Identified Particle Distributions in pp and Au + Au Collisions at √SNN= 200 GeV

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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.

Original languageEnglish
Article number112301
Pages (from-to)112301-1-112301-6
JournalPhysical Review Letters
Issue number11
StatePublished - Mar 19 2004

Bibliographical note

Funding Information:
We thank the RHIC Operations Group and RCF at BNL, and the NERSC Center at LBNL for their support. This work was supported in part by the HENP Divisions of the Office of Science of the U.S. DOE; the U.S. NSF; the BMBF of Germany; IN2P3, RA, RPL, and EMN ?>of France; EPSRC of the United Kingdom; FAPESP of Brazil; the Russian Ministry of Science and Technology; the Ministry of Education and the NNSFC of China; Grant Agency of the Czech Republic, DAE, DST, and CSIR of the Government of India; the Swiss NSF.

Publisher Copyright:
© 2004 The American Physical Society.

ASJC Scopus subject areas

  • Physics and Astronomy (all)


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