Excitation Functions of Related Parameters from Transverse Momentum (Mass) Spectra in High-Energy Collisions

Figure 1

The () spectra, [], of , , , , , and produced at mid- or mid- in central Au-Au collisions at high . The closed and open symbols represent, respectively, the experimental data of positively and negatively charged particles measured by (a–e) the E866 [25] and E895 [26, 27], (f) the E802 [28, 29], (g–o) the STAR [30–32], and (p–q) the PHENIX [33, 34]. Collaborations marked in the panels which appear mostly (g–q), where in (a)–(d), the data for and are taken from the E866 Collaboration [25] and the data for are taken from the E895 Collaboration [26, 27]. The solid and dashed curves are our results fitted by Equation (6) or (7) for positively and negatively charged particles, respectively. The dot-dashed curves are our results fitted by using the weighted average parameter . The dotted curves and asterisks in (a)–(f) represent the MC results for with high ( particles) and low ( particles) statistics, respectively.

(a)

(b)

(c)

(d)

(e)

(f)

(g)

(h)

(i)

(j)

(k)

(l)

(m)

(n)

(o)

(p)

(q)