COSINUS: a model-independent challenge to the DAMA/LIBRA dark matter claim using cryogenic NaI detectors

Dark matter remains one of the central open questions in particle physics. Astrophysical and cosmological observations imply its existence, yet its underlying nature is unknown. Low-temperature detectors are a powerful technology for detecting dark matter particles, offering excellent energy resolution and low energy thresholds. COSINUS is the only experiment that combines scintillating sodium iodide (NaI) crystals with an additional phonon readout at cryogenic temperatures, using superconductin