Identified Particle Distributions in p p and Au + Au Collisions at s N N = 200 GeV
Physical Review Letters(2004)
摘要
Transverse mass and rapidity distributions for charged pions, charged kaons, protons, and antiprotons are reported for $\\sqrt{{s}_{NN}}=200\\text{ }\\text{ }\\mathrm{GeV}$ $pp$ and $\\mathrm{Au}+\\mathrm{Au}$ collisions at Relativistic Heary Ion Collider (RHIC). Chemical and kinetic equilibrium model fits to our data reveal strong radial flow and long duration from chemical to kinetic freeze-out in central $\\mathrm{Au}+\\mathrm{Au}$ collisions. The chemical freeze-out temperature appears to be independent of initial conditions at RHIC energies.
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