Entropy Behaviour with Nucleon-Antinucleon Asymmetry

The recent STAR Collaborations at RHIC found anti-proton-to-proton ratio about 0.6. Constraining the baryonic density to satisfy this experiment data, a set of hadronic models is studied to investigate the baryonic entropy per particle behaviour. We also investigate the baryonic chemical potential as a function of the anti-nucleon-nucleon ratio. Our results show a systematic increasing(decreasing) of the entropy per particle (baryonic chemical potential) as this ratio increases.