Excitation Function of Initial Temperature of Heavy Flavor Quarkonium Emission Source in High Energy Collisions

Figure 6

Transverse momentum spectra, , of (a, d, e) , (b, f) , and (c, g) in (a–c) and (e–g) and (d) collisions at (a–c) 8, (d) 8.16, and (e–g) 13 TeV. The symbols represent the experimental data measured by the LHCb Collaboration [25–27]. The rapidity intervals for panels (a–c) and (e–f) are , , , , and . The rapidity intervals for (d) are , , , , and . Different sets of data points are scaled by different amounts shown in the panels. The data points are fitted by the Erlang distribution (Eq. (3)), the Hagedorn function (Eq. (4)), and the Tsallis-Levy function (Eq. (6)) by the solid, dashed, and dotted curves, respectively.

(a)

(b)

(c)

(d)

(e)

(f)

(g)