Effect of phase and orbital wave parameter choices on CS and IOS degeneracy averaged differential cross sections
Journal Article
·
· J. Chem. Phys.; (United States)
The effect of phase choice and partial wave parameter choice on CS and IOS inelastic degeneracy averaged differential cross sections is studied. An approximate simplified CS scattering amplitude for l-bar=1/2(l'+l) is derived and is shown to have a form which closely resembles the McGuire--Kouri scattering amplitude for odd ..delta..j transitions and reduces to it for even ..delta..j transitions. The choice of phase in the CS wave function is shown to result in different approximations which yield significantly different shapes for the degeneracy averaged differential cross section. Time reversal symmetry arguments are employed to select the proper phase choice. IOS calculations of the degeneracy averaged differential cross sections of He--CO, He--Cl and Ne--HD using l-bar=1/2(l+l') and the phase choice which ensures proper time reversal symmetry are found to correct the phase disagreement which was previously noted for odd ..delta..j transitions using l-bar=l or l' and either the time reversal phase or other phase choices.
- Research Organization:
- Departments of Chemistry and Physics, University of Houston, Houston, Texas 77004
- OSTI ID:
- 5122691
- Journal Information:
- J. Chem. Phys.; (United States), Journal Name: J. Chem. Phys.; (United States) Vol. 73:6; ISSN JCPSA
- Country of Publication:
- United States
- Language:
- English
Similar Records
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Journal Article
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Tue Nov 14 23:00:00 EST 1978
· J. Chem. Phys.; (United States)
·
OSTI ID:6537035
CS and IOS approximations for fine structure transitions in Na(/sup 2/P)--He(/sup 1/S) collisions
Journal Article
·
Fri Nov 14 23:00:00 EST 1980
· J. Chem. Phys.; (United States)
·
OSTI ID:6815477
J/sub z/-conserving coupled states approximation: Magnetic transitions and angular distributions in rotating and fixed frames. [T matrix, helicity, integrals, scattering amplitude, cross sections]
Journal Article
·
Fri Jul 01 00:00:00 EDT 1977
· J. Chem. Phys.; (United States)
·
OSTI ID:7215116
Related Subjects
640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
ATOM COLLISIONS
ATOM-MOLECULE COLLISIONS
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CHALCOGENIDES
COLLISIONS
CROSS SECTIONS
DEUTERIDES
DEUTERIUM COMPOUNDS
DIFFERENTIAL CROSS SECTIONS
ELEMENTS
ENERGY LEVELS
ENERGY-LEVEL TRANSITIONS
EXCITED STATES
HELIUM
HYDROCHLORIC ACID
HYDROGEN COMPOUNDS
HYDROGEN DEUTERIDE
INELASTIC SCATTERING
INORGANIC ACIDS
MOLECULE COLLISIONS
NONMETALS
OXIDES
OXYGEN COMPOUNDS
RARE GASES
ROTATIONAL STATES
SCATTERING
SUDDEN APPROXIMATION
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
ATOM COLLISIONS
ATOM-MOLECULE COLLISIONS
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CHALCOGENIDES
COLLISIONS
CROSS SECTIONS
DEUTERIDES
DEUTERIUM COMPOUNDS
DIFFERENTIAL CROSS SECTIONS
ELEMENTS
ENERGY LEVELS
ENERGY-LEVEL TRANSITIONS
EXCITED STATES
HELIUM
HYDROCHLORIC ACID
HYDROGEN COMPOUNDS
HYDROGEN DEUTERIDE
INELASTIC SCATTERING
INORGANIC ACIDS
MOLECULE COLLISIONS
NONMETALS
OXIDES
OXYGEN COMPOUNDS
RARE GASES
ROTATIONAL STATES
SCATTERING
SUDDEN APPROXIMATION