Supernemo: A Next Generation Project to Search for Neutrinoless Double Beta Decay

The SuperNEMO project aims to search for neutrinoless double beta decay ($0\nu \beta \beta$) up to a sensitivity of 10${}^{26}$ years for the $0\nu \beta \beta$ half-life (down to 50 meV in the effective Majorana neutrino mass), using $\sim$100 kg of source and a `tracko-calo’ detector. The current status of the 2007–2009 R&D programme is presented here, focusing on the most challenging aspects: calorimetry, production of sources, low radioactivity measurements, and tracker.