Hadron freeze-out conditions in high energy nuclear collisions
arXiv:nucl-ex/0104021 · doi:10.1016/S0375-9474(01)01377-X
Abstract
Systematic trend of the hadron freeze-out conditions from AGS/SPS to RHIC is discussed. The most interesting results from collisions at RHIC are that the system is indeed approaching net-baryon free and the transverse expansion is much stronger than that from collisions at AGS/SPS energies. In order to understand the trend of the collective velocity, an energy scan between $\sqrt{s_{NN}} = 20 - 200 GeV, is important. In addition, systematic studies on the anisotropy parameter $v_2$ and the transverse momentum distributions of $Ï, Ω,$ and $J / Ï$ are necessary as they will help in determining whether the collectivity is developed at the partonic stage.
Talk presented at the Quark Matter 2001 conference, 8 pages, 8 figures. To appear in Nucl. Phys. A