Indication of a Differential Freeze-Out in Proton-Proton and Heavy-Ion Collisions at RHIC and LHC Energies

Figure 12

Fitting of invariant spectra with Tsallis distribution using (7) for [19, 20], [19, 20], and [19, 20] in most peripheral Pb + Pb collisions at = 2.76 TeV. Symbols represent the data points and line is the fit function.