The CUPID-0 experiment searches for neutrinoless double beta decay (0νββ) using the first array of enriched Zn82Se scintillating bolometers with double (heat and light) read-out. To further enhance the CUPID-0 detector performances, the heat-light correlation has been exploited to improve the energy resolution. Different decorrelation algorithms have been studied and the best result is the average reduction of the full width at half maximum (FWHM) energy resolution to (90.5±0.6)% of its original value , corresponding to a change from FWHM=(20.7±0.5)keV to FWHM=(18.7±0.5)keV at the 2615 keV γ line.
@article{arxiv.1901.10434,
title = {Resolution enhancement with light/heat decorrelation in CUPID-0 bolometric detector},
author = {M. Beretta and L. Cardani and N. Casali and L. Gironi and L. Pagnanini and F. Bellini and C. Brofferio and D. Chiesa and S. Capelli and S. Di Domizio and L. Pattavina and M. Pavan and S. Pirro and S. Pozzi and E. Previtali and C. Rusconi and C. Tomei and M. Vignati},
journal= {arXiv preprint arXiv:1901.10434},
year = {2019}
}