On Extraction of Chemical Potentials of Quarks from Particle Transverse Momentum Spectra in High Energy Collisions

Figure 1

Transverse momentum spectra of (a, c, e) (squares), (circles), and (triangles), as well as (b, d, f) (squares), (circles), and (triangles) produced in Pb-Pb collisions at 17.3 GeV. (a)/(b), (c)/(d), and (e)/(f) correspond to the centralities of 0–5%, 12.5–23.5%, and 33.5–80%, respectively. The symbols represent the experimental data of the NA49 Collaboration [21], and the solid and dashed curves are the results of (14) and (15), respectively.

(a)

(b)

(c)

(d)

(e)

(f)