7 O ct 1 99 7 A light - fronts approach to electron - positron pair production in ultra - relativistic heavy - ion collisions


We perform a gauge-transformation on the time-dependent Dirac equation describing the evolution of an electron in a heavy-ion collision to remove the explicit dependence on the long-range part of the interaction. We solve, in an ultra-relativistic limit, the gauged-transformed Dirac equation using light-front variables and a light-fronts representation… (More)