Electron and positron scattering on the Friedel potential

Elastic scattering of electrons and positrons on a Friedel potential is studied in quantum plasmas with electron densities in the range of 1022–1027 cm−3 and particle collision energies in the range of 10−6–102 a.u. by using the partial wave decomposition of the scattering wavefunction. The total and partial-wave cross sections for electron and positron impact show distinct differences in their magnitudes and energy behavior. The structure of total and l = 0, 1, 2 partial wave cross sections is analyzed in terms of the scattering phase shifts.