2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/210595Using the stationary lightcone perturbation theory, we propose the complete and careful derivation the JIMWLK equation. We show that the rigorous treatment requires the knowledge of a boosted wave function with second order accuracy. Previous wave function approaches are incomplete and implicitly used the time ordered perturbation theory, which requires a usage of an external target field.6 pages, motivation added, abstract changed, typos correctedHigh Energy Physics - Phenomenologytext