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Electron terms and resonant charge exchange involving oxygen atoms and ions

  • Atoms, Molecules, Optics
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Abstract

The electron terms are constructed for oxygen dimer ions at large ion-atom distances taking into account a certain scheme of summation of electron momenta on the basis of a hierarchy of various ion-atom interactions. Because the number of interaction types exceeds that in the Hund scheme, a realistic hierarchy of interactions and corresponding quantum numbers of the diatomic ion are outside the Hund coupling scheme. Electron terms are evaluated for the oxygen dimer ion in the case where the ground and first excited states of an atom and an ion belong to the respective valence electron shells p 4 and p 3 and correspond to the range of separations that determine the cross sections of resonant charge exchange in plasma. These electron terms allow us to calculate the partial and average cross sections for resonant charge exchange involving an oxygen ion and atom in the ground and first excited states in the range of collision energies of interest for oxygen plasmas. The specific features of electron terms of the oxygen ion dimer and the cross section of electron transfer are analyzed.

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Authors and Affiliations

  1. Institute for High Temperatures, Russian Academy of Sciences, Moscow, 127412, Russia

    A. V. Kosarim & B. M. Smirnov

Authors
  1. A. V. Kosarim
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  2. B. M. Smirnov
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Additional information

From Zhurnal Éksperimental’no\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l}\) i Teoretichesko\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l}\) Fiziki, Vol. 128, No. 4, 2005, pp. 714–731.

Original English Text Copyright © 2005 by Kosarim, Smirnov.

The text was submitted by the authors in English.

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Kosarim, A.V., Smirnov, B.M. Electron terms and resonant charge exchange involving oxygen atoms and ions. J. Exp. Theor. Phys. 101, 611–627 (2005). https://doi.org/10.1134/1.2131929

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  • DOI: https://doi.org/10.1134/1.2131929

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