Hadronic resonance production in a partial chemical equilibrium model

Abstract

I will discuss an extended thermal model description of hadronic resonance production in (mid-)central collisions of heavy ions utilizing the partial chemical equilibrium framework. In particular, it is shown how the yields of short-lived resonances like $ ho^0$ and $K^*$ can be used to extract the kinetic freeze-out temperature via an extended thermal fit procedure implemented in the open source Thermal-FIST package. Comparisons to the blast-wave model and predictions for other short-lived resonances are presented as well.