Transverse mass and rapidity distributions for charged pions, charged kaons, protons, and antiprotons are reported for √sNN=200  GeV pp and Au+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 Au+Au collisions. The chemical freeze-out temperature appears to be independent of initial conditions at RHIC energies.



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NOTE: At the time of publication, the author Thomas Gutierrez was not yet affiliated with Cal Poly.

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