The aim of the NEMO 3 (Neutrino Ettore Majorana Observatory) experiment
is to search for neutrinoless double beta decay – a rare, lepton-number violating,
nuclear decay process that would indicate the Majorana nature of neutrinos,
as well as provide an estimate for the neutrino mass scale.
The experiment is situated in the Fréjus underground laboratory near Modane, France.
NEMO 3 is currently taking data from a variety of isotopes.
We at Manchester are involved in NEMO 3 data analysis of Nd-150.

SuperNEMO is the next generation experiment to search for neutrinoless double beta decay.
It will house 100 kg of isotopes, ten times more than NEMO 3, thus reaching a neutrino mass sensitivity of about 50 meV.
The SuperNEMO detector will comprise several identical modules, each containing a source foil surrounded by a tracker with drift cells and a calorimeter.
SuperNEMO is in the R&D phase and Manchester is currently working on detector development of the tracker and simulation.