Reducing Environmental Noise in Neutrinoless Double-Beta Decay Experiments and Axion Searches

The CUPID (CUORE Upgrade with Particle IDentification) experiment, designed to search for neutrinoless double-beta decay, will leverage advanced cryogenic calorimeters in combination with light detectors to detect rare events with high sensitivity while discriminating between alpha and beta/gamma particle events. Auxiliary devices, including microphones, accelerometers, seismometers, and geophones, will play a crucial role in enhancing the experiment's capabilities. By providing real-time environmental monitoring and noise reduction, these auxiliary devices will improve the overall sensitivity of the CUPID experiment. Here, we discuss the auxiliary devices already deployed in CUORE and how they are used to monitor and remove environmental noise, improving the data quality. We will also explore how this knowledge will be utilized in preparation for the CUPID experiment. Finally, we discuss how other auxiliary devices, such as antennas, have applications beyond CUPID to cryogenic experiments more generally, including those looking for axions.