Balance Function in High-Energy Collisions

Figure 19

The balance function width extracted from for identified charged pions and kaons from Au+Au collisions at  GeV and pp collisions at  GeV where is the width. Filtered HIJING and UrQMD calculations are shown for pions and kaons from Au+Au collisions at  GeV. Values are shown for from Au+Au collisions, where is the mass of a pion or a kaon, and is calculated from identified particle spectra [41]. The width predicted by the blast-wave model [39] is also shown for pions. The graph is taken from [28].