2.5 Dimensional Particle-in-Cell Simulations of Relativistic Plasma   Collisions
  We use electromagnetic Particle-in-Cell codes to investigate the two-stream instability and Weibel instability when two beams of plasma collide head-on relativistically. We compare the dissipation of kinetic energies in the two cases. We also study the evolution of the resultant electron energy distribution function produced by such dissipation. 
Orestes P. Hastings IV, Edison Liang