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

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

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

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 CUORE-0 (52 bolometers) and CUORE (988 bolometers) experiments to a WIMP annual modulation signal. © 2013 IOP Publishing Ltd and Sissa Medialab srl.

Alessandria, F., Ardito, R., Artusa, D., Avignone, F., Azzolini, O., Balata, M., et al. (2013). The low energy spectrum of TeO2 bolometers: results and dark matter perspectives for the CUORE-0 and CUORE experiments. JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS, 2013(1) [10.1088/1475-7516/2013/01/038].