Hadron Resonance Gas EoS and the Fluidity of Matter Produced in HIC

Figure 4

Comparison of the ratio estimated within our model, i.e., MEHRG (solid magenta curve), with various other methods. The red dashed curve corresponds to the Chapman-Enskog method [43] with constant cross sections. The dashed green curve corresponds to estimations made within the SHMC model of the hadronic matter [44]. The brown dashed curve corresponds to estimations made within the EHRG model [45]. The dot-dashed orchid curve corresponds to of meson gas estimated using the chiral perturbation theory [46].