## QCD phase diagram: A comparison of lattice and hadron resonance gas model calculations

We compare the lattice results on QCD phase diagram for two and three flavors with the hadron resonance gas model (HRGM) calculations. Lines of constant energy density {epsilon} have been determined at different baryo-chemical potentials {mu}{sub B}. For the strangeness chemical potentials {mu}{sub S}, we use two models. In one model, we explicitly set {mu}{sub S}=0 for all temperatures and baryo-chemical potentials. This assignment is used in lattice calculations. In the other model, {mu}{sub S} is calculated in dependence on T and {mu}{sub B} according to the condition of vanishing strangeness. We also derive an analytical expression for the dependencemore »