Abstract
We present a detailed study of the two collisional systems: He2+ (11 keV/u) and O7+ (4 keV/u) on CO molecule. We measured in coincidence the full momentum vector of the two fragments of the dissociated molecule and the projectile charge state. It is thus straightforward to access the dependence of the capture process on the angle between the beam and the internuclear axis of the molecule. The KER (Kinetic Energy Release) distribution for each fragmentation channel is obtained for each outgoing projectile charge state associated to single capture, stabilized and autoionizing double capture, ... . It has to be noted that, contrarily to ion-atom collisions, Auger decay of the target plays an important role: double capture by He2+ on CO may lead to four-fold ionization of the target.
Export citation and abstract BibTeX RIS