2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/191762In this paper we apply the formalism of local composite operators as developed by Verschelde et al. in combination with a constant chromomagnetic field as considered in the seventies by Savvidy and others. We find that a nonzero <A_μ^2> minimizes the vacuum energy, as in the case with no chromomagnetic field, and that the chromomagnetic field itself is near-to zero. The Nielsen-Olesen instability, caused by the imaginary part in the action, also vanishes. We further investigate the effect of an external chromomagnetic field on the value of <A_μ^2>, finding that this condensate is destroyed by sufficiently strong fields. The inverse scenario, where <A_μ^2> is considered as external, results in analogous findings: when this condensate is sufficiently large, the induced chromomagnetic field is lowered to a perturbative value slightly below the applied <A_μ^2>.11 pages, 8 figuresHigh Energy Physics - TheoryResolving the instability of the Savvidy vacuum by dynamical gluon masstext