Spin interference and nonideal effects on electron-electron collisions in nonideal plasmas

Abstract

The spin interference and nonideal effects on electron-electron collisions are investigated in nonideal plasmas. An effective pseudopotential model taking into account the screening and nonideal effects is applied to describe the electron-electron interaction potential in nonideal plasmas. The total spin states of the collision system are considered to obtain high-energy electron-electron collision cross sections. The results show that the differential collision cross section is found to decrease with increasing nonideality plasma parameter γ in the region 0<γ<2 and, however, it increases in the region 2<γ<4. It is found that the spin interference and nonideal screening effects are especially important at the scattering angle θL=π/4. It should also be noted that the differential cross sections have minima near γ=2 and the nonideal effect is found to be more significant at the minima.