2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/111257A current-current correlator with the quantum numbers of the omega meson is studied in a nuclear medium. Using weighted finite energy sum rules and dispersion relations for the current-nucleon forward scattering amplitude it is shown that strict vector meson dominance and QCD sum rules are incompatible with each other. This implies that at least one of these concepts -- which are both very powerful in the vacuum -- has to fade in the nuclear environment.7 pagesHigh Energy Physics - Phenomenologytext