Ionisation Differential Cross Section Measurements for N₂ at Low Incident Energy in Coplanar and Non-Coplanar Geometries
Ionisation triple differential cross sections have been determined experimentally and theoretically for the neutral molecule N2 over a range of geometries from coplanar to the perpendicular plane. Data were obtained at incident electron energies ~10 and ~20 eV above the ionisation potential of the 3σg, 1u and 2σg states, using both equal and non-equal outgoing electron energies. The data were taken with the incident electron beam in the scattering plane (ψ = 0°), at 45° to this plane and orthogonal to the plane (ψ = 90°). The set of nine measured differential cross sections at a given energy were then inter-normalised to each other. The data are compared to new calculations using various distorted wave methods, and differences between theory and experiment are discussed.
A. Sakaamini et al., "Ionisation Differential Cross Section Measurements for N₂ at Low Incident Energy in Coplanar and Non-Coplanar Geometries," Journal of Physics B: Atomic, Molecular and Optical Physics, vol. 49, no. 19, Institute of Physics Publishing, Sep 2016.
The definitive version is available at https://doi.org/10.1088/0953-4075/49/19/195202
Center for High Performance Computing Research
Keywords and Phrases
Dissociation; Einsteinium; Electron Energy Levels; Electrons; Ionization; Nitrogen; Differential Cross Section; Distorted Wave Methods; Electron Impact; Incident Electron Beams; Incident Electrons; Non-Coplanar; Perpendicular-Plane; Triple Differential Cross Sections; Impact Ionization
International Standard Serial Number (ISSN)
Article - Journal
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01 Sep 2016