• Charged-particle multiplicity at mid-rapidity in Au-Au collisions at relativistic heavy-ion collider

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      https://www.ias.ac.in/article/fulltext/pram/060/05/0983-0986

    • Keywords

       

      PHENIX; relativistic heavy-ion collisions; ultra-relativistic heavy-ion collisions; multi-plicity

    • 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 √sNN = 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.

    • Author Affiliations

       

      D Silvermyr1

      1. Department of Physics, Lund University, Box 118, Lund - 22100, Sweden
    • Dates

       
  • Pramana – Journal of Physics | News

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