CS and IOS approximations for fine structure transitions in Na(/sup 2/P)--He(/sup 1/S) collisions

Journal Article · Sat Nov 15 00:00:00 EST 1980 · J. Chem. Phys.; (United States)

OSTI ID:6815477

Fitz, D E; Kouri, D J

The l-average CS and IOS approximations are extended to treat fine structure transitions in /sup 2/P atom--/sup 1/S atom scattering. Calculations of degeneracy averaged probabilities and differential cross sections for Na(/sup 2/P)+He(/sup 1/S) collisions in the CS and IOS methods agree well with the CC results. The present nonunitarized form of the CS approximation fails to properly predict all of the jm..-->..j'm' sections and in particular leads to a selection rule forbidding jm..-->..j--m transitions for j=half-odd integer values.

• Research Organization: Departments of Chemistry and Physics, University of Houston, Houston, Texas 77004
• OSTI ID: 6815477
• Journal Information: J. Chem. Phys.; (United States), Vol. 73:10
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
HELIUM
ATOM-ATOM COLLISIONS
FINE STRUCTURE
SODIUM
DIFFERENTIAL CROSS SECTIONS
ENERGY-LEVEL TRANSITIONS
P STATES
S STATES
SUDDEN APPROXIMATION
ALKALI METALS
ATOM COLLISIONS
COLLISIONS
CROSS SECTIONS
ELEMENTS
ENERGY LEVELS
FLUIDS
GASES
METALS
NONMETALS
RARE GASES
640304* - Atomic
Molecular & Chemical Physics- Collision Phenomena