Potentialities of the future technical improvements in the search of rare nuclear decays by bolometers

TL;DR

This paper reviews the current state and future potential of bolometers in detecting rare nuclear decays, especially neutrinoless double beta decay, highlighting technological challenges and opportunities for sensitivity improvements.

Contribution

It provides a comprehensive overview of bolometer technology, emphasizing future technical improvements needed for enhanced sensitivity in rare nuclear decay searches.

Findings

Bolometers offer excellent energy resolution and particle identification.

They are a leading technology in multiple physics fields.

Further developments are necessary for next-generation sensitivity.

Abstract

Bolometers are cryogenic calorimeters which feature excellent energy resolution, low energy threshold, high detection efficiency, flexibility in choice of materials, particle identification capability if operated as hybrid devices. After thirty years of rapid progresses, they represent nowadays a leading technology in several fields: particle and nuclear physics, X-ray astrophysics, cosmology. However, further and substantial developments are required to increase the sensitivity to the levels envisioned by future researches. A review of the challenges to be addressed and potentialities of bolometers in the search for rare nuclear decays is given, with particular emphasis to the neutrinoless double beta decay physics case.