Pseudorapidity Distribution of Charged Particles and Square Speed of Sound Parameter in 𝑝-𝑝 or 𝑝-𝑝 Collisions over an Energy Range from 0.053 to 7 TeV

Figure 4

Correlations between 𝑐²_𝑠 and √𝑠_𝑁𝑁. The closed and open symbols represent, respectively, the values of 𝑐²_𝑠(𝑃) and 𝑐²_𝑠(𝑆) obtained in Figures 1–3 and listed in Table 1. The two lines described by 𝑐²_𝑠=0.12 and 𝑐²_𝑠=0.30 show a range for different 𝑐²_𝑠.