Initial performance of the CUORE-0 experiment

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2014
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Abstract
CUORE-0 is a cryogenic detector that uses an array of tellurium dioxide bolometers to search for neutrinoless double-beta decay of \(\mathrm {^{130}Te}\). We present the first data analysis with \(7.1 \,\mathrm {kg\cdot y}\) of total \(\mathrm {TeO_2}\) exposure focusing on background measurements and energy resolution. The background rates in the neutrinoless double-beta decay region of interest (2.47 to \(2.57 \,\mathrm {MeV}\)) and in the \(\alpha \) background-dominated region (2.70 to \(3.90\,\mathrm {MeV}\)) have been measured to be \({0.071\pm 0.011}\) and \({0.019\pm 0.002}\,\mathrm {counts/(keV\cdot kg\cdot y)}\), 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 \(5.7\,\mathrm {keV}\). 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.
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Authors D. R. Artusa,F. T. AvignoneIII,Oscar Azzolini,M. Balata,T. I. Banks,G. Bari,J. Beeman,F. Bellini,Andrea Bersani,Matteo Biassoni,C. Brofferio,C. Bucci,X. Z. Cai,Lucia Canonica,X. G. Cao,Silvia Capelli,L. Carbone,L. Cardani,M. Carrettoni,N. Casali,D. Chiesa,N. Chott,Massimiliano Clemenza,C. Cosmelli,O. Cremonesi,R. J. Creswick,I. Dafinei,A. Dally,V. Datskov,M. M. DeNinno,Sergio Di Domizio,M. L. Di Vacri,L. Ejzak,D. Q. Fang,H. A. Farach,Marco Faverzani,G. Fernandes,E. Ferri,F. Ferroni,E. Fiorini,S. J. Freedman,B. K. Fujikawa,Andrea Giachero,Luca Gironi,A. Giuliani,J. Goett,P. Gorla,C. Gotti,Thomas Gutierrez,E. E. Haller,Ke Han,K. M. Heeger,R. Hennings-Yeomans,H. Z. Huang,R. Kadel,K. Kazkaz,G. Keppel,Yu. G. Kolomensky,Y. L. Li,K. E. Lim,X. Liu,Y. G. Ma,C. Maiano,M. Maino,M. Martinez,R. Maruyama,Y. Mei,N. Moggi,S. Morganti,S. Nisi,C. Nones,E. B. Norman,A. Nucciotti,T. O’Donnell,F. Orio,D. Orlandi,J. L. Ouellet,M. Pallavicini,V. Palmieri,Luca Pattavina,Maura Pavan,M. Pedretti,G. Pessina,V. Pettinacci,G. Piperno,S. Pirro,E. Previtali,C. Rosenfeld,C. Rusconi,E. Sala,S. Sangiorgio,N. D. Scielzo,M. Sisti,A. R. Smith,L. Taffarello,M. Tenconi,F. Terranova,W. D. Tian,C. Tomei,S. Trentalange,G. Ventura,Marco Vignati,B. S. Wang,H. W. Wang,L. Wielgus,J. Wilson,L. A. Winslow,T. Wise,L. Zanotti,C. Zarra,B. X. Zhu,S. Zucchelli;D. R. Artusa;F. T. AvignoneIII;Oscar Azzolini;M. Balata;T. I. Banks;G. Bari;J. Beeman;F. Bellini;Andrea Bersani;Matteo Biassoni;C. Brofferio;C. Bucci;X. Z. Cai;Lucia Canonica;X. G. Cao;Silvia Capelli;L. Carbone;L. Cardani;M. Carrettoni;N. Casali;D. Chiesa;N. Chott;Massimiliano Clemenza;C. Cosmelli;O. Cremonesi;R. J. Creswick;I. Dafinei;A. Dally;V. Datskov;M. M. DeNinno;Sergio Di Domizio;M. L. Di Vacri;L. Ejzak;D. Q. Fang;H. A. Farach;Marco Faverzani;G. Fernandes;E. Ferri;F. Ferroni;E. Fiorini;S. J. Freedman;B. K. Fujikawa;Andrea Giachero;Luca Gironi;A. Giuliani;J. Goett;P. Gorla;C. Gotti;Thomas Gutierrez;E. E. Haller;Ke Han;K. M. Heeger;R. Hennings-Yeomans;H. Z. Huang;R. Kadel;K. Kazkaz;G. Keppel;Yu. G. Kolomensky;Y. L. Li;K. E. Lim;X. Liu;Y. G. Ma;C. Maiano;M. Maino;M. Martinez;R. Maruyama;Y. Mei;N. Moggi;S. Morganti;S. Nisi;C. Nones;E. B. Norman;A. Nucciotti;T. O’Donnell;F. Orio;D. Orlandi;J. L. Ouellet;M. Pallavicini;V. Palmieri;Luca Pattavina;Maura Pavan;M. Pedretti;G. Pessina;V. Pettinacci;G. Piperno;S. Pirro;E. Previtali;C. Rosenfeld;C. Rusconi;E. Sala;S. Sangiorgio;N. D. Scielzo;M. Sisti;A. R. Smith;L. Taffarello;M. Tenconi;F. Terranova;W. D. Tian;C. Tomei;S. Trentalange;G. Ventura;Marco Vignati;B. S. Wang;H. W. Wang;L. Wielgus;J. Wilson;L. A. Winslow;T. Wise;L. Zanotti;C. Zarra;B. X. Zhu;S. Zucchelli;
Journal the european physical journal c
Year 2014
DOI 10.1140/epjc/s10052-014-2956-6
URL
https://sciprofiles.com/publication/view/b1f7b6ff7849007e75ae0dfeb20e92d5
Keywords
energy resolution beta decay double beta neutrinoless double cuore mathrm bolometers cdot

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