Chemical Potentials of Light Flavor Quarks from Yield Ratios of Negative to Positive Particles in Au+Au Collisions at RHIC

Figure 2

Correlations between and for central Au+Au collisions at RHIC. The symbols represent obtained from the ratios by integrating the yield over the given ranges available in experiments in Figure 1. The solid, dashed, and dotted curves are fitted results corresponding to , , and , respectively.