Moments of the dipole oscillator strength distribution and mean excitation energies of helium

Journal Article · Wed Aug 01 04:00:00 EDT 1990 · Physical Review, A (General Physics); (USA)

DOI:https://doi.org/10.1103/PhysRevA.42.1302· OSTI ID:6608290

Sabin, J R; Oddershede, J ^[1]; Diercksen, G H.F. ^[2]

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1. Quantum Theory Project, University of Florida, Gainesville, Florida 32611 (USA) Chemistry Department, Odense University, 5230 Odense M (Denmark)
2. Max Planck Institute for Astrophysics, 8046 Garching (West Germany)

The {ital S}({mu}) and {ital L}({mu}) moments of the dipole oscillator strength distribution and the associated mean excitation energies {ital I}{sub {mu}} have been calculated for the helium atom using the polarization-propagator formalism. It is found that, if correlation is included, agreement with experimental and other theoretical values is good. The mean excitation energy for stopping is found to be {ital I}{sub 0}=42.41 eV.

• OSTI ID: 6608290
• Journal Information: Physical Review, A (General Physics); (USA), Journal Name: Physical Review, A (General Physics); (USA) Vol. 42:3; ISSN PLRAA; ISSN 0556-2791
• Country of Publication: United States
• Language: English

Related Subjects

640302* -- Atomic
Molecular & Chemical Physics-- Atomic & Molecular Properties & Theory
74 ATOMIC AND MOLECULAR PHYSICS
CHARGED PARTICLES
DIPOLES
ELEMENTS
ENERGY-LEVEL TRANSITIONS
EXCITATION
FLUIDS
GASES
HEAVY IONS
HELIUM
IONS
MULTIPOLES
NONMETALS
OSCILLATOR STRENGTHS
RARE GASES
STOPPING POWER