Workshop on phase space cooling

A discussion is given of phase space damping (''cooling'') of particle beams. Interest in this topic derives chiefly from the possibility that antiproton beams produced by collision of an intense proton beam with a target can be compressed in phase space. This could make it possible to accumulate antiproton beams in a storage ring repeatedly, thus leading to a relatively high stacked anti p beam suitable for anti p p collisions with interesting luminosities