Low Energy Analysis Techniques for CUORE
Abstract
CUORE is a tonne-scale cryogenic detector operating at the Laboratori Nazionali del Gran Sasso (LNGS) that uses tellurium dioxide bolometers to search for neutrinoless double-beta decay of Te. CUORE is also suitable to search for low energy rare events such as solar axions or WIMP scattering, thanks to its ultra-low background and large target mass. However, to conduct such sensitive searches requires improving the energy threshold to 10 keV. In this paper, we describe the analysis techniques developed for the low energy analysis of CUORE-like detectors, using the data acquired from November 2013 to March 2015 by CUORE-0, a single-tower prototype designed to validate the assembly procedure and new cleaning techniques of CUORE. We explain the energy threshold optimization, continuous monitoring of the trigger efficiency, data and event selection, and energy calibration at low energies in detail. We also present the low energy background spectrum of CUORE-0 below 60keV. Finally, we report the sensitivity of CUORE to WIMP annual modulation using the CUORE-0 energy threshold and background, as well as an estimate of the uncertainty on the nuclear quenching factor from nuclear recoils in CUORE-0.
Cite
@article{arxiv.1708.07809,
title = {Low Energy Analysis Techniques for CUORE},
author = {CUORE Collaboration and C. Alduino and K. Alfonso and D. R. Artusa and F. T. Avignone and O. Azzolini and G. Bari and J. W. Beeman and F. Bellini and G. Benato and A. Bersani and M. Biassoni and A. Branca and C. Brofferio and C. Bucci and A. Camacho and A. Caminata and L. Canonica and X. G. Cao and S. Capelli and L. Cappelli and L. Cardani and P. Carniti and N. Casali and L. Cassina and D. Chiesa and N. Chott and M. Clemenza and S. Copello and C. Cosmelli and O. Cremonesi and R. J. Creswick and J. S. Cushman and A. D'Addabbo and D. D'Aguanno and I. Dafinei and C. J. Davis and S. Dell'Oro and M. M. Deninno and S. Di Domizio and M. L. Di Vacri and A. Drobizhev and D. Q. Fang and M. Faverzani 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 L. Gladstone and P. Gorla and C. Gotti and T. D. Gutierrez and E. E. Haller and K. Han and E. Hansen and K. M. Heeger and R. Hennings-Yeomans and H. Z. Huang and R. Kadel and G. Keppel and Yu. G. Kolomensky and A. Leder and C. Ligi and K. E. Lim and Y. G. Ma and M. Maino and L. Marini and M. Martinez and R. H. Maruyama and Y. Mei and N. Moggi and S. Morganti and P. J. Mosteiro and T. Napolitano and M. Nastasi and C. Nones and E. B. Norman and V. Novati and A. Nucciotti and T. O'Donnell and J. L. Ouellet and C. E. Pagliarone and M. Pallavicini and V. Palmieri and L. Pattavina and M. Pavan and G. Pessina and G. Piperno and C. Pira and S. Pirro and S. Pozzi and E. Previtali and C. Rosenfeld and C. Rusconi and M. Sakai and S. Sangiorgio and D. Santone and B. Schmidt and J. Schmidt and N. D. Scielzo and V. Singh and M. Sisti and A. R. Smith and L. Taffarello and F. Terranova and C. Tomei and M. Vignati and S. L. Wagaarachchi and B. S. Wang and H. W. Wang and B. Welliver and J. Wilson and L. A. Winslow and T. Wise and A. Woodcraft and L. Zanotti and G. Q. Zhang and S. Zimmermann and S. Zucchelli},
journal= {arXiv preprint arXiv:1708.07809},
year = {2017}
}
Comments
11 pages, 6 figures