2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/201323Is the new state of matter formed in relativistic heavy ion collisions the deconfined quark--gluon plasma? We survey the status of several strange hadron observables and discuss how these measurement help understand the dense hadronic matter.Lecture Notes for the Cracow School of Theoretical Physics, XLVIe Course, 2006. 30 pagesHigh Energy Physics - PhenomenologyNuclear Theorytext