CUORE-0 is a cryogenic detector that uses an array of tellurium dioxide bolometers to search for neutrinoless double-beta decay of . We present the first data analysis with of total exposure focusing on background measurements and energy resolution. The background rates in the neutrinoless double-beta decay region of interest (2.47 to ) and in the background-dominated region (2.70 to ) have been measured to be and , respectively. The latter result represents a factor of 6 improvement from a predecessor experiment, Cuoricino. The results verify our understanding of the background sources in CUORE-0, which is the basis of extrapolations to the full CUORE detector. The obtained energy resolution (full width at half maximum) in the region of interest is . Based on the measured background rate and energy resolution in the region of interest, CUORE-0 half-life sensitivity is expected to surpass the observed lower bound of Cuoricino with one year of live time.

D. R. Artusa, F. T. Avignone, O. Azzolini, M. Balata, T. I. Banks, G. Bari, et al. (2014). Initial performance of the CUORE-0 experiment. THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS, 74(8), 2956-1-2956-7 [10.1140/epjc/s10052-014-2956-6].

Initial performance of the CUORE-0 experiment

DENINNO, MARIA MADDALENA;MOGGI, NICCOLO';ZUCCHELLI, STEFANO
2014

Abstract

CUORE-0 is a cryogenic detector that uses an array of tellurium dioxide bolometers to search for neutrinoless double-beta decay of . We present the first data analysis with of total exposure focusing on background measurements and energy resolution. The background rates in the neutrinoless double-beta decay region of interest (2.47 to ) and in the background-dominated region (2.70 to ) have been measured to be and , respectively. The latter result represents a factor of 6 improvement from a predecessor experiment, Cuoricino. The results verify our understanding of the background sources in CUORE-0, which is the basis of extrapolations to the full CUORE detector. The obtained energy resolution (full width at half maximum) in the region of interest is . Based on the measured background rate and energy resolution in the region of interest, CUORE-0 half-life sensitivity is expected to surpass the observed lower bound of Cuoricino with one year of live time.
2014
D. R. Artusa, F. T. Avignone, O. Azzolini, M. Balata, T. I. Banks, G. Bari, et al. (2014). Initial performance of the CUORE-0 experiment. THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS, 74(8), 2956-1-2956-7 [10.1140/epjc/s10052-014-2956-6].
D. R. Artusa;F. T. Avignone;O. Azzolini;M. Balata;T. I. Banks;G. Bari;J. Beeman;F. Bellini;A. Bersani;M. Biassoni;C. Brofferio;C. Bucci;X. Z. Cai;L. C...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/376843
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