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Title: Electron-impact ionization of Li{sup +}

Abstract

Electron-impact ionization cross sections for Li{sup +} are calculated using the R matrix with pseudostates method and time-dependent close-coupling theory. The largest R-matrix calculation includes 11 spectroscopic states from the configurations 1s{sup 2}, 1s2l, and 1s3l; an additional 56 pseudostates from the configurations 1sn(bar sign)l with n(bar sign)=4-10 and l=0-3; and enough continuum orbitals to adequately describe incident energies up to 175 eV. The largest time-dependent close-coupling calculations involved 16 partial differential equations on a 300x300 point radial lattice. The nonperturbative R matrix with pseudostate and time-dependent close-coupling calculations, as well as perturbative distorted-wave calculations, are in good agreement with the crossed-beams experimental measurements of Lineberger et al. [Phys. Rev. 141, 151 (1966)], but are slightly above the Peart and Dolder [J. Phys. B 2, 872 (1968)] and Mueller et al. [Phys. Rev. Lett. 63, 758 (1989)] measurements. (c) 2000 The American Physical Society.

Authors:
 [1];  [1];  [1];  [2]
  1. Department of Physics, Auburn University, Auburn, Alabama 36849 (United States)
  2. Department of Physics, Rollins College, Winter Park, Florida 32749 (United States)
Publication Date:
OSTI Identifier:
20216404
Resource Type:
Journal Article
Journal Name:
Physical Review. A
Additional Journal Information:
Journal Volume: 61; Journal Issue: 5; Other Information: PBD: May 2000; Journal ID: ISSN 1050-2947
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; LITHIUM IONS; IONIZATION; ELECTRON-ION COLLISIONS; R MATRIX; COUPLING; EXPERIMENTAL DATA; THEORETICAL DATA

Citation Formats

Pindzola, M. S., Mitnik, D. M., Colgan, J., and Griffin, D. C. Electron-impact ionization of Li{sup +}. United States: N. p., 2000. Web. doi:10.1103/PhysRevA.61.052712.
Pindzola, M. S., Mitnik, D. M., Colgan, J., & Griffin, D. C. Electron-impact ionization of Li{sup +}. United States. doi:10.1103/PhysRevA.61.052712.
Pindzola, M. S., Mitnik, D. M., Colgan, J., and Griffin, D. C. Mon . "Electron-impact ionization of Li{sup +}". United States. doi:10.1103/PhysRevA.61.052712.
@article{osti_20216404,
title = {Electron-impact ionization of Li{sup +}},
author = {Pindzola, M. S. and Mitnik, D. M. and Colgan, J. and Griffin, D. C.},
abstractNote = {Electron-impact ionization cross sections for Li{sup +} are calculated using the R matrix with pseudostates method and time-dependent close-coupling theory. The largest R-matrix calculation includes 11 spectroscopic states from the configurations 1s{sup 2}, 1s2l, and 1s3l; an additional 56 pseudostates from the configurations 1sn(bar sign)l with n(bar sign)=4-10 and l=0-3; and enough continuum orbitals to adequately describe incident energies up to 175 eV. The largest time-dependent close-coupling calculations involved 16 partial differential equations on a 300x300 point radial lattice. The nonperturbative R matrix with pseudostate and time-dependent close-coupling calculations, as well as perturbative distorted-wave calculations, are in good agreement with the crossed-beams experimental measurements of Lineberger et al. [Phys. Rev. 141, 151 (1966)], but are slightly above the Peart and Dolder [J. Phys. B 2, 872 (1968)] and Mueller et al. [Phys. Rev. Lett. 63, 758 (1989)] measurements. (c) 2000 The American Physical Society.},
doi = {10.1103/PhysRevA.61.052712},
journal = {Physical Review. A},
issn = {1050-2947},
number = 5,
volume = 61,
place = {United States},
year = {2000},
month = {5}
}