CALDER (Cryogenic wide-Area Light Detectors with Excellent Resolution) wants to contribute in settling two important issues that particle physics is now facing:

  1. Is the neutrino a standard particle or is it equal to its own antiparticle, as predicted by Ettore Majorana? The answer is of fundamental importance in the global framework of particle interactions and in cosmology, and could come from the observation of a rare nuclear process called "neutrinoless double beta decay".
  2. What is the the dark matter filling the Universe made of? We know that it is different from the ordinary matter, however we still do not know what it actually is.

The goal of CALDER is to develop high-sensitivity cryogenic light detectors for the identification of rare events, such as double beta decay and dark matter interactions with ordinary matter. We are developing a new technology based on superconducting detectors called KIDs (Kinetic Inductance Detectors). We are currently designing and testing the prototypes in the Sapienza/INFN laboratory in Rome, in collaboration with the Italian Institute for Photonics and Nanotechnologies. Then the detectors will be installed in the CUORE and CUPID experiments running at the Gran Sasso underground laboratories of INFN to enhance their performances. CALDER is supported by an ERC Starting Grant (contract No. 335359) started in March 2014.

CALDER is supported by the following Partners: