The low energy spectrum of TeO2bolometers: results and dark matter perspectives for the CUORE-0 and CUORE experiments

Alessandria, F.; Ardito, R.; Artusa, D. R.; Avignone, F. T.; Azzolini, O.; Balata, M.; Banks, T. I.; Bari, G.; Beeman, J.; Bellini, F.; Bersani, A.; Biassoni, M.; Bloxham, T.; Brofferio, C.; Bucci, C.; Cai, X. Z.; Canonica, L.; Capelli, S.; Carbone, L.; Cardani, L.; Carrettoni, M.; Casali, N.; Chott, N.; Clemenza, M.; Cosmelli, C.; Cremonesi, O.; Creswick, R. J.; Dafinei, I.; Dally, A.; Datskov, V.; De Biasi, A.; Decowski, M. P.; Deninno, MARIA MADDALENA; Di Domizio, S.; di Vacri, M. L.; Ejzak, L.; Faccini, R.; Fang, D. Q.; Farach, H. A.; Ferri, E.; Ferroni, F.; Fiorini, E.; Franceschi, M. A.; Freedman, S. J.; Fujikawa, B. K.; Giachero, A.; Gironi, L.; Giuliani, A.; Goett, J.; Gorla, P.; Gotti, C.; Guardincerri, E.; Gutierrez, T. D.; Haller, E. E.; Han, K.; Heeger, K. M.; Huang, H. Z.; Kadel, R.; Kazkaz, K.; Keppel, G.; Kogler, L.; Kolomensky, Y. u. G.; Lenz, D.; Y. L., Li; Ligi, C.; Liu, X.; Y. G., Ma; Maiano, C.; Maino, M.; Martinez, M.; Maruyama, R. H.; Moggi, Niccolo'; Morganti, S.; Napolitano, T.; Newman, S.; Nisi, S.; Nones, C.; Norman, E. B.; Nucciotti, A.; Orio, F.; Orlandi, D.; Ouellet, J. L.; Pallavicini, M.; Palmieri, V.; Pattavina, L.; Pavan, M.; Pedretti, M.; Pessina, G.; Pirro, S.; Previtali, E.; Rampazzo, V.; Rimondi, Franco; Rosenfeld, C.; Rusconi, C.; Sangiorgio, S.; Scielzo, N. D.; Sisti, M.; Smith, A. R.; Stivanello, F.; Taffarello, L.; Tenconi, M.; Tian, W. D.; Tomei, C.; Trentalange, S.; Ventura, G.; Vignati, M.; Wang, B. S.; Wang, H. W.; Whitten, C. A.; Wise, T.; Woodcraft, A.; Zanotti, L.; Zarra, C.; Zhu, B. X.; Zucchelli, Stefano

doi:10.1088/1475-7516/2013/01/038

We collected 19.4 days of data from four 750g 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 CUORE-0 (52 bolometers) and CUORE (988 bolometers) experiments to a WIMP annual modulation signal.

F Alessandria, R Ardito, D.R Artusa, F.T Avignone, O Azzolini, M Balata, et al. (2013). The low energy spectrum of TeO2bolometers: results and dark matter perspectives for the CUORE-0 and CUORE experiments. JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS, 2013, 038-1-038-10 [10.1088/1475-7516/2013/01/038].