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Article
Spin-Exchange Cross Section for Electron Excitation of Na 3S 3P Determined by a Novel Spectroscopic Technique
Physical Review A
  • Xianming Han, Butler University
  • G. W. Schwinn
  • A. Gallagher
Document Type
Article
Publication Date
1-1-1988
DOI
http://dx.doi.org/10.1103/PhysRevA.38.535
Abstract
An experimental technique is described which enables determination of the partial cross sections for electron excitation of atoms as a function of changes in spin and orbital angular momentum. This method provides a good signal-to-noise ratio in the energy region near threshold, and could be used to study long- or short-lived excited states of many atomic systems. Measurements for Na 3S−3P, near-threshold excitation are reported here. The results are generally in good agreement with the close-coupling calculations of D. L. Moores and D. W. Norcross [J. Phys. B 5, 1482 (1972)] for the largest ΔmS and ΔmL components of the cross section, but not for the component with |ΔmS|=1 and |ΔmL|=1, indicating that the exchange interaction is larger than previously recognized.
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This article was archived with permission from APS Physics, all rights reserved. Document also available from Physical Review A.

Citation Information
Xianming Han, G. W. Schwinn and A. Gallagher. "Spin-Exchange Cross Section for Electron Excitation of Na 3S 3P Determined by a Novel Spectroscopic Technique" Physical Review A Vol. 38 Iss. 1 (1988)
Available at: http://works.bepress.com/xianming_han/13/