Generalized oscillator strength for the 3s-3p transition in sodium

Journal Article · Fri May 15 04:00:00 EDT 1987 · Phys. Rev. A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.35.4434· OSTI ID:6010320

Mitroy, J

Solutions of the close-coupling equations are obtained for sodium in a four-state approximation (3s,3p,4s,3d) at energies of 22.1, 54, and 150 eV. Generalized oscillator strengths (GOS) deduced from the resulting differential cross sections for the 3s-3p transition are plotted as a function of momentum transfer squared (K/sup 2/). The resulting GOS do not tend to the exact value of the optical oscillator strength as K/sup 2/ goes to 0, thus violating Lassettre's hypothesis. While Lassettre's theorem is not satisfied exactly, the concepts underlying this hypothesis are still useful at sufficiently high energies.

• Research Organization: Joint Institute for Laboratory Astrophysics, University of Colorado and National Bureau of Standards, Boulder, Colorado 80309-0440
• OSTI ID: 6010320
• Journal Information: Phys. Rev. A; (United States), Journal Name: Phys. Rev. A; (United States) Vol. 35:10; ISSN PLRAA
• Country of Publication: United States
• Language: English

Related Subjects

640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
ALKALI METALS
ATOM COLLISIONS
COLLISIONS
CROSS SECTIONS
DIFFERENTIAL CROSS SECTIONS
ELECTRON COLLISIONS
ELECTRON-ATOM COLLISIONS
ELECTRONIC STRUCTURE
ELEMENTS
ENERGY-LEVEL TRANSITIONS
METALS
MOMENTUM TRANSFER
OSCILLATOR STRENGTHS
SODIUM