Research Article

Statistical Behavior of Lepton Pair Spectrum in the Drell-Yan Process and Signal from Quark-Gluon Plasma in High-Energy Collisions

Table 1

Values of parameters and in the Lévy-Tsallis function (solid curves), , , and in the two-component Erlang distribution (dashed curves), as well as and in the Hagedorn function (dotted curves) in Figure 1. The is for each fit. The ndof is for the fits of the two-component Erlang distribution. For the fits of Lévy-Tsallis function and Hagedorn function, the ndof needs one more. For Figure 1(f), the selection is not the invariant mass , but the Feynman variable . and for Figure 1, which are not listed in the table.

Figure (GeV) (GeV/) (GeV) (GeV/) (GeV/) (GeV/)ndof

Figure 1(a)19.44-501225216410
5-6820249911
6-7341064310
7-891128
8-96387

Figure 1(b)23.84-51551315711
5-696229911
6-767157411
7-838144010
8-94231429
11-123346

Figure 1(c)27.45-61033515911
6-71848818011
7-81443816511
8-91094512211
11-1221102711
12-1315111610
3-144348

Figure 1(d)38.87-8196427
8-947115210
11.5-13.53274411
13.5-18.094349810

Figure 1(e)21.74.05-4.5041210756313
4.50-4.952279431114
4.95-5.401228818013
5.40-5.8547577911
5.85-6.7544556814
6.75-7.6532487011
7.65-9.0020283312
9.00-10.3515102011
10.35-11.701713209
11.70-13.053337

Figure 1(f)21.7 (1/c)
0.00-0.1032154711
0.10-0.2069259215
0.20-0.30904613413
0.30-0.401206215913
0.40-0.501055719013
0.50-0.601065416213
0.60-0.701415219813
0.70-0.801195516613
0.80-0.90744610111
0.90-1.00256177