2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/44744We consider the QCD sum rules approach for Delta-isobar magnetic form factor in the infra-red region $0<Q^2<1GeV^2$. The QCD sum rules in external variable field are used. The obtained formfactor is in agreement with quark model predictions for the Delta-isobar magnetic moment.13 pages, CEBAF-TH-93-02, Latex, 1 FigureHigh Energy Physics - Phenomenologytext