Application of simulated data for pileup rejection studies in CUPID

CUPID (CUORE Upgrade with Particle IDentification) is the proposed upgrade to the tonne-scale cryogenic bolometric experiment CUORE (Cryogenic Underground Observatory for Rare Events). CUPID is designed to search the neutrinoless double beta decay of ¹⁰⁰Mo and a major background for this experiment will be the pile-up of multiple two neutrino double beta decay events. To address this problem, we simulated the detector response with a dedicated software tool. We produced controlled data streams with different characteristics, to select constraints on CUPID design parameters. In addition, we also tried different algorithms to find possible processing maximizing the pileup rejection. In this contribution, the latest results on this subject will be presented, outlying the needed steps to be taken towards an efficient pile-up rejection.