ; Pattavina, L. ; Pavan, M. ; Pedretti, M. ; Pedrotta, R. ; Pelosi, A. ; Pessina, G. ; Pettinacci, V. ; Piperno, G. ; Pira, C. ; Pirro, S. ; Pozzi, S. ; Previtali, E. ; Reindl, F. ; Rimondi, F. ; Risegari, L. ; Rosenfeld, C. ; Rossi, C. ; Rusconi, C. ; Sakai, M. ; Sala, E. ; Salvioni, C. ; Sangiorgio, S. ; Santone, D. ; Schaeffer, D. ; Schmidt, B. ; Schmidt, J. ; Scielzo, N.D. ; Singh, V. ; Sisti, M. ; Smith, A.R. ; Stivanello, F. ; Taffarello, L. ; Tatananni, L. ; Tenconi, M. ; Terranova, F. ; Tessaro, M. ; Tomei, C. ; Ventura, G. ; Vignati, M. ; Wagaarachchi, S.L. ; Wallig, J. ; Wang, B.S. ; Wang, H.W. ; Welliver, B. ; Wilson, J. ; Wilson, K. ; Winslow, L.A. ; Wise, T. ; Zanotti, L. ; Zarra, C. ; Zhang, G.Q. ; Zhu, B.X. ; Zimmermann, S. ; Zucchelli, S.
First results from CUORE: A search for lepton number violation via 0vßß decay of 130Te
Resumen: 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-numberviolating process: 130Te neutrinoless double-beta decay. Examining a total TeO2 exposure of 86.3 kg yr, characterized by an effective energy resolution of d7.7 ± 0.5T keV FWHM and a background in the region of interest of d0.014 ± 0.002T counts=dkeV kg yrT, we find no evidence for neutrinoless double-beta decay. Including systematic uncertainties, we place a lower limit on the decay half-life of T0¿ 1/2 (130Te) > 1.3 × 1025 yr (90% C.L.); the median statistical sensitivity of this search is 7.0 × 1024 yr. Combining this result with those of two earlier experiments, Cuoricino and CUORE-0, we find T0¿ 1/2 (130Te) > 1.5 × 1025 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 mßß < (110 - 520) meV, where the range reflects the nuclear matrix element estimates employed.
Idioma: Inglés
DOI: 10.1103/PhysRevLett.120.132501
Año: 2018
Publicado en: Physical Review Letters 120, 13 (2018), 132501 [8 pp]
ISSN: 0031-9007

Factor impacto JCR: 9.227 (2018)
Categ. JCR: PHYSICS, MULTIDISCIPLINARY rank: 6 / 81 = 0.074 (2018) - Q1 - T1
Factor impacto SCIMAGO: 3.571 - Physics and Astronomy (miscellaneous) (Q1)

Tipo y forma: Article (Published version)
Área (Departamento): Área Física Teórica (Dpto. Física Teórica)

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