Differential cross sections for K-shell ionization by electron or positron impact

Details Differential cross sections for K-shell ionization by electron or positron impact Differential cross sections for K-shell ionization by electron or positron impact

2009-10-27

arxiv.org/abs/0910.5213v1

Physics

Atomic Physics

13 pages, 7 figures

Scientific paper

We have investigated the universal scaling behavior of differential cross sections for the single K-shell ionization by electron or positron impact. The study is performed within the framework of non-relativistic perturbation theory, taking into account the one-photon exchange diagrams. In the case of low-energy positron scattering, the doubly differential cross section exhibits prominent interference oscillations. The results obtained are valid for arbitrary atomic targets with moderate values of nuclear charge number Z.

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