Abstract
A reconstruction of 3D electron-positron densities from 2D ACPAR experimental spectra for Mg was performed using Cormack's method and compared with theoretical results. In theoretical calculations the LMTO band structure method was applied. Many-body effects have been incorporated in a local density approximation both for valence and core electrons. These results lead to improved agreement between theory and experiment in comparison to the independent particle model. For the first time an over-enhancement of the higher momentum components was obtained both theoretically and experimentally.
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