MESON PROPERTIES FROM A BAG MODEL COMPARED TO LATTICE THEORY AND HEAVY-ION EXPERIMENTS

A bag at temperature (T) with pressure B(T) = B(0)[1 - (T/T(c))4] is s hown to be consistent with recent lattice data on the pi and the rho m esons. The limiting temperature, T(l), of the pion bag from the Bekens tein entropy bound is lower than that of other mesons. This agrees wit h the thermal distribution of pi, K and the rho in heavy ion collision s, which (unlike proton-nucleus or pp data) show a marked difference i n T of pion and other mesons in the mid-rapidity region.