NASA NTRS · 19620000905
A simplification of the second born approximation
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Moiseiwitsch, B. L.. 1961-12-31. A SIMPLIFICATION OF THE SECOND BORN APPROXIMATION. https://ntrs.nasa.gov/citations/19620000905
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In most calculations on inelastic collision of electrons with atoms there has been a general lack of agreement with observation mainly due to the treatment of the interelectronic interaction as a perturbation. In a recent calculation by Vainshtein et al., full account is given to this interaction by treating the problem as a binary collision between the incident and atomic electrons with the motion of their center of mass in the Coulomb field of the nucleus, and marked improvement in comparison of theory and observation has resulted. Three approximations are applied in this calculation which will be described briefly.
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