Electron Capture in Atomic Collisions

  • V. H. Ponce
Part of the Nato ASI Series book series (NSSB, volume 271)


The collision between two atomic systems is accompanied by electronic transitions, that are produced at finite distances R between the colliding partners. Nevertheless, the calculated cross sections will depend on the atomic interactions at R → ∞, if the long-range nature of the Coulomb forces present is not taken into account by the scheme adopted to describe the collision.

A distorted-wave formalism, which explicitly considers the asymptotic R-1 part of the interatomic potentials, generates the correct boundary conditions for the process, and the resulting transition amplitudes are defined in terms of short-range interactions. First and second-order Born approximations within this scheme, give a reasonable description of total and differential cross sections in the medium and high collision-energy range.


Total Cross Section Differential Cross Section Interatomic Potential Channel Interaction Average Distortion 
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Copyright information

© Plenum Press, New York 1991

Authors and Affiliations

  • V. H. Ponce
    • 1
  1. 1.Dpto. Física de Materiales, Facultad de QuímicaUniversidad del País VascoSan SebastianSpain

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