Molecular-state treatment of collisions between protons and He/sup +/ ions

Journal Article · Mon Sep 01 04:00:00 EDT 1980 · Phys. Rev., A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.22.930· OSTI ID:5056598

Winter, T G; Hatton, G J; Lane, N F

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), Journal Name: Phys. Rev., A; (United States) Vol. 22:3; ISSN PLRAA
• Country of Publication: United States
• Language: English

Related Subjects

640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
CATIONS
CHARGED PARTICLES
COLLISIONS
CROSS SECTIONS
ELECTRON TRANSFER
ENERGY LEVELS
ENERGY RANGE
ENERGY-LEVEL TRANSITIONS
EXCITATION
HELIUM IONS
HYDROGEN IONS
HYDROGEN IONS 1 PLUS
ION COLLISIONS
ION-ION COLLISIONS
IONS
KEV RANGE
KEV RANGE 01-10
KEV RANGE 10-100
MATHEMATICAL MODELS
MOLECULAR MODELS