Searching for Minimum in Dependence of Squared Speed-of-Sound on Collision Energy

Figure 3

Dependences of (a) and (b) on . The symbols represent the values listed in Table 1 (for the energy range  GeV), or taken from our previous work [25, 26] (for the energy range  GeV). The line segments for - collisions at SPS and higher energies are given for guiding the eyes, and the two dotted lines in (b) show and 1/2, respectively. We would like to point out that we distinguish different objects by shapes not colors. The black and green objects have the same meanings as those of red and blue ones.

(a)

(b)