Abstract

The rapid development in the field of recoil-ion momentum spectroscopy now allows one to perform complete momentum experiments of all the reaction products for single target ionization. This experimental technique can address distinct features characterizing ionization processes in ion-atom collisions and can serve as a most stringent test for theory. The quantum mechanical models used most commonly in the description of ion-atom ionization will be discussed. In particular we will survey some new theoretical results which will illustrate the suitability of the continuum-distorted-wave (CDW) and continuum-distorted-wave eikonal-initial-state (CDW-EIS) models for both high and low Z projectiles in fast ion-atom collisions. The influence of the post collision interaction (PCI) effects in these collisions will also examined.

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