Surprisal-based predictions of classical integral cross sections for rotational transitions in He+CO/sub 2/

Journal Article · Tue Mar 15 04:00:00 EST 1977 · J. Chem. Phys.; (United States)

OSTI ID:7124391

Goldflam, R; Kouri, D J; Preston, R K; Pack, R T

The surprisal analysis of Bernstein and Levine is employed as the basis of an interpolation scheme for fitting and predicting rotationally inelastic cross sections. The thermal prior of Bernstein and Levine is used, and the cross sections for the 5..-->..j/sub f/ and 19..-->..j/sub f/ transitions in He+CO/sub 2/ (computed using classical mechanics) are employed to fix the constants in the surprisal formula. Results of using only the 5..-->..j/sub f/ transitions as input are studied as to their ability to predict the transitions 19..-->..j/sub f/, and vice versa. In addition, all possible transitions are predicted using the two sets of input separately and together. Results for predicted cross sections are sufficiently accurate to be useful for other applications and indicate the usefulness of this approach.

• Research Organization: Departments of Chemistry and Physics, University of Houston, Houston, Texas 77004
• OSTI ID: 7124391
• Journal Information: J. Chem. Phys.; (United States), Journal Name: J. Chem. Phys.; (United States) Vol. 66:6; ISSN JCPSA
• Country of Publication: United States
• Language: English

Related Subjects

640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
ATOM COLLISIONS
ATOM-MOLECULE COLLISIONS
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CHALCOGENIDES
COLLISIONS
CROSS SECTIONS
CRYOGENIC FLUIDS
ELEMENTS
ENERGY LEVELS
ENERGY-LEVEL TRANSITIONS
EXCITED STATES
FLUIDS
HELIUM
INELASTIC SCATTERING
INTEGRAL CROSS SECTIONS
INTERPOLATION
MOLECULE COLLISIONS
NONMETALS
NUMERICAL SOLUTION
OXIDES
OXYGEN COMPOUNDS
RARE GASES
ROTATIONAL STATES
SCATTERING