We discuss the relation between the reduction of the K* meson abundance and the kinetic freeze-out in heavy ion collisions. We evaluate the absorption cross sections of the K* meson by light mesons during the hadronic stage, and investigate effects on the K* meson abundance from both the hadronic interactions and decay of K* mesons. We show how the interplay between the interaction of the K* meson and kaon with light mesons in the hadronic medium determines the final yield difference of the statistical hadronization model to the experimental measurements. We also argue that the larger suppression of the yield ratio, K*/K at LHC than at RHIC compared to the expectations from the statistical hadronization model is related to different kinetic freeze-out conditions at RHIC and LHC.
|List of tracks||Freeze-out, hadronisation and statistical models|