Densities of Valence Electrons in Simple Metals Effective with Respect to Electron-Positron Correlations
G. Kontrym-Sznajd and A. Rubaszek
W. Trzebiatowski Institute of Low Temperature and Structure Research, Polish Academy of Sciences, P.O. Box 937, 50-959 Wrocław, Poland
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The influence of the electron-positron interactions on the momentum density 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 correlations are presented for valence electrons in simple metals.
DOI: 10.12693/APhysPolA.83.333
PACS numbers: 78.70.Bj, 71.20.-b