Artículos de revistas
Elastic and rotational excitation cross sections for electron scattering by polyatomic molecules
Registro en:
Brazilian Journal of Physics. Sociedade Brasileira de Física, v. 32, n. 3, p. 804-811, 2002.
0103-9733
S0103-97332002000400023
10.1590/S0103-97332002000400023
Autor
Machado, L. E.
Brescansin, L. M.
Lee, M.-T.
Institución
Resumen
In this work we present a theoretical study on electron scattering by both polar and nonpolar polyatomic molecules in the low-energy range. More specifically, we report calculated elastic and rotationally inelastic differential cross sections for electron scattering by CH4, H2O, and H2S in the (2.14-30)-eV range. Exact static-exchange plus model correlation-polarization potentials are used to represent the electron-molecule interaction. The Schwinger variational iterative method is used to solve the scattering equations. In addition, the adiabatic-nuclei-rotation approximation is applied to calculate rotational cross sections. The comparison of our calculated results with experimental and other theoretical data available in the literature is encouraging. 804 811