Search for New Physics with Neutrinoless Double-β Decay The Ge-76 Experimental Program

The neutrinoless double-β decay is a hypothetical nuclear transition predicted by most of the theories that explain the origin of neutrino masses or the dominance of matter over antimatter in our Universe. Its discovery would unambiguously prove that the lepton number is not conserved and neutrinos are their own antiparticles. The experimental search for the neutrinoless double-β decay is a very active and rapidly growing field, with
several experiments running and many others under preparation. The talk will cover the theoretical and experimental aspects connected to the neutrinoless double-β decay, with focus on the experimental program based on Ge-76.