Quantum and Plasma Effects on Screening and Antiscreening Excitation Channels for Ion–Ion Collisions in Dense High-Temperature Plasmas

Abstract

Quantum and plasma effects on the screening and antiscreening channels for ion–ion collisional excitations are investigated in dense high-temperature plasmas using the semiclassical methods. The interaction potential in dense high-temperature plasmas is represented by an effective pseudopotential model. The semiclassical impact-parameter method is applied to the path of the projectile ion in order to visualize the excitation probability as a function of the impact parameter, thermal de Broglie wavelength, Debye length, and collision energy. The semiclassical excitation probability is found to be decreased with increasing the quantum and plasma effects. It is found that the maximum position of the excitation probability is receded from the target nucleus with decreasing the collision energy. The quantum and plasma effects on the antiscreening excitation channel is found to be more significant than that on the the screening excitation channel.