| NUKLEONIKA 1997, 42(1):237-243
MANY-BODY THEORY OF ELECTRON-POSITRON INTERACTION
IN METALLIC LITHIUM
H. Stachowiak
W. Trzebiatowski Institute of Low Temperature and Structural Research,
Polish Academy of Sciences, P.O. Box 937, 50-950 Wroclaw 2, Poland
Development of the hypernetted-chain approach to the electronic structure of simple metals offers the possibility to perform many-body calculations of the electron-positron interaction in these materials. A theory of this interaction is proposed and applied to lithium. It leads to a nonlinear three-dimensional integro-differential equation for the enhancement amplitude. This equation is solved for two cases in which it reduces to one dimension.
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