Charged Particle, Photon Multiplicity, and Transverse Energy Production in High-Energy Heavy-Ion Collisions

Figure 43

The ratio of and at midrapidity, as a function of center of mass energy. Experimental data are compared to the predictions from thermal model, gluon saturation model, and the estimations obtained in the framework of the hybrid model fitting to transverse energy and charged particle data. The Figure is taken from [43].