2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/43860The quark-gluon plasma close to the critical temperature is a strongly interacting system. Using strongly coupled, classical, non-relativistic plasmas as an analogy, we argue that the quark-gluon plasma is in the liquid phase. This allows to understand experimental observations in ultrarelativistic heavy-ion collisions and to interpret lattice QCD results. It also supports the indications of the presence of a strongly coupled QGP in ultrarelativistic heavy-ion collisions.8 pages, 2 figures, final version, to bepublished in J. Phys. GHigh Energy Physics - PhenomenologyNuclear TheoryPlasma Physicstext