Sensitivity and Discovery Potential of CUORE to Neutrinoless Double-Beta Decay
Abstract
We present a study of the sensitivity and discovery potential of CUORE, a bolometric double-beta decay experiment under construction at the Laboratori Nazionali del Gran Sasso in Italy. Two approaches to the computation of experimental sensitivity for various background scenarios are presented, and an extension of the sensitivity formulation to the discovery potential case is also discussed. Assuming a background rate of 10^-2 cts/(keV kg y), we find that, after 5 years of live time, CUORE has a 1 sigma sensitivity to the neutrinoless double-beta decay half-life of T_1/2(1 sigma) = 1.6 \times 10^26 y and thus a potential to probe the effective Majorana neutrino mass down to 40-100 meV; the sensitivity at 1.64 sigma, which corresponds to 90% C.L., will be T_1/2(1.64 sigma) = 9.5 \times 10^25 y. This range is compared with the claim of observation of neutrinoless double-beta decay in 76Ge and the preferred range of the neutrino mass parameter space from oscillation results.
Keywords
Cite
@article{arxiv.1109.0494,
title = {Sensitivity and Discovery Potential of CUORE to Neutrinoless Double-Beta Decay},
author = {F. Alessandria and R. Ardito and D. R. Artusa and F. T. Avignone and O. Azzolini and M. Balata and T. I. Banks and G. Bari and J. Beeman and F. Bellini and A. Bersani and M. Biassoni and T. Bloxham and C. Brofferio and C. Bucci and X. Z. Cai and L. Canonica and X. Cao and S. Capelli and L. Carbone and L. Cardani and M. Carrettoni and N. Casali and D. Chiesa and N. Chott and M. Clemenza and C. Cosmelli and O. Cremonesi and R. J. Creswick and I. Dafinei and A. Dally and V. Datskov and A. De Biasi and M. M. Deninno and S. Di Domizio and M. L. di Vacri and L. Ejzak and R. Faccini and D. Q. Fang and H. A. Farach and M. Faverzani and G. Fernandes and E. Ferri and F. Ferroni and E. Fiorini and M. A. Franceschi and S. J. Freedman and B. K. Fujikawa and A. Giachero and L. Gironi and A. Giuliani and J. Goett and P. Gorla and C. Gotti and E. Guardincerri and T. D. Gutierrez and E. E. Haller and K. Han and K. M. Heeger and H. Z. Huang and R. Kadel and K. Kazkaz and G. Keppel and L. Kogler and Yu. G. Kolomensky and D. Lenz and Y. L. Li and C. Ligi and X. Liu and Y. G. Ma and C. Maiano and M. Maino and M. Martinez and R. H. Maruyama and Y. Mei and N. Moggi and S. Morganti and T. Napolitano and S. Newman and S. Nisi and C. Nones and E. B. Norman and A. Nucciotti and T. O'Donnell and F. Orio and D. Orlandi and J. L. Ouellet and M. Pallavicini and V. Palmieri and L. Pattavina and M. Pavan and M. Pedretti and G. Pessina and G. Piperno and S. Pirro and E. Previtali and V. Rampazzo and F. Rimondi and C. Rosenfeld and C. Rusconi and E. Sala and S. Sangiorgio and N. D. Scielzo and M. Sisti and A. R. Smith and F. Stivanello and L. Taffarello and M. Tenconi and W. D. Tian and C. Tomei and S. Trentalange and G. Ventura and M. Vignati and B. S. Wang and H. W. Wang and T. Wise and A. Woodcraft and L. Zanotti and C. Zarra and B. X. Zhu and S. Zucchelli},
journal= {arXiv preprint arXiv:1109.0494},
year = {2013}
}
Comments
14 pages, 6 figures, revision for new submission to Astroparticle Physics