Proceedings PaperInduced dynamic polarization charge and current density of a relativistic test particle in a nonequilibrium relativistic beam-plasma system
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The effective charge of a test particle in a nonequilibrium beam-plasma system is the sum of the actual charge and the induced dynamic polarization charge surrounding it. Associated with the latter is the induced dynamic polarization current. Expressions are derived for the induced dynamic polarization charge and current density of a relativistic test particle in a nonequilibrium beam-plasma system. These expressions are useful in the calculation of the nonlinear dynamic polarization force on the test particle.