| Literature DB >> 26382673 |
K Alfonso1, D R Artusa2,3, F T Avignone2, O Azzolini4, M Balata3, T I Banks5,6, G Bari7, J W Beeman8, F Bellini9,10, A Bersani11, M Biassoni12,13, C Brofferio12,13, C Bucci3, A Caminata11, L Canonica3, X G Cao14, S Capelli12,13, L Cappelli3,15, L Carbone13, L Cardani9,10, N Casali9,10, L Cassina12,13, D Chiesa12,13, N Chott2, M Clemenza12,13, S Copello11,16, C Cosmelli9,10, O Cremonesi13, R J Creswick2, J S Cushman17, I Dafinei10, A Dally18, S Dell'Oro3,19, M M Deninno7, S Di Domizio11,16, M L Di Vacri3,20, A Drobizhev5,6, L Ejzak18, D Q Fang14, M Faverzani12,13, G Fernandes11,16, E Ferri12,13, F Ferroni9,10, E Fiorini12,13, S J Freedman5,6, B K Fujikawa6, A Giachero12,13, L Gironi12,13, A Giuliani21, P Gorla3, C Gotti12,13, T D Gutierrez22, E E Haller8,23, K Han6,17, E Hansen1,24, K M Heeger17, R Hennings-Yeomans5,6, K P Hickerson1, H Z Huang1, R Kadel25, G Keppel4, Yu G Kolomensky5,25, K E Lim17, X Liu1, Y G Ma14, M Maino12,13, M Martinez9,26, R H Maruyama17, Y Mei6, N Moggi7,27, S Morganti10, S Nisi3, C Nones28, E B Norman29,30, A Nucciotti12,13, T O'Donnell5,6, F Orio10, D Orlandi3, J L Ouellet5,6, C E Pagliarone3,15, M Pallavicini11,16, V Palmieri4, L Pattavina3, M Pavan12,13, M Pedretti29, G Pessina13, V Pettinacci10, G Piperno9,10, S Pirro3, S Pozzi12,13, E Previtali13, C Rosenfeld2, C Rusconi13, E Sala12,13, S Sangiorgio29, D Santone3,20, N D Scielzo29, M Sisti12,13, A R Smith6, L Taffarello31, M Tenconi21, F Terranova12,13, C Tomei10, S Trentalange1, G Ventura32,33, M Vignati10, S L Wagaarachchi5,6, B S Wang29,30, H W Wang14, L Wielgus18, J Wilson2, L A Winslow24, T Wise17,18, L Zanotti12,13, C Zarra3, G Q Zhang14, B X Zhu1, S Zucchelli7,34.
Abstract
We report the results of a search for neutrinoless double-beta decay in a 9.8 kg yr exposure of (130)Te using a bolometric detector array, CUORE-0. The characteristic detector energy resolution and background level in the region of interest are 5.1±0.3 keV FWHM and 0.058±0.004(stat)±0.002(syst)counts/(keV kg yr), respectively. The median 90% C.L. lower-limit half-life sensitivity of the experiment is 2.9×10(24) yr and surpasses the sensitivity of previous searches. We find no evidence for neutrinoless double-beta decay of (130)Te and place a Bayesian lower bound on the decay half-life, T(1/2)(0ν)>2.7×10(24) yr at 90% C.L. Combining CUORE-0 data with the 19.75 kg yr exposure of (130)Te from the Cuoricino experiment we obtain T(1/2)(0ν)>4.0×10(24) yr 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, m(ββ)<270-760 meV.Year: 2015 PMID： 26382673 DOI： 10.1103/PhysRevLett.115.102502
Source DB: PubMed Journal: Phys Rev Lett ISSN： 0031-9007 Impact factor: 9.161