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arxiv: atom-ph/9509006 · v1 · submitted 1995-09-28 · atom-ph · physics.atom-ph

Electron impact excitation cross sections for allowed transitions in atoms

classification atom-ph physics.atom-ph
keywords crosssectionsallowedatomsfactorgaunttransitionsagree
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We present a semiempirical Gaunt factor for widely used Van Regemorter formula [Astrophys. J. 136, 906 (1962)] for the case of allowed transitions in atoms with the LS coupling scheme. Cross sections calculated using this Gaunt factor agree with measured cross sections to within the experimental error.

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