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The coupled states approximation for scattering of two diatomsThe paper presents a detailed development of the coupled-states approximation for the general case of two colliding diatomic molecules. The high-energy limit of the exact Lippman-Schwinger equation is applied, and the analysis follows the Shimoni and Kouri (1977) treatment of atom-diatom collisions where the coupled rotor angular momentum and projection replace the single diatom angular momentum and projection. Parallels to the expression for the differential scattering amplitude, the opacity function, and the nondiagonality of the T matrix are reported. Symmetrized expressions and symmetrized coupled equations are derived. The present correctly labeled coupled-states theory is tested by comparing its calculated results with other computed results for three cases: H2-H2 collisions, ortho-para H2-H2 scattering, and H2-HCl.
Document ID
19780050223
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Heil, T. G.
(Houston Univ. TX, United States)
Kouri, D. J.
(Houston, University Houston, Tex., United States)
Green, S.
(NASA Goddard Institute for Space Studies; Columbia University New York, N.Y.; Houston, University, Houston, Tex., United States)
Date Acquired
August 9, 2013
Publication Date
March 15, 1978
Publication Information
Publication: Journal of Chemical Physics
Volume: 68
Subject Category
Atomic And Molecular Physics
Accession Number
78A34132
Funding Number(s)
CONTRACT_GRANT: NSG-7105
CONTRACT_GRANT: NSF CHE-76-18970
Distribution Limits
Public
Copyright
Other

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