Excitation of the b 3 Sigma u + state of H2 by electron impact - Semiclassical exchange potentials at intermediate energies

Details Excitation of the b 3 Sigma u + state of H2 by electron impact - Semiclassical exchange potentials at intermediate energies Excitation of the b 3 Sigma u + state of H2 by electron impact - Semiclassical exchange potentials at intermediate energies

Dec 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980phrva..22.2519w&link_type=abstract

Physical Review A - General Physics, 3rd Series, vol. 22, Dec. 1980, p. 2519-2528.

Physics

General Physics

19

Charge Exchange, Electron Impact, Ground State, Hydrogen, Molecular Energy Levels, Molecular Excitation, Approximation, Electron States, Electron Transitions, Potential Theory, Variational Principles, Wave Functions

Scientific paper

Integrated and differential cross sections for the excitation of the b 3 Sigma u + state of H2, from the ground state, by electron impact, are presented. The energy range of interest is 10.5 to 40.0 eV. The close-coupling equations for this process are solved in five different exchange approximations: exact two-electron exchange terms, no orthogonality; exact two-electron exchange terms, orthogonality; semiclassical exchange terms, no orthogonality, with barrier term; semiclassical exchange terms, no orthogonality, no barrier term; and semiclassical exchange terms, orthogonality, with barrier term. The purpose is to judge the reliability of the semiclassical exchange approximation for electronic excitation of molecules by electron impact at intermediate energies. The results are compared with recent theoretical estimates for the same process.

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