Rotational inelasticity in high-energy H2H2 collisions

Ramakrishna Ramaswamy; Herschel Rabitz; Sheldon Green

doi:10.1016/0301-0104(78)80009-3

Rotational inelasticity in high-energy H₂H₂ collisions

Ramakrishna Ramaswamy, Herschel Rabitz, Sheldon Green

Research output: Contribution to journal › Article

9 Scopus citations

Abstract

Rotational cross sections for transitions in the H₂H₂ system have been calculated for energies up to ≈ 2.0 eV and for rotor levels up to j = 11 in the effective potential approximation. The cases of para H₂-para H₂, ortho H₂-ortho H₂ and ortho H₂-para H₂ are considered. Correlations and trends in the cross sections have been examined, and it is shown that the high-energy collisions are dominated by coupling effects. The results of this analysis also suggest that the collision process may be profitably viewed as a diffusion of probability among the levels.

Original language	English (US)
Pages (from-to)	319-329
Number of pages	11
Journal	Chemical Physics
Volume	28
Issue number	3
DOIs	https://doi.org/10.1016/0301-0104(78)80009-3
State	Published - Mar 1 1978

All Science Journal Classification (ASJC) codes

Physics and Astronomy(all)
Physical and Theoretical Chemistry

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10.1016/0301-0104(78)80009-3

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Ramaswamy, R., Rabitz, H., & Green, S. (1978). Rotational inelasticity in high-energy H₂H₂ collisions. Chemical Physics, 28(3), 319-329. https://doi.org/10.1016/0301-0104(78)80009-3

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abstract = "Rotational cross sections for transitions in the H2H2 system have been calculated for energies up to ≈ 2.0 eV and for rotor levels up to j = 11 in the effective potential approximation. The cases of para H2-para H2, ortho H2-ortho H2 and ortho H2-para H2 are considered. Correlations and trends in the cross sections have been examined, and it is shown that the high-energy collisions are dominated by coupling effects. The results of this analysis also suggest that the collision process may be profitably viewed as a diffusion of probability among the levels.",

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AB - Rotational cross sections for transitions in the H2H2 system have been calculated for energies up to ≈ 2.0 eV and for rotor levels up to j = 11 in the effective potential approximation. The cases of para H2-para H2, ortho H2-ortho H2 and ortho H2-para H2 are considered. Correlations and trends in the cross sections have been examined, and it is shown that the high-energy collisions are dominated by coupling effects. The results of this analysis also suggest that the collision process may be profitably viewed as a diffusion of probability among the levels.

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