| Literature DB >> 32281829 |
D Q Adams1, C Alduino1, K Alfonso2, F T Avignone1, O Azzolini3, G Bari4, F Bellini5,6, G Benato7,8, M Biassoni9, A Branca9,10, C Brofferio9,10, C Bucci8, A Caminata11, A Campani11,12, L Canonica8,13, X G Cao14, S Capelli9,10, L Cappelli7,8,15, L Cardani6, P Carniti9,10, N Casali6, D Chiesa9,10, N Chott1, M Clemenza9,10, S Copello8,16, C Cosmelli5,6, O Cremonesi9, R J Creswick1, A D'Addabbo8, D D'Aguanno8,17, I Dafinei6, C J Davis18, S Dell'Oro19, S Di Domizio11,12, V Dompè8,16, D Q Fang14, G Fantini8,16, M Faverzani9,10, E Ferri9,10, F Ferroni6,16, E Fiorini9,10, M A Franceschi20, S J Freedman7,15, B K Fujikawa15, A Giachero9,10, L Gironi9,10, A Giuliani21, P Gorla8, C Gotti9,10, T D Gutierrez22, K Han23, K M Heeger18, R G Huang7, H Z Huang2, J Johnston13, G Keppel3, Yu G Kolomensky7,15, C Ligi20, Y G Ma14, L Ma2, L Marini7,15, R H Maruyama18, Y Mei15, N Moggi4,24, S Morganti6, T Napolitano20, M Nastasi9,10, J Nikkel18, C Nones25, E B Norman26,27, V Novati28, A Nucciotti9,10, I Nutini9,10, T O'Donnell19, J L Ouellet13, C E Pagliarone8,17, L Pagnanini9,10, M Pallavicini11,12, L Pattavina8, M Pavan9,10, G Pessina9, V Pettinacci6, C Pira3, S Pirro8, S Pozzi9,10, E Previtali9,10, A Puiu9,10, C Rosenfeld1, C Rusconi1,8, M Sakai7, S Sangiorgio26, B Schmidt15, N D Scielzo26, V Sharma19, V Singh7, M Sisti9,10, D Speller18, P T Surukuchi18, L Taffarello29, F Terranova9,10, C Tomei6, M Vignati6, S L Wagaarachchi7,15, B S Wang26,27, B Welliver15, J Wilson1, K Wilson1, L A Winslow13, L Zanotti9,10, S Zimmermann30, S Zucchelli4,24.
Abstract
We report new results from the search for neutrinoless double-beta decay in ^{130} Te with the CUORE detector. This search benefits from a fourfold increase in exposure, lower trigger thresholds, and analysis improvements relative to our previous results. We observe a background of (1.38±0.07)×10^{-2} counts/(keV kg yr)) in the 0νββ decay region of interest and, with a total exposure of 372.5 kg yr, we attain a median exclusion sensitivity of 1.7×10^{25} yr. We find no evidence for 0νββ decay and set a 90% credibility interval Bayesian lower limit of 3.2×10^{25} yr on the ^{130} Te half-life for this process. In the hypothesis that 0νββ decay is mediated by light Majorana neutrinos, this results in an upper limit on the effective Majorana mass of 75-350 meV, depending on the nuclear matrix elements used.Year: 2020 PMID： 32281829 DOI： 10.1103/PhysRevLett.124.122501
Source DB: PubMed Journal: Phys Rev Lett ISSN： 0031-9007 Impact factor: 9.161