Rigid rotor plasma model under influence of Carroll–Field–Jackiw electrodynamics

Based on the standard model extension, we investigate the effects of coupling a background field with an electromagnetic field in a scenario of the magnetic confinement of a plasma cylinder with azimuthal current. Examining this coupling of a background field using electrodynamics initially proposed by Carroll, Field, and Jackiw, we arrive at a system of modified Maxwell equations. Based on this proposal, we develop a theoretical model in which we explore different intensity values for the background vector field, making it possible to perceive variations in graphs representing the densities of species comprising the plasma. As observed in the graphs, for a critical value of the background vector field intensity, the profile of the species density curve changes abruptly, demonstrating a trace of what may represent a phase change in the system.