| NUKLEONIKA 1997, 42(1):219-223
SENSITIVITY OF ELECTRON-POSITRON MOMENTUM DENSITIES
TO THE POSITRON WAVE FUNCTION: THEORETICAL AND NUMERICAL RESULTS
H. Sormann1, G. Kontrym-Sznajd2
1 Institut fuer Kernphysik, Technische Universitaet Graz, Petersgasse 16, A-8010 Graz, Austria
2 W. Trzebiatowski Institute of Low Temperature and Structural Research,
Polish Academy of Sciences, P.O. Box 937, 50-950 Wroclaw 2, Poland
In this paper, we study how the electron-positron momentum density of non-interacting particles, r(p), in a periodic lattice potential is influenced by changes of the shape of the positron wave function y+(r). For this purpose, we confront the results of a recently published theory with data obtained by numerical tests. This confrontation confirms and illustrates the validity of all main statements of our theory.
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