The study of critical point based on relativistic hydrodynamical model

The several analyses of QCD suggest the existence of critical end point in the QCD phase diagram. At this point the heat capacity diverges and the long wavelength fluctuations develop. Our purpose is that we discuss possible experimental signatures of critical end point from the point of view of relativistic hydrodynamical model. Here we prepare the equation of states which includes the critical end point and discuss the relation between the location of this point in T-μ plane and the experimental energy region. (author)