QGP fireball explosion

. We identify the major physics milestones in the development of strange hadrons as an observable for both the formation of quark-gluon plasma, and of the ensuing explosive disintegration of deconfined matter fireball formed in relativistic heavy ion collisions at 160–20 A GeV. We describe the physical properties of QGP phase and show agreement with the expectations based on an analysis of hadron abundances. We than also demonstrate that the m ⊥ shape of hadron spectra is in qualitative agreement with the sudden breakup of a supercooled QGP fireball.