The cryogenic calorimeters developed within the Excellence Cluster ORIGINS are moving the low-energy frontier in astroparticle physics.
The detector technology based on single crystals equipped with tungsten transition-edge-sensors (W-TES), operated at temperatures of about 10mK, allows to reach unprecedented low-energy threshold. Thanks to this technology, the CRESST experiment has achieved the world-best energy thresholds for nuclear recoils in the 10eV regime and is currently the leading experiment for sub-GeV Dark Matter (DM) searches.
The same technology can be applied also for the detection of coherent-elastic neutrino nucleus scattering (CEvNS). This is the goal of the NUCLEUS experiment, which aims at the detection of neutrinos from a nuclear power reactor (Chooz, France) via CEvNS. NUCLEUS, seed funded by the Excellence Cluster UNIVERSE in 2017, is now fully funded and will be commissioned from 2022 on.
In this talk I will present the latest results and the research program of leading experiments in the neutrino and DM sectors that are supported by the Excellence Cluster ORIGINS (CRESST and NUCLEUS) and I will give an overview of the current R&Ds that uses W-TES cryogenic calorimeters for sub-GeV DM searches, supernova neutrino detection and axion searches.