Molecular-state treatment of collisions between protons and He/sup +/ ions
Cross sections have been calculated for electron transfer into all states of H in collisions of protons and /sup 4/He/sup +/ ions at center-of-mass energies from 1.6 to 14 keV. Excitation of the 2s, 2p/sub 0/, and 2p/sub 1/ states of He/sup +/ has also been considered. The coupled-molecular-state calculations incorporate matrix elements and potential curves determined previously for up to ten molecular states 1ssigma, 2ssigma, ..., 3ddelta and up to 22 states 1ssigma, 2ssigma, ..., 4fphi 5gsigma, 5g..pi.. in treatments with and without plane-wave translational factors, respectively. The departure from rectilinear trajectories has been estimated to affect the electron-transfer cross sections by less than 7% at energies above 1.6 keV. The present results show very good agreement with the magnitude and structure of a recent experimental cross-section curve.
- Research Organization:
- Physics Department, Pennsylvania State University, Wilkes-Barre Campus, Wilkes-Barre, Pennsylvania 18708
- OSTI ID:
- 5056598
- Journal Information:
- Phys. Rev., A; (United States), Vol. 22:3
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
HELIUM IONS
ION-ION COLLISIONS
HYDROGEN IONS 1 PLUS
CROSS SECTIONS
ELECTRON TRANSFER
ENERGY LEVELS
EXCITATION
KEV RANGE 01-10
KEV RANGE 10-100
MOLECULAR MODELS
CATIONS
CHARGED PARTICLES
COLLISIONS
ENERGY RANGE
ENERGY-LEVEL TRANSITIONS
HYDROGEN IONS
ION COLLISIONS
IONS
KEV RANGE
MATHEMATICAL MODELS
640304* - Atomic
Molecular & Chemical Physics- Collision Phenomena