Experimental Results on Charge Fluctuations in Heavy-Ion Collisions

Figure 7

Collision energy and centrality dependence of efficiency corrected and of net-proton distributions from Au + Au and collisions at RHIC [63]. Skellam distributions for corresponding collision centralities are shown for . Shaded hatched bands are the results from UrQMD. In (b) and (c), the shaded solid bands are the expectations assuming independent proton and antiproton production. The HRG values for and /Skellam are unity [68, 72]. The error bars are statistical and caps are systematic errors.

(a)

(b)

(c)