Charmonium Production with Statistical Hadronization at the RHIC

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Abstract

We present the results of charmonium production at Relativistic Heavy Ion Collider (RHIC) energies by using a hybrid model that directly creates cc̄ pairs in early-stage hard scatterings and hadronizes open and hidden charm particles according to the statistical law at chemical freeze-out of the deconfined quark-gluon plasma. The effect of possible normal nuclear absorption due to the dissociation of charmonia in the expanding hadronic fireball is also investigated. We find that about two-thirds of the total J/ψ′s can be dissociated in the most central Au + Au collisions because of this absorption. The resultant J/ψ yields are compared with the upper limits and most likely values recently published by the PHENIX collaboration.

Original languageEnglish
Pages (from-to)1009-1014
Number of pages6
JournalJournal of the Korean Physical Society
Volume43
Issue number6
Publication statusPublished - 2003 Dec

Keywords

  • Charmonium production
  • Heavy-ion collisions
  • RHIC
  • Statistical hadronization
  • Thermal model

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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