A parton and hadron cascade model, PACIAE, is applied to follow the particle transport in both the partonic and hadronic stages of the 0–5% most central Au + Au collisions at [Formula: see text]. We have determined the specific heat of π+ + π− in pure hadronic scenario (hadonic final state) and the specific heat of [Formula: see text] in pure partonic scenario (partonic initial state). The specific heat of π+ + π− in hadronic scenario is nearly a factor of 1.2 smaller than that of [Formula: see text] in partonic scenario. However, the s...
