New limit on the neutrinoless ßß decay of Te130
Year: 2005
Authors: Arnaboldi C., Artusa D.R., Avignone F.T., Balata M., Bandac I., Barucci M., Beeman J.W., Brofferio C., Bucci C., Capelli S., Carbone L., Cebrian S., Cremonesi O., Creswick R.J., De Waard A., Farach H.A., Fiorini E., Frossati G., Guardincerri E., Giuliani A., Gorla P., Haller E.E., McDonald R.J., Morales A., Norman E.B., Nucciotti A., Olivieri E., Pallavicini M., Palmieri E., Pasca E., Pavan M., Pedretti M., Pessina G., Pirro S., Previtali E., Risegari L., Rosenfeld C., Sangiorgio S., Sisti M., Smith A.R., Torres L., Ventura G.
Autors Affiliation: Dipartimento di Fisica, Università di Milano-Bicocca, INFN, Milan I-20126, Italy; Department of Physics and Astronomy, University of South Carolina, Columbia, SC 29208, United States; Laboratori Nazionali del Gran Sasso, I-67010, Assergi (L\’Aquila), Italy; Dipartimento di Fisica, Università di Firenze, INFN, Firenze I-50125, Italy; Lawrence Berkeley National Laboratory, Berkeley, CA 94720, United States; Laboratorio de Fisica Nuclear y Alta Energias, Universitad de Zaragoza, 50009 Zaragoza, Spain; Kamerling Onnes Laboratory, Leiden University, 2300 RAQ, Leiden, Netherlands; Dipartimento di Fisica, Università di Genova, INFN, Genova I-16146, Italy; Dipartimento di Fisica e Matematica, Università dell\’Insubria, INFN, Como I-22100, Italy; Department of Materials Science and Engineering, University of California, Berkeley, CA 94720, United States; Laboratori Nazionali di Legnaro, Via Romea 4, I-35020 Legnaro, (Padova), Italy
Abstract: We report the present results of CUORICINO, a search for neutrinoless double-beta (0ÎÎÎ) decay of Te130. The detector is an array of 62 TeO2 bolometers with a total active mass of 40.7 kg. The array is cooled by a dilution refrigerator shielded from environmental radioactivity and energetic neutrons, operated at â8mK in the Gran Sasso Underground Laboratory. No evidence for (0ÎÎÎ) decay was found and a new lower limit, T1/20Î≥1.8Ã-1024yr (90% C.L.) is set, corresponding to âmÎâ©â‰0.2 to 1.1 eV, depending on the theoretical nuclear matrix elements used in the analysis.
Journal/Review: PHYSICAL REVIEW LETTERS
Volume: 95 (14) Pages from: 142501-1 to: 142501-4
KeyWords: Energetic neutrons; Environmental radioactivity; Neutrinoless ßß decay; Nuclear matrix elements, Arrays; Bolometers; Cooling; Elementary particle sources; Neutrons; Radioactivity, High energy physicsDOI: 10.1103/PhysRevLett.95.142501ImpactFactor: 7.489Citations: 107data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2024-11-10References taken from IsiWeb of Knowledge: (subscribers only)
