Electron, Positron and Photon Collisions with Atoms and Molecules
(e,2e) and coincidence studies
While coincidence studies with light projectiles, ie, electrons, positrons, photons, and positronium, still remain of interest
(eg, Starrett et al, Phys Rev A 77, 042505 (2008), Walters and Whelan, Phys Rev 85, 062701 (2012)), attention
has more recently been focused on heavy particle impact. Coincidence work is therefore described more fully under Heavy Particle Collisions.