Description of the particle ratios and transverse-momentum spectra for various centralities at RHIC in a single-freeze-out model

Details Description of the particle ratios and transverse-momentum spectra for various centralities at RHIC in a single-freeze-out model Description of the particle ratios and transverse-momentum spectra for various centralities at RHIC in a single-freeze-out model

2003-05-26

arxiv.org/abs/nucl-th/0305075v2

Acta Phys.Polon.B35:779-798,2004

Physics

Nuclear Physics

Nuclear Theory

results for the Omega baryons added

Scientific paper

The single-freeze-out model of hadron production is used to describe the particle ratios and the transverse-momentum spectra from RHIC. The emphasis is put on the new measurements done at the highest beam energy of 200 GeV. An overall very good agreement is found between the data and the model predictions. The data for different centrality windows are analyzed separately. A simple scaling of the two expansion parameters of the model with the centrality is found. Interestingly, this scaling turns out to be equivalent to the scaling of hadron production with the number of wounded nucleons.

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