  The international Muon Ionization Cooling Experiment (MICE) will perform a
systematic investigation of ionization cooling of a muon beam. The
demonstration is based on a simplified version of a neutrino factory cooling
channel. As the emittance measurement will be done on a particle-by-particle
basis, sophisticated beam instrumentation has been developed to measure
particle coordinates and timing vs RF. The muon beamline has been characterized
and a preliminary measure of the beam emittance, using a particle-by-particle
method with only the TOF detector system, has been performed (MICE STEP I).
Data taking for the study of the properties that determine the cooling
performance (MICE Step IV) has just started in 2015, while the demonstration of
ionization cooling with re-acceleration is foreseen for 2017.
