Reconstruction of cosmic-ray muon events with CUORE
Abstract
We report the in-situ 3D reconstruction of through-going muons in the CUORE experiment, a cryogenic calorimeter array searching for neutrinoless double beta () decay, leveraging the segmentation of the detector. Due to the slow time response of the detector, time-of-flight estimation is not feasible. Therefore, the track reconstruction is performed using a multi-objective optimization algorithm that relies on geometrical information from the detector as a whole. We measure the integral flux of cosmic-ray muons underground at the {\it Laboratori Nazionali del Gran Sasso}, and find our value to be in good agreement with other experiments that have performed a similar measurement. To our knowledge, this work represents the first demonstration of 3D particle tracking and reconstruction of through-going muons with per-event angular determination in a millikelvin cryogenic detector array. The analysis performed for this work will be critical for validating the muon-related background in CUPID, a next-generation experiment, and for follow-up studies on detector response and on delayed products induced by cosmic-ray muons.
Keywords
Cite
@article{arxiv.2509.05528,
title = {Reconstruction of cosmic-ray muon events with CUORE},
author = {CUORE Collaboration and D. Q. Adams and C. Alduino and K. Alfonso and A. Armatol and F. T. Avignone and O. Azzolini and G. Bari and F. Bellini and G. Benato and M. Beretta and M. Biassoni and A. Branca and D. Brandani and C. Brofferio and C. Bucci and J. Camilleri and A. Caminata and A. Campani and J. Cao and S. Capelli and L. Cappelli and L. Cardani and P. Carniti and N. Casali and D. Chiesa and Y. Chu and M. Clemenza and S. Copello and O. Cremonesi and R. J. Creswick and A. D'Addabbo and I. Dafinei and S. Dell'Oro and S. Di Domizio and S. Di Lorenzo and T. Dixon 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 S. H. Fu and B. K. Fujikawa and S. Ghislandi and A. Giachero and M. Girola and L. Gironi and A. Giuliani and P. Gorla and C. Gotti and P. V. Guillaumon and T. D. Gutierrez and K. Han and E. V. Hansen and K. M. Heeger and D. L. Helis and H. Z. Huang and M. T. Hurst and G. Keppel and Yu. G. Kolomensky and R. Kowalski and R. Liu and L. Ma and Y. G. Ma and L. Marini and R. H. Maruyama and D. Mayer and M. N. Moore and T. Napolitano and M. Nastasi and C. Nones and E. B. Norman and A. Nucciotti and I. Nutini and T. O'Donnell and M. Olmi and S. Pagan and C. E. Pagliarone and L. Pagnanini and M. Pallavicini and L. Pattavina and M. Pavan and G. Pessina and V. Pettinacci and C. Pira and S. Pirro and E. G. Pottebaum and S. Pozzi and E. Previtali and A. Puiu and S. Puranam and S. Quitadamo and A. Ressa and C. Rosenfeld and B. Schmidt and R. Serino and A. Shaikina and V. Sharma and V. Singh and M. Sisti and D. Speller and P. T. Surukuchi and L. Taffarello and C. Tomei and A. Torres and J. A. Torres and K. J. Vetter and M. Vignati and S. L. Wagaarachchi and R. Wang and B. Welliver and J. Wilson and K. Wilson and L. A. Winslow and F. Xie and T. Zhu and S. Zimmermann and S. Zucchelli},
journal= {arXiv preprint arXiv:2509.05528},
year = {2025}
}