Review Article

Freeze-Out Parameters in Heavy-Ion Collisions at AGS, SPS, RHIC, and LHC Energies

Table 7

Blast wave fit parameters for central collisions (0–5%, except for = 4.8 GeV which is 0–10%) at different energies.

  (GeV)Coll. Species/Exp. (MeV) /NDF Particle spectra fit ranges (GeV/c) and rapidity () Reference

4.8 Au + Au
E866
127 ± 15.0 0.390 ± 0.050 , , , GeV/c2: [70]
= 0.4–1.5 ( = 0.1)
= 0.05–0.9 ( = 0.1)
= 0.05–1.2 ( = 0.1)

7.7 Au + Au
STAR
116 ± 10.0 0.462 ± 0.029 0.468 ± 0.247 52/99 , , , = 0.5–1.3 ( < 0.1), [53]
= 0.25–1.4 ( < 0.1),
= 0.4–1.3 ( < 0.1)

11.5 Au + Au
STAR
118 ± 11.0 0.464 ± 0.023 0.480 ± 0.247 26/101 , , , = 0.5–1.3 ( < 0.1), [53]
= 0.25–1.4 ( < 0.1),
= 0.4–1.3 ( < 0.1)

17.3 Pb + Pb
NA49
108 ± 6.0 0.501 ± 0.035 0.538 ± 0.157 70/50 , , , = 0.5–0.9 (0 < < 0.2), [42, 71]
= 0.2–1.35 ( < 0.1),
= 0.3–1.35
(−0.51 < < −0.11)

19.6 Au + Au
STAR
113 ± 11.0 0.458 ± 0.022 0.987 ± 0.125 19/103 , , , = 0.5–1.3 ( < 0.1), [53]
= 0.25–1.4 ( < 0.1),
= 0.4–1.3 ( < 0.1)

27.0 Au + Au
STAR
117 ± 11.0 0.482 ± 0.024 0.598 ± 0.191 32/96 , , , = 0.5–1.3 ( < 0.1), [53]
= 0.25–1.4 ( < 0.1),
= 0.4–1.3 ( < 0.1)

39.0 Au + Au
STAR
117 ± 11.0 0.492 ± 0.029 0.686 ± 0.165 17/97 , , , = 0.5–1.3 ( < 0.1), [53]
= 0.25–1.4 ( < 0.1),
= 0.4–1.3 ( < 0.1)

62.4 Au + Au
STAR
100 ± 10.2 0.553 ± 0.018 0.594 ± 0.047 45/59 , , , = 0.5–0.7 ( < 0.1), [55]
= 0.25–0.75 ( < 0.1),
= 0.4(0.35)–1.13
( < 0.1)

130 Au + Au
STAR
97 ± 8.0 0.567 ± 0.020 0.704 ± 0.032 34/60 , , , = 0.5–0.7 ( < 0.1), [55]
= 0.2–0.8 ( < 0.1),
= 0.35–1.0 ( < 0.1)

200 Au + Au
STAR
89 ± 12.0 0.593 ± 0.021 0.813 ± 0.024 11/63 , , , = 0.5–0.75 ( < 0.1), [55]
= 0.2–0.7 ( < 0.1),
= 0.4(0.35)–1.2 ( < 0.1)

2760 Pb + Pb
ALICE
90 ± 10.0 0.654 ± 0.020 0.735 ± 0.086 13/82 , , , = 0.5–0.8 ( < 0.5), [72]
= 0.2–1.0 ( < 0.5),
= 0.3–1.5 ( < 0.5)