Sudden rotation calculations of atom--molecule scattering. [Cross sections, 1,2 to 4,2 GeV]

Journal Article · Sat Jan 01 04:00:00 EST 1977 · J. Chem. Phys.; (United States)

OSTI ID:7327883

Bowman, J M; Leasure, S C

Rotational inelastic cross sections for two atom--rigid rotor systems, /sup 4/He+H/sub 2/(j) and /sup 4/He+I/sub 2/* (j), have been calculated using a quantal sudden approximation that we term the sudden rotation approximation. Vibrational inelastic cross sections have also been calculated for /sup 4/He+H/sub 2/(..nu..,j) using a two and three vibration basis set for total energies between 1.2 and 4.2 eV. The present results for /sup 4/He+H/sub 2/ are compared with the coupled channel and coupled states results of McGuire and Kouri and with the two vibration results of McGuire. The /sup 4/He+I/sub 2/* results are compared with quasiclassical trajectory calculations and the experiments of Steinfeld and co-workers. (AIP)

• Research Organization: Department of Chemistry, Illinois Institute of Technology, Chicago, Illinois 60616
• OSTI ID: 7327883
• Journal Information: J. Chem. Phys.; (United States), Journal Name: J. Chem. Phys.; (United States) Vol. 66:1; 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
COLLISIONS
CROSS SECTIONS
CRYOGENIC FLUIDS
ELEMENTS
ENERGY LEVELS
ENERGY RANGE
ENERGY TRANSFER
EV RANGE
EV RANGE 01-10
EXCITED STATES
FLUIDS
HALOGENS
HELIUM
HYDROGEN
IODINE
MOLECULE COLLISIONS
NONMETALS
RARE GASES
ROTATIONAL STATES
VIBRATIONAL STATES