Abstract
A new theoretical method for calculating (e, 2e) differential cross sections on atoms and its numerical implementation is presented. The method covers all of the previously-reported distorted-wave and first-order (e, 2e) theories as its subcases. Six-dimensional numerical integration in Cartesian coordinates has been used for calculating the (e, 2e) T-matrix elements rather than the traditional partial wave formalism. Some of the previously published results are reproduced by the method as a test. New applications of the existing (e, 2e) methods are presented. It is shown that none of the methods could describe satisfactorily all of the experimental data considered.
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