Theoretical investigation of charge transfer in collisions of C/sup 6 +/ and N/sup 7 +/ ions with H and H/sub 2/ targets at low to intermediate energy
Recent measurements by Meyer et al. (Phys. Rev. A 32, 3310 (1985)) have revealed that the charge-transfer cross section for N/sup 7 +/+H collisions is much larger than that for N/sup 7 +/+H/sub 2/ collisions below 3 keV/amu, whereas the opposite trend is seen in the measured charge-transfer cross sections for C/sup 6 +/ on H and H/sub 2/ targets. These anomalous experimental findings have been investigated for the first time theoretically, using the traveling-molecular-orbital expansion approach, in the energy range from 0.14 to 9 keV/amu. Our qualitative argument based on adiabatic potentials and corresponding couplings as well as a five-state close-coupling calculation provides support for experimental findings.
- Research Organization:
- Joint Institute for Laboratory Astrophysics, University of Colorado and National Bureau of Standards, P.O. Box 440, Boulder, Colorado 80309-0440
- OSTI ID:
- 5795994
- Journal Information:
- Phys. Rev. A; (United States), Vol. 33:6
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
CARBON IONS
ION-ATOM COLLISIONS
ION-MOLECULE COLLISIONS
HYDROGEN
NITROGEN IONS
CHARGE EXCHANGE
CROSS SECTIONS
ENERGY DEPENDENCE
KEV RANGE 10-100
MOLECULAR ORBITAL METHOD
MULTICHARGED IONS
POTENTIALS
ATOM COLLISIONS
CHARGED PARTICLES
COLLISIONS
ELEMENTS
ENERGY RANGE
ION COLLISIONS
IONS
KEV RANGE
MOLECULE COLLISIONS
NONMETALS
640304* - Atomic
Molecular & Chemical Physics- Collision Phenomena