Abstract
The particle density at mid-rapidity is an essential global variable for the characterization of nuclear collisions at ultra-relativistic energies. It provides information about the initial conditions and energy density reached in these collisions. The pseudorapidity densities of charged particles at mid-rapidity in AuAu collisions at √s NN = 130 and 200 GeV at RHIC (relativistic heavy ion collider) have been measured with the PHENIX detector. The measurements were performed using sets of wire-chambers with pad readout in the two central PHENIX tracking arms. Each arm covers one quarter of the azimuth in the pseudorapidity interval |η| < 035. Data is presented and compared with results from proton-proton collisions and nucleus-nucleus collisions at lower energies. Extrapolations to LHC energies are discussed.
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Silvermyr, D., PHENIX Collaboration. Charged-particle multiplicity at mid-rapidity in Au-Au collisions at relativistic heavy-ion collider. Pramana - J Phys 60, 983–986 (2003). https://doi.org/10.1007/BF02707016
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DOI: https://doi.org/10.1007/BF02707016