G. Kontrymsznajd et A. Rubaszek, DENSITIES OF VALENCE-ELECTRONS IN SIMPLE METALS EFFECTIVE WITH RESPECT TO ELECTRON-POSITRON CORRELATIONS, Acta Physica Polonica. A, 83(3), 1993, pp. 333-337
The influence of the electron-positron interactions on the momentum de
nsity of annihilation quanta in real metals is discussed. The role of
momentum dependence of two-particle electron-positron correlations is
set forth. The effective densities describing electron-positron correl
ations are presented for valence electrons in simple metals.