Sensitivity Challenge of the Next-Generation Bolometric Double-Beta Decay Experiment

This article introduces the importance of Bolometric technology in neutrinoless double-beta decay experiments and the progress made by the CUORE experiment in terms of sensitivity improvement, while highlighting the need to further reduce the background levels. It focuses on the CUPID project, which aims to decrease background events and enhance experimental sensitivity through the use of scintillating crystals and dual readout technology and discussed strategies in detail such as improving time resolution, optimizing detector design, and reducing cosmic ray backgrounds. It demonstrates the advantage of CUPID technology in background suppression through the research work at the Jinping Underground Laboratory, China and validates the technology's competitiveness for future ton-scale experiments, providing a direction for next-generation Bolometric double-Beta decay experimentation. https://doi.org/10.34133/research.0569