Effect of resonances on 2s-2p and 2l-3l' excitation of Li-like ions by electron impact
Journal Article
·
· Phys. Rev. A; (United States)
Collision strengths are calculated in a five-state close-coupling approximation for excitation of C/sup 3 +/, O/sup 5 +/, Ne/sup 7 +/, and Ar/sup 15 +/ by electron impact for energies less than the 3d threshold. Resonance contributions enhance the allowed 2p-3s collision strength by larger factors than the enhancement of the forbidden 2s-3s collision strength. The resonance enhancement is approximately independent of nuclear charge Z for 2s-3s, 2s-3p, and 2p-3p, and increases nearly linearly with Z for 2p-3s. The average effect of resonance contributions to ..cap omega..(2s,2p) is only 4%.
- Research Organization:
- Department of Physics and Astronomy, Louisiana State University, Baton Rouge, Louisiana 70803
- OSTI ID:
- 6421803
- Journal Information:
- Phys. Rev. A; (United States), Journal Name: Phys. Rev. A; (United States) Vol. 26:4; ISSN PLRAA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
A RESONANCES
ALKALI METALS
ARGON IONS
ATOMS
BOSONS
CARBON IONS
CHARGED PARTICLES
COLLISIONS
CROSS SECTIONS
ELECTRON COLLISIONS
ELECTRON-ION COLLISIONS
ELEMENTARY PARTICLES
ELEMENTS
ENERGY-LEVEL TRANSITIONS
EXCITATION
HADRONS
ION COLLISIONS
IONS
ISOELECTRONIC ATOMS
LITHIUM
MESON RESONANCES
MESONS
METALS
OXYGEN IONS
RESONANCE PARTICLES
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
A RESONANCES
ALKALI METALS
ARGON IONS
ATOMS
BOSONS
CARBON IONS
CHARGED PARTICLES
COLLISIONS
CROSS SECTIONS
ELECTRON COLLISIONS
ELECTRON-ION COLLISIONS
ELEMENTARY PARTICLES
ELEMENTS
ENERGY-LEVEL TRANSITIONS
EXCITATION
HADRONS
ION COLLISIONS
IONS
ISOELECTRONIC ATOMS
LITHIUM
MESON RESONANCES
MESONS
METALS
OXYGEN IONS
RESONANCE PARTICLES