Low-energy electron scattering by atomic nitrogen
- 1 December 1975
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 12 (6), 2369-2377
- https://doi.org/10.1103/physreva.12.2369
Abstract
Matrix variational calculations of electron scattering by atomic N have been carried out, including target configurations , , , and all possible single virtual excitations of and orbitals. Total and differential elastic and inelastic cross sections are reported for energies below the first excitation threshold. In the lowest energy range, scattering is dominated by a shape resonance whose exact location is sensitive to small differences of electronic correlation energy. Results were obtained for several values of a net correlation energy parameter that produces a systematic shift in the resonance position. Detailed cross sections are given for the value of this parameter in best accord with existing low-energy scattering data. A shape resonance is found in the excitation cross section just below the threshold. Estimates are given of the rate constants for deactivation of the and states by thermal electrons. The locations of the and states of , which do not couple to continuum states, are estimated.
Keywords
This publication has 28 references indexed in Scilit:
- Matrix variational calculations of electron scattering by C, N, and O atomsPhysical Review A, 1974
- A general program to calculate atomic continuum processes using the R-matrix methodComputer Physics Communications, 1974
- Polarized pseudo-states for low energy electron-atom scatteringJournal of Physics B: Atomic and Molecular Physics, 1974
- Matrix variational methodComputer Physics Communications, 1973
- Polarized orbital methodsComputer Physics Communications, 1973
- Atomic Bethe-Goldstone Calculations of Term Splittings, Ionization Potentials, and Electron Affinities for B, C, N, O, F, and Ne. II. Configurational ExcitationsPhysical Review A, 1972
- Quasiminimum Principle for Multichannel ScatteringPhysical Review A, 1971
- Search Procedure for Multichannel Resonances in Electron-Atom ScatteringPhysical Review A, 1971
- Scattering of Electrons by C, N, O, , , andPhysical Review B, 1969
- The Low-Energy Scattering of Electrons and Positrons by Hydrogen AtomsReviews of Modern Physics, 1962