Latest results from NEMO-3 and status of SuperNEMO

International audienceThe NEMO-3 experiment performed precise measurement of the double beta decay and searched for the neutrino-less double beta decay on seven isotopes, among which 100 Mo and 82 Se were the dominant ones. The detector, installed in the Laboratoire Souterrain de Modane, took data for 8 years before being decommissioned in 2011. The key feature of NEMO-3 was its unique capabil- ity to fully reconstruct the kinematics of the events, which allowed to reduce the backgrounds and to discriminate among different mechanisms beyond the neutrino-less double beta decay. No evi- dence of 0ν β β has been found with an exposure of 34.3 kg×y of 100 Mo, providing a limit for the light Majorana neutrino mass mechanism of T 0ν β β > 1.1 × 1024 y (90 % C.L.) which corresponds to an effective neutrino mass of |mβ β | 1026 y (|mβ β | 6.6 × 1024 y (|mβ β | < 0.2 − 0.4 eV) after 2.5 y, the demonstrator module will also be able to perform a competitive measurement