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arXiv · 1209.2519

The low energy spectrum of TeO2 bolometers: results and dark matter perspectives for the CUORE-0 and CUORE experiments

F. Alessandria·R. Ardito·D. R. Artusa·F. T. Avignone III·O. Azzolini·M. Balata·T. I. Banks·G. Bari·J. Beeman·F. Bellini·A. Bersani·M. Biassoni·T. Bloxham·C. Brofferio·C. Bucci·X. Z. Cai·L. Canonica·S. Capelli·L. Carbone·L. Cardani·M. Carrettoni·N. Casali·N. Chott·M. Clemenza·C. Cosmelli·O. Cremonesi·R. J. Creswick·I. Dafinei·A. Dally·V. Datskov·A. De Biasi·M. P. Decowski·M. M. Deninno·S. Di Domizio·M. L. di Vacri·L. Ejzak·R. Faccini·D. Q. Fang·H. A. Farach·E. Ferri·F. Ferroni·E. Fiorini·M. A. Franceschi·S. J. Freedman·G. Frossati·B. K. Fujikawa·A. Giachero·L. Gironi·A. Giuliani·J. J. Goett·P. Gorla·C. Gotti·E. Guardincerri·T. D. Gutierrez·E. E. Haller·K. Han·K. M. Heeger·H. Z. Huang·R. Kadel·K. Kazkaz·G. Keppel·L. Kogler·Yu. G. Kolomensky·D. Lenz·Y. L. Li·C. Ligi·X. Liu·Y. G. Ma·C. Maiano·M. Maino·M. Martinez·R. H. Maruyama·N. Moggi·S. Morganti·T. Napolitano·S. Newman·S. Nisi·C. Nones·E. B. Norman·A. Nucciotti·F. Orio·D. Orlandi·J. L. Ouellet·M. Pallavicini·V. Palmieri·L. Pattavina·M. Pavan·M. Pedretti·G. Pessina·S. Pirro·E. Previtali·V. Rampazzo·F. Rimondi·C. Rosenfeld·C. Rusconi·S. Sangiorgio·N. D. Scielzo·M. Sisti·A. R. Smith·F. Stivanello
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Abstract

We collected 19.4 days of data from four 750 g TeO2 bolometers, and in three of them we were able to set the energy threshold around 3 keV using a new analysis technique. We found a background rate ranging from 25 cpd/keV/kg at 3 keV to 2 cpd/keV/kg at 25 keV, and a peak at 4.7 keV. The origin of this peak is presently unknown, but its presence is confirmed by a reanalysis of 62.7 kg.days of data from the finished CUORICINO experiment. Finally, we report the expected sensitivities of the CUORE0 (52 bolometers) and CUORE (988 bolometers) experiments to a WIMP annual modulation signal.

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F. Alessandria, R. Ardito, D. R. Artusa, F. T. Avignone III, O. Azzolini, M. Balata, T. I. Banks, G. Bari, J. Beeman, F. Bellini, A. Bersani, M. Biassoni, T. Bloxham, C. Brofferio, C. Bucci, X. Z. Cai, L. Canonica, S. Capelli, L. Carbone, L. Cardani, M. Carrettoni, N. Casali, N. Chott, M. Clemenza, C. Cosmelli, O. Cremonesi, R. J. Creswick, I. Dafinei, A. Dally, V. Datskov, A. De Biasi, M. P. Decowski, M. M. Deninno, S. Di Domizio, M. L. di Vacri, L. Ejzak, R. Faccini, D. Q. Fang, H. A. Farach, E. Ferri, F. Ferroni, E. Fiorini, M. A. Franceschi, S. J. Freedman, G. Frossati, B. K. Fujikawa, A. Giachero, L. Gironi, A. Giuliani, J. J. Goett, P. Gorla, C. Gotti, E. Guardincerri, T. D. Gutierrez, E. E. Haller, K. Han, K. M. Heeger, H. Z. Huang, R. Kadel, K. Kazkaz, G. Keppel, L. Kogler, Yu. G. Kolomensky, D. Lenz, Y. L. Li, C. Ligi, X. Liu, Y. G. Ma, C. Maiano, M. Maino, M. Martinez, R. H. Maruyama, N. Moggi, S. Morganti, T. Napolitano, S. Newman, S. Nisi, C. Nones, E. B. Norman, A. Nucciotti, F. Orio, D. Orlandi, J. L. Ouellet, M. Pallavicini, V. Palmieri, L. Pattavina, M. Pavan, M. Pedretti, G. Pessina, S. Pirro, E. Previtali, V. Rampazzo, F. Rimondi, C. Rosenfeld, C. Rusconi, S. Sangiorgio, N. D. Scielzo, M. Sisti, A. R. Smith, F. Stivanello. 2013-02-01. The low energy spectrum of TeO2 bolometers: results and dark matter perspectives for the CUORE-0 and CUORE experiments. https://doi.org/10.1088/1475-7516%2F2013%2F01%2F038

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