Transverse spectra of hadrons at RHIC

Abstract

We present results on spectra of pions, kaons and (anti)protons from a study of heavy ion collisions using the perturbative QCD + saturation model to calculate the production of initial (transverse) energy and baryon number followed by a hydrodynamic description of the expansion of produced matter. In particular, we study how the hadron spectra and multiplicities depend on the decoupling temperature $\Tdec$ when the low temperature phase contains all hadrons and and hadron resonances with mass below 2 GeV. We show that the spectra and multiplicities of pions, kaons and (anti)protons measured at RHIC in central Au+Au collisions with $\sqrt{s}=130$ GeV can be obtained with a single decoupling temperature 150$...$160 MeV, common for both the chemical and the kinetic freeze-out.

arXiv comment4 pages, 2 eps-figures, talk at Quark Matter '02, Nantes, France, July 2002

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Cited by in corpus (9)

• The Fragility of High-pT Hadron Spectra as a Hard Probe
• Color Glass Condensate at the LHC: hadron multiplicities in $pp$, $pA$ and $AA$ collisions
• RHIC-tested predictions for low-$p_T$ and high-$p_T$ hadron spectra in nearly central Pb+Pb collisions at the LHC
• Searching Evidence for the Color Glass Condensate at RHIC
• Triple-quark elastic scatterings and thermalization
• CGC, QCD Saturation and RHIC data (Kharzeev-Levin-McLerran-Nardi point of view)
• qqqbar to qqqbar and qqbarqbar to qqbarqbar Elastic Scatterings and Thermalization of Quark Matter and Antiquark Matter
• Phase-Space Description of Momentum Spectra in Relativistic Heavy-Ion Collisions
• Baryonic Effect on chi_cJ Suppression in Au+Au Collisions at RHIC Energies