2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/191164An exact solution of the two center time-dependent Dirac equation for pair production induced by ultrarelativistic heavy ion collisions is presented. Cross sections to specific final states approach those of perturbation theory. Multiplicity rates are reduced from perturbation theory.22 pages, latex, revtex source, one postscript figureNuclear TheoryHigh Energy Physics - PhenomenologyAtomic Physicstext