Description
CUPID (CUORE Upgrade with Particle IDentification) is a next-generation double beta decay search experiment using cryogenic scintillating calorimeters enriched in $^{100}$Mo and light detectors to measure heat and light, respectively, released by an interaction. The dual measurement technique allows for particle identification and thus for background rejection. However, due to its relatively short half-life, the pileup from the two-neutrino double beta decay process remains one of the major background contributions to the search for neutrinoless double beta decay. We have developed a simulation framework to study the detector response and produce controlled samples of data assuming different configurations for the CUPID detector. We also perform analysis on simulated data aiming at pileup rejection, exploiting both standard selections and machine learning techniques. In this contribution I will show the latest results on the CUPID pileup rejection and the constraints needed on the detector design.
| Collaboration | CUPID |
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