A Review on ϕ Meson Production in Heavy-Ion Collision

Figure 2

The invariant yield of mesons as a function of measured for different system and different centralities at various centre-of-mass energies [16–21]. The black dashed (blue solid) line represents an exponential (Levy) function fit to the data.

(a) p + p INEL

(b) p + p (NSD) 200 GeV

(c) d + Au 200 GeV

(d) Pb + Pb 17.3 GeV

(e) Au + Au 7.7 Gev

(f) Au + Au 11.5 GeV

(g) Au + Au 19.6 GeV

(h) Au + Au 27 GeV

(i) Au + Au 39 GeV

(j) Au + Au 62.4 GeV

(k) Au + Au 200 GeV

(l) Pb + Pb 2.76 TeV