A number-conserving linear response study of low-velocity ion stopping in a collisional magnetized classical plasma
Abstract
The results of a theoretical investigation on the low-velocity stopping power of the ions moving in a magnetized collisional plasma are presented. The stopping power for an ion is calculated employing linear response theory using the dielectric function approach. The collisions, which leads to a damping of the excitations in the plasma, is taken into account through a number-conserving relaxation time approximation in the linear response function. In order to highlight the effects of collisions and magnetic field we present a comparison of our analytical and numerical results obtained for a nonzero damping or magnetic field with those for a vanishing damping or magnetic field. It is shown that the collisions remove the anomalous friction obtained previously [Nersisyan et al., Phys. Rev. E 61, 7022 (2000)] for the collisionless magnetized plasmas at low ion velocities. One of major objectives of this study is to compare and contrast our theoretical results with those obtained through a novel diffusion formulation based on Dufty-Berkovsky relation evaluated in magnetized one-component plasma models framed on target ions and electrons.
Keywords
Cite
@article{arxiv.1009.1700,
title = {A number-conserving linear response study of low-velocity ion stopping in a collisional magnetized classical plasma},
author = {Hrachya B. Nersisyan and Claude Deutsch and Amal K. Das},
journal= {arXiv preprint arXiv:1009.1700},
year = {2015}
}
Comments
Submitted to Phys. Rev. E, 17 pages, 4 figures