On source parameters from particle correlations and spectra

Details On source parameters from particle correlations and spectra On source parameters from particle correlations and spectra

1998-10-13

arxiv.org/abs/hep-ph/9810341v1

Heavy Ion Phys.10:85-112,1999

Physics

High Energy Physics

High Energy Physics - Phenomenology

31 pages, Latex, including 2 tables, without figures

Scientific paper

Analytic and numeric approximations are studied in detail for a hydrodynamic parameterization of single-particle spectra and two-particle correlation functions in high energy hadron-proton and heavy ion reactions. Two very different sets of model parameters are shown to result in similarly shaped correlation functions and single particle spectra in a rather large region of the momentum space. However, the absolute normalization of the single-particle spectra is found to be highly sensitive to the choice of the model parameters. For data fitting the analytic formulas are re-phrased in terms of parameters of direct physical meaning, like mean transverse flow. The difference between the analytic and numeric approximations are determined as an analytic function of source parameters.

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