Abstract
Dissociation of CO molecules by collisions with and at keV energies has been investigated by measuring the charge states and kinetic energies of the ionized fragments in coincidence with each other. As opposed to earlier investigations with fast (MeV) projectiles we find that the kinetic energies of the fragment ions are strongly influenced by the projectiles' charge and velocity; e.g., impact results in 50% less kinetic energy release in the - fragmentation than impact. For a qualitative understanding of these effects we invoke the classical overbarrier model.
- Received 8 July 1996
DOI:https://doi.org/10.1103/PhysRevLett.77.3339
©1996 American Physical Society