Saturation of transverse energy per charged hadron and freeze-out criteria in heavy-ion collisions
UCT-CERN Research Centre and Department of Physics, University of Cape Town, Rondebosch, 7701, South Africa
2 Institute of Physics, Sachivalaya Marg, Bhubaneswar, 751005, India
3 Variable Energy Cyclotron Centre, 1/AF Bidhan Nagar, Kolkata, 700064, India
Corresponding author: Jean.Cleymans@uct.ac.za
For beam energies from SPS to RHIC, the transverse energy per charged particle, ET/Nch, saturates at a value of approximately 0.8 GeV. A direct connection between this value and the freeze-out criterium E/N ≈1 GeV for the primordial energy and particle number in the hadronic resonance gas model is established.
© EDP Sciences, Springer-Verlag, 2008