Nonthermal and Plasmon Effects on Elastic Electron-Ion Collisions in Hot Quantum Lorentzian Plasmas

The nonthermal and plasmon effects on elastic electron-ion collisions are investigated in hot quantum Lorentzian plasmas. The modified interaction model taking into account the nonthermal screening and plasmon effects is employed to represent the electron-ion interaction potential in hot quantum Lorentzian plasmas. The eikonal phase and differential collision cross-section are obtained as functions of the impact parameter, collision energy, spectral index, and plasma parameters by using the second-order eikonal analysis. It is shown that the plasmon effect suppresses the eikonal phase and collision cross-section for 0 < beta ( h omega(0)/k(B)T < 0.6) and, however, enhances it for 0.6 < beta < 1, where omega(0) is the plasma frequency and T is the plasma temperature. It is also shown that the nonthermal character of the quantum Lorentzian plasma suppresses the elastic electron-ion collision cross-section.The authors would like to thank Professor S. Konar and Professor S. P. Ojha for useful discussion oil atomic collisions in plasmas. The authors Would like to thank the anonymous referees for suggesting improvements to this text. This research was supported by the Catholic University of Daegu