Results from the CUORE experiment
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universe-05-00010.pdf
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692.71 KB
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Checksum (MD5)
10d480a4e0b38c708a3921579a428ef4
Author(s)
Caminata, Alessio
Adams, Douglas
Alduino, Chris
Alfonso, Krystal
Avignone, Frank
Azzolini, Oscar
Bari, Giacomo
Bellini, Fabio
Benato, Giovanni
Bersani, Andrea
Date Issued
January 2019
Journal
Universe
Publisher
Multidisciplinary Digital Publishing Institute
Citation
Caminata, Alessio, et al., "Results from the CUORE experiment." Universe 5, 1 (Jan. 2019): doi 10.3390/universe5010010 ©2019 Author(s)
Version
Final published version
Abstract
The Cryogenic Underground Observatory for Rare Events (CUORE) is the first bolometric experiment searching for neutrinoless double beta decay that has been able to reach the 1-ton scale. The detector consists of an array of 988 TeO[subscript 2] crystals arranged in a cylindrical compact structure of 19 towers, each of them made of 52 crystals. The construction of the experiment was completed in August 2016 and the data taking started in spring 2017 after a period of commissioning and tests. In this work we present the neutrinoless double beta decay results of CUORE from examining a total TeO[subscript 2] exposure of 86.3kgyr , characterized by an effective energy resolution of 7.7 keV FWHM and a background in the region of interest of 0.014 counts/(keVkgyr) . In this physics run, CUORE placed a lower limit on the decay half-life of neutrinoless double beta decay of 130Te>1.3⋅1025 yr (90% C.L.). Moreover, an analysis of the background of the experiment is presented as well as the measurement of the 130 Te 2 νββ decay with a resulting half-life of T2ν1/2=[7.9±0.1(stat.)±0.2(syst.)]×1020 yr which is the most precise measurement of the half-life and compatible with previous results. ©2019 Keywords: neutrinoless double beta decay; CUORE; Majorana Neutrino
MIT Department
Massachusetts Institute of Technology. Laboratory for Nuclear Science
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Creative Commons Attribution 4.0 International license
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DOI of Published Version
https://doi.org/10.3390/universe5010010
