Electron-molecule scattering studies using bound state variational methods: Application to SSCP scattering and s-wave elastic e+H₂¿ collisions

[摘要] The general problem of scattering of an electron from a homonuclear diatomic molecule is reviewed. Coupled equations, with and without exchange, are derived and scattering amplitude and cross sections obtained in the fixed-nucleus approximation. Application of standard bound state procedures to the problem of scattering from a Static Screened Coulomb Potential produces results which suggest a useful approach to the more complicated problem of elastic e+H2 scattering. This method requires extraction of scattering information from variational wavefunctions in the continuum. It is developed for the elastic e+H2 collision problem, and results are obtained which are in good agreement with those of close-coupling calculations. The procedure also provides insight into the physical nature of the collision.

[发布机构] Rice University