Influence of hydrodynamics on the interpretation of the high \(p_{T}\) hadron suppression at RHIC

A hybrid parameterization including contributions of hydrodynamics and of expectations from the spectral shape observed in p+p collisions is introduced. This parameterization can successfully describe identified hadron spectra over a wide range of \(p_{T}\) in Au+Au reactions at \(\sqrt{s_{NN}}\) =...

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Bibliographic Details
Published in:arXiv.org 2003-07
Main Author: Peitzmann, T
Format: Article
Language:English
Subjects:
Fluid dynamics
Fluid flow
Fluid mechanics
Hydrodynamics
Parameterization
Spectra
Online Access:Get full text
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Summary:A hybrid parameterization including contributions of hydrodynamics and of expectations from the spectral shape observed in p+p collisions is introduced. This parameterization can successfully describe identified hadron spectra over a wide range of \(p_{T}\) in Au+Au reactions at \(\sqrt{s_{NN}}\) = 200 GeV for all centralities. The parameters of the hydrodynamic source compare reasonably well to other attempts to describe the spectra. The description is obtained using one universal suppression factor of the hard scattering component independent of \(p_{T}\) and hadron species. For the fit results obtained the observed nuclear modification factor for the different particles converges to a universal suppression behavior for \(p_{T} > 6 \mathrm{GeV}/c\).
ISSN:2331-8422
DOI:10.48550/arxiv.0303046