Speaker
Description
The search for neutrinoless double-beta decay (0νββ) is a key approach to probe the Majorana nature of neutrinos and lepton-number violation beyond the Standard Model. Cryogenic scintillating bolometers, offering excellent energy resolution and powerful particle identification, are a leading technology for next-generation 0νββ experiments.
We report the status of cryogenic bolometer R&D for 0νββ searches at the China Jinping Underground Laboratory (CJPL). The program focuses on the development and characterization of scintillating bolometer modules based on lithium molybdate crystals operated in a dual heat–light readout configuration. Recent activities include the construction and commissioning of prototype detector setups, optimization of detector assembly and operation procedures, and laboratory performance studies using ground-based measurements. Calibration strategies employing heater pulsing and radioactive sources have been developed to establish energy response and detector stability. In parallel, simulation studies are being performed to evaluate detector response and background conditions relevant to future large-scale implementations.
These R&D efforts are carried out within the broader international effort toward next-generation cryogenic bolometer experiments for 0νββ searches, and provide important input for the optimization and development of future detectors.