Strong interacting probes for quark gluon plasma

We discuss hadronic signals for quark gluon plasma formation in relativistic nuclear collisions utilizing a non-equilibrium model for hadronisation of the plasma state. In particular, we find that several (non-)strange antibaryon to baryon ratios may serve as a signal for a baryon-rich plasma state. The? toη ratio turns out to be not a direct signal for plasma formation due to its dependence on details of the collision dynamics and hadronisation mechanism. Finally we argue that the η′ to η ratio might be useful as a “gluonometer” in measuring the gluonic content of the matter formed in the initial stage of the collision process.