Review Article

Electromagnetic Radiations from Heavy Ion Collision

Table 1

The values of various parameters—thermalization time ( ), initial temperature ( ), and hadronic multiplicity (the value of for various beam energies and centralities is calculated from (26))—used in the present calculations.

Centrality (fm) (MeV)

17.3 GeV 0–06%7001.0200
200 GeV0–20%4960.6227
20–40%2260.6203
min. bias1840.6200
2.76 TeV 0–40% 12120.1553