Molecular-state treatment of excitation and charge-transfer processes in H/sup +/+He(1s/sup 2/) collisions

Journal Article · Mon Apr 01 04:00:00 EST 1985 · Phys. Rev. A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.31.2158· OSTI ID:5774166

Kimura, M

The molecular-state expansion method within the impact-parameter formalism is applied to the processes H/sup +/ + He(1s/sup 2/) ..-->..H(nl) + He/sup +/(1s) and H/sup +/ + H + He(1s/sup 2/) ..-->..H/sup +/ + He(1s,2l). Electron translation factors are incorporated into the scattering wave function, so that the cross sections obtained are free from the origin dependency. It is shown that stepwise flux promotion is the primary mechanism for excitation and electron capture into excited states at lower energies, and hence it is necessary to include all these channels in the close-coupling method to achieve reliable results.

• Research Organization: Joint Institute for Laboratory Astrophysics, University of Colorado and National Bureau of Standards, Boulder, Colorado 80309
• OSTI ID: 5774166
• Journal Information: Phys. Rev. A; (United States), Journal Name: Phys. Rev. A; (United States) Vol. 31:4; ISSN PLRAA
• Country of Publication: United States
• Language: English

Related Subjects

640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
AMPLITUDES
ATOM COLLISIONS
CAPTURE
CATIONS
CHARGED PARTICLES
COLLISIONS
ELECTRON CAPTURE
ELEMENTS
ENERGY-LEVEL TRANSITIONS
EXCITATION
FLUIDS
GASES
HELIUM
HYDROGEN IONS
HYDROGEN IONS 1 PLUS
IMPACT PARAMETER
ION COLLISIONS
ION-ATOM COLLISIONS
IONS
MOLECULAR IONS
MOLECULAR ORBITAL METHOD
NONMETALS
RARE GASES
TRANSITION AMPLITUDES