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Neutrinoless Double Beta Decay with CUORE-0: Physics Results and Detector Performance

Abstract

The CUORE-0 experiment searches for neutrinoless double beta decay in \(^{130}\)Te. It consists of an array of 52 tellurium dioxide crystals, operated as bolometers at a temperature of 10 mK, with a total mass of about 39 kg of TeO\(_2\). CUORE-0 has been built to test the performance of the upcoming CUORE experiment and represents the largest \(^{130}\)Te bolometric setup currently in operation. This experiment has been running in the Gran Sasso National Laboratory, Italy, since March 2013. We report the results of a search for neutrinoless double beta decay in 9.8 kg years \(^{130}\)Te exposure, which allowed us to set the most stringent limit to date on this half-life. The performance of the detector in terms of background rate and energy resolution are also reported.

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Acknowledgments

The CUORE Collaboration thanks the directors and staff of the Laboratori Nazionali del Gran Sasso and our technical staff for their valuable contribution to building and operating the detector. This work was supported by the Istituto Nazionale di Fisica Nucleare (INFN); the National Science Foundation under Grant Nos. NSF-PHY-0605119, NSF-PHY-0500337, NSF-PHY-0855314, NSF-PHY-0902171, NSF-PHY-0969852, NSF-PHY-1307204, and NSF-PHY-1404205; the Alfred P. Sloan Foundation; the University of Wisconsin Foundation; and Yale University. This material is also based upon work supported by the US Department of Energy (DOE) Office of Science under Contract Nos. DE-AC02-05CH11231 and DE-AC52-07NA27344 and by the DOE Office of Science, Office of Nuclear Physics under Contract Nos. DE-FG02-08ER41551 and DEFG03-00ER41138. This research used resources of the National Energy Research Scientific Computing Center (NERSC).

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Correspondence to L. Canonica.

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For the CUORE Collaboration.

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Canonica, L. Neutrinoless Double Beta Decay with CUORE-0: Physics Results and Detector Performance. J Low Temp Phys 184, 873–878 (2016). https://doi.org/10.1007/s10909-015-1444-1

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Keywords

  • Bolometers
  • Low radioactivity
  • Neutrinoless double beta decay
  • Underground detectors