Plasmon and spin interference effects on electron collisions in hot quantum plasmas

The effects of plasmon and spin interference in electron-electron collisions are investigated in hot quantum plasmas. It is shown that the plasmon effect suppresses the electron-electron collision cross section for 0 omega(0)/k(B)T) < 0.8 but, enhances the cross section for 0.8 < beta < 1, where omega(0) is the plasma frequency and T is the plasma temperature. In addition, it is shown that the spin interference effect strongly suppresses the collision cross section and is more significant near the scattering angle theta(L) = pi/4.One of the authors (Y-D Jung) gratefully acknowledges the Director-General Professor O Motojima, Director Professor M Sato, Director Professor Y Hirooka and Professor I Murakami for the warm hospitality while visiting the National Institute for Fusion Science (NIFS) in Japan as a long-term visiting professor. The authors are also grateful to NIFS for supporting the research. This work was done while Y-DJ visited NIFS