Selected Experimental Results from Heavy-Ion Collisions at LHC
Figure 5
(a) for charged pions in central heavy-ion collisions at midrapidity for AGS [50, 51], SPS [52, 53], RHIC [41, 54], and LHC [55] energies. The errors shown are the quadrature sum of statistical and systematic uncertainties. (b) The product of Bjorken energy density, [58], and the formation time () in central heavy-ion collisions at midrapidity as a function of [59–64].
