Molecular-orbital approach to ion-atom collisions with multiply charged projectiles
In a slow collision between a multiply charged projectile ion and a neutral target atom, self-consistent molecular orbitals in the entrance channel can be defined by introducing a variational constraint which enforces the initial charge sharing and reflects the charge-equilibration process during the collision. In the present work, the interaction of an auxiliary electric field with the electronic dipole moment along the internuclear line is added to an effective single-electron Hamiltonian in order to simulate a constrained Hartree-Fock procedure. In this way, correlation diagrams for the systems N/sup 2 +/+O and Ne/sup 4 +/+Ne are computed. The diagrams exhibit crossings between energy curves of like symmetry. The correlations are found to be the same as in the corresponding charge-balanced (or neutral) systems and are hence consistent with existing experimental data.
- Research Organization:
- Bereich Kern- und Strahlenphysik, Hahn-Meitner-Institut fuer Kernforschung Berlin GmbH, and Fachbereich Physik, Freie Universitaet Berlin, D-1000 Berlin 39, Federal Republic of Germany
- OSTI ID:
- 5885161
- Journal Information:
- Phys. Rev., A; (United States), Vol. 20:4
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
NEON
ION-ATOM COLLISIONS
NEON IONS
NITROGEN IONS
OXYGEN
ATOMIC IONS
CORRELATIONS
MOLECULAR ORBITAL METHOD
MULTICHARGED IONS
ATOM COLLISIONS
CHARGED PARTICLES
COLLISIONS
CRYOGENIC FLUIDS
ELEMENTS
FLUIDS
ION COLLISIONS
IONS
NONMETALS
RARE GASES
640304* - Atomic
Molecular & Chemical Physics- Collision Phenomena