Eur. Phys. J. C (2017) 77: 13
https://doi.org/10.1140/epjc/s10052-016-4498-6

Regular Article - Experimental Physics

Measurement of the two-neutrino double-beta decay half-life of Te with the CUORE-0 experiment

¹ Department of Physics and Astronomy, University of South Carolina, Columbia, SC, 29208, USA
² Department of Physics and Astronomy, University of California, Los Angeles, CA, 90095, USA
³ INFN-Laboratori Nazionali del Gran Sasso, 67010, Assergi, L’Aquila, Italy
⁴ INFN-Laboratori Nazionali di Legnaro, 35020, Legnaro, Padova, Italy
⁵ Department of Physics, University of California, Berkeley, CA, 94720, USA
⁶ Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
⁷ INFN-Sezione di Bologna, 40127, Bologna, Italy
⁸ Materials Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
⁹ Dipartimento di Fisica, Sapienza Università di Roma, 00185, Rome, Italy
¹⁰ INFN-Sezione di Roma, 00185, Rome, Italy
¹¹ INFN-Sezione di Genova, 16146, Genova, Italy
¹² Dipartimento di Fisica, Università di Milano-Bicocca, 20126, Milan, Italy
¹³ INFN-Sezione di Milano Bicocca, 20126, Milan, Italy
¹⁴ Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201800, China
¹⁵ Dipartimento di Ingegneria Civile e Meccanica, Università degli Studi di Cassino e del Lazio Meridionale, 03043, Cassino, Italy
¹⁶ Dipartimento di Fisica, Università di Genova, 16146, Genova, Italy
¹⁷ Department of Physics, Yale University, New Haven, CT, 06520, USA
¹⁸ INFN-Gran Sasso Science Institute, 67100, L’Aquila, Italy
¹⁹ Dipartimento di Scienze Fisiche e Chimiche, Università dell’Aquila, 67100, L’Aquila, Italy
²⁰ INFN-Laboratori Nazionali di Frascati, 00044, Frascati, Rome, Italy
²¹ CSNSM, Univ. Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, 91405, Orsay, France
²² Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
²³ Physics Department, California Polytechnic State University, San Luis Obispo, CA, 93407, USA
²⁴ Department of Materials Science and Engineering, University of California, Berkeley, CA, 94720, USA
²⁵ Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai, 200240, China
²⁶ Physics Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
²⁷ Laboratorio de Fisica Nuclear y Astroparticulas, Universidad de Zaragoza, 50009, Zaragoza, Spain
²⁸ Dipartimento di Scienze per la Qualità della Vita, Alma Mater Studiorum-Università di Bologna, 47921, Bologna, Italy
²⁹ Service de Physique des Particules, CEA/Saclay, 91191, Gif-sur-Yvette, France
³⁰ Lawrence Livermore National Laboratory, Livermore, CA, 94550, USA
³¹ Department of Nuclear Engineering, University of California, Berkeley, CA, 94720, USA
³² INFN-Sezione di Padova, Padova, 35131, Italy
³³ Department of Physics, University of Wisconsin, Madison, WI, 53706, USA
³⁴ SUPA, Institute for Astronomy, University of Edinburgh, Blackford Hill, Edinburgh, EH9 3HJ, UK
³⁵ Engineering Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
³⁶ Dipartimento di Fisica e Astronomia, Alma Mater Studiorum-Università di Bologna, 40127, Bologna, Italy

^* e-mail: cuore-spokesperson@lngs.infn.it

Received: 9 September 2016
Accepted: 8 November 2016
Published online: 6 January 2017

Abstract

We report on the measurement of the two-neutrino double-beta decay half-life of Te with the CUORE-0 detector. From an exposure of 33.4 kg year of TeO, the half-life is determined to be = [8.2 ± 0.2 (stat.) ± 0.6 (syst.)] 10 year. This result is obtained after a detailed reconstruction of the sources responsible for the CUORE-0 counting rate, with a specific study of those contributing to the Te neutrinoless double-beta decay region of interest.