title: Vortices in relativistic electron beams
abstract: We demonstrate that a relativistic electron beam is properly described in the moving frame by the electron-magnetohydrodynamic equations of plasma physics. For large beam currents, the accelerator magnetic field is expected to be unstable to the fast magnetic reconnection. We present a plausible saturated state of the fast reconnection, in the form of a complex vortex pattern. The nonlinear dispersion equations of the vortex are derived and the relationship between the vortex structure and the background magnetic field is discussed.
authors.affiliation: Institute of Physics, P.O. Box 57, Yu-11001 Belgrade, Yugoslavia and International Centre for Theoretical Physics, P.O. Box 586, I-34100 Trieste, Italy.
authors.initials: D
authors.lastname: Jovanovic
authors.initials: R
authors.lastname: Fedele
authors.initials: PK
authors.lastname: Shukla