FLOW STUDIES IN NUCLEUS-NUCLEUS COLLISIONS AT FAIR-GSI AVAILABLE ENERGIES

In this work, the elliptic flow coefficients for charged pions, kaons and protons as a function of transverse momentum pT, at midrapidity (-0.5 < y < 0.5), in Au-Au collisions at three colliding energies (root sNN = 3, 5 and 7.7 GeV) simulated with UrQMD and AMPT-SM (AMPT with string melting version) codes are presented. The scaling of v(2) with the number of valence quarks (n(q)) has been studied as a function of transverse kinetic energy per quark, KET/n(q). A deviation from quark-number scaling is observed at larger values of KET/n(q) in non-central Au-Au collisions for both simulation codes. The 7.7 GeV Au-Au simulated results were compared with STAR experimental data.