title: Electron scattering cross sections from HCN over a broad energy range (0.1-10,000 eV): Influence of the permanent dipole moment on the scattering process.
abstract: We report theoretical integral and differential cross sections for electron scattering from hydrogen cyanide derived from two ab initio scattering potential methods. For low energies (0.1-100 eV), we have used the symmetry adapted-single centre expansion method using a multichannel scattering formulation of the problem. For intermediate and high energies (10-10,000 eV), we have applied an optical potential method based on a screening corrected independent atom representation. Since HCN is a strong polar molecule, further dipole-induced excitations have been calculated in the framework of the first Born approximation and employing a transformation to a space-fixed reference frame of the calculated K-matrix elements. Results are compared with experimental data available in the literature and a complete set of recommended integral elastic, inelastic, and total scattering cross sections is provided from 0.1 to 10,000 eV.
authors.affiliation: Instituto de Física Fundamental, Consejo Superior de Investigaciones Científicas, Serrano 113-bis, 28006 Madrid, Spain.
authors.forename: A G
authors.initials: AG
authors.lastname: Sanz
authors.forename: M C
authors.initials: MC
authors.lastname: Fuss
authors.forename: F
authors.initials: F
authors.lastname: Blanco
authors.forename: F
authors.initials: F
authors.lastname: Sebastianelli
authors.forename: F A
authors.initials: FA
authors.lastname: Gianturco
authors.forename: G
authors.initials: G
authors.lastname: García
mesh_terms: D004583:Electrons; D006856:Hydrogen Cyanide / Q000737:chemistry*; D011789:Quantum Theory
chemical_list: D006856:Hydrogen Cyanide