2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/193224We derive the most general Seiberg-Witten maps for noncommutative gauge theories in second order of the noncommutative parameter theta. Our results reveal the existence of more ambiguities than previously known. In particular, we demonstrate that some of these ambiguities enter observables like scattering cross sections and enlarge the parameter space of the noncommutative standard model beyond O(theta).22 pages, LaTeX, 6 eps figures included, added several references and one clarification, accepted for publication in Phys. Rev. DHigh Energy Physics - Phenomenologytext