Review Article

A Review on ϕ Meson Production in Heavy-Ion Collision

Table 2

Results from exponential fits to the transverse mass distributions of the meson. All values are for midrapidity ().

Centrality /ndf (GeV)

Pb + Pb (2.76 TeV) 0–10% 4.28/6 0.5005 ± 0.0128 12.41 ± 0.795
10–20% 4.793/6 0.5131 ± 0.013 8.973 ± 0.502
20–30% 4.032/6 0.5024 ± 0.0127 4.032 ± 0.412
30–40% 1.88/6 0.5027 ± 0.0130 4.171 ± 0.013
40–50% 4.036/6 0.4961 ± 0.0137 2.550 ± 0.0162
50–60% 8.356/6 0.4901 ± 0.0146 1.408 ± 0.014
60–70% 5.937/6 0.4891 ± 0.0156 0.679 ± 0.047
70–80% 10.12/6 0.4815 ± 0.0182 0.271 ± 0.024

Au + Au (200 GeV) 0–10% 11.2/12 0.3562 ± 0.002431 7.440 ± 0.106
10–20% 9.7/12 0.3522 ± 0.002614 5.371 ± 0.108
20–30% 26.7/12 0.3731 ± 0.002413 3.435 ± 0.071
30–40% 21.1/12 0.3873 ± 0.002548 2.291 ± 0.045
40–50% 26.4/12 0.3671 ± 0.00307 1.342 ± 0.033
50–60% 70/12 0.3605 ± 0.003604 0.727 ± 0.023
60–70% 54.4/12 0.3516 ± 0.003911 0.380 ± 0.014
70–80% 31.7/12 0.3330 ± 0.004543 0.170 ± 0.009

Au + Au (62.4 GeV) 0–20% 8.4/9 0.328 ± 0.00624 3.523 ± 0.353
20–40% 8.4/9 0.324 ± 0.00353 1.590 ± 0.140
40–60% 14.5/9 0.308 ± 0.00644 0.584 ± 0.072
60–80% 13.3/9 0.2791 ± 0.01426 0.152 ± 0.022

Au + Au (39 GeV) 0–10% 10.36/10 0.3015 ± 0.0052 3.549 ± 0.070
10–20% 15.54/10 0.3019 ± 0.00522 2.347 ± 0.045
20–30% 3.946/9 0.3004 ± 0.005711 1.618 ± 0.030
30–40% 12.57/10 0.2826 ± 0.00398 1.067 ± 0.019
40–60% 20.62/10 0.267 ± 0.00362 0.498 ± 0.006
60–80% 21.08/10 0.2371 ± 0.00501 0.124 ± 0.002

Au + Au (27 GeV) 0–10% 26.13/10 0.29 ± 0.00245 3.46 ± 0.036
10–20% 32.3/10 0.2873 ± 0.00227 2.152 ± 0.023
20–30% 24.93/10 0.2766 ± 0.00236 1.471 ± 0.016
30–40% 13.57/100.2645 ± 0.00225 0.926 ± 0.010
40–60% 25.19/10 0.2601 ± 0.00217 0.422 ± 0.004
60–80% 71.08/10 0.2296 ± 0.00250 0.100 ± 0.001

Au + Au (19.6 GeV) 0–10% 28.87/9 0.2805 ± 0.003265 2.609 ± 0.038
10–20% 15.28/9 0.2788 ± 0.003722 1.817 ± 0.026
20–30% 13.63/9 0.2608 ± 0.003246 1.187 ± 0.017
30–40% 7.811/9 0.2652 ± 0.003917 0.763 ± 0.011
40–60% 17.78/9 0.2404 ± 0.003352 0.345 ± 0.004
60–80% 10.06/9 0.2142 ± 0.003558 0.072 ± 0.001

Pb + Pb (17.3 GeV) 0–4% 1.337/3 0.1748 ± 0.01043 0.0022 ± 0.0012

Au + Au (11.5 GeV) 0–10% 11.5/8 0.2621 ± 0.006674 1.754 ± 0.047
10–20% 9.638/80.265 ± 0.006731 1.281 ± 0.033
20–30% 6.885/8 0.2359 ± 0.006009 0.843 ± 0.022
30–40% 1.946/8 0.2453 ± 0.005765 0.506 ± 0.013
40–60% 2.862/8 0.2071 ± 0.00545 0.235 ± 0.005
60–80% 11.12/8 0.1947 ± 0.00888 0.051 ± 0.001

Au + Au (7.7 GeV) 0–10% 3.36/5 0.3082 ± 0.03087 1.207 ± 0.069
10–20% 10.46/5 0.2553 ± 0.01811 0.783 ± 0.036
20–30% 9.767/5 0.2207 ± 0.0141 0.471 ± 0.023
30–40% 4.177/5 0.2375 ± 0.01926 0.329 ± 0.017
40–60% 0.4763/5 0.2195 ± 0.01467 0.147 ± 0.007
60–80% 3.958/5 0.1992 ± 0.02282 0.035 ± 0.002