Thermal Freeze-Out Parameters and Pseudoentropy from Charged Hadron Spectra in High-Energy Collisions

Figure 1

Transverse momentum spectra of (a), (b), (c), (d), (e), and (f) produced in 7.7 GeV Au-Au collisions with various centrality intervals and at the midrapidity. The symbols represent the experimental data measured by the STAR Collaboration in the RHIC-BES program [33, 34] and rescaled by different amounts marked in the panels. The curves are our results fitted by Equation (4) for and (panels (a)–(d)) or Equation (6) for and (panels (e) and (f)).

(a)

(b)

(c)

(d)

(e)

(f)