DETAILED INVESTIGATIONS OF 2-CENTER COLLISION DYNAMICS

The combination of recoil ion and ionized electron momentum spectrosco py provides an unparalleled method to investigate the details of ion-a tom collision dynamics. In order to predict scattering behavior and co llaborate with experimental projects, the classical trajectory 3- and n-body Monte Carlo method has been modified to yield complete momenta information for ionized electron spectra in the collision plane define d by the incident projectile and outgoing projectile or recoil ion. To illuminate the richness of these spectra, calculations of 300 and 500 keV p and p(-) single ionization collisions with He are presented for low q/v perturbation strengths. For strong q/v collisions, the 100, 3 00 and 500 keV/u Ne10+ on He systems are illustrated. Strong asymmetry of the slow and saddle point electrons are predicted for antiproton a nd highly-charged Ne10+ projectiles. Furthermore. The electron capture to the continuum spectra for Ne10+ are observed to have not only the expected asymmetry in the longitudinal direction, but also a strong as ymmetry in the collision plane.