Centrality dependence of multiplicity, transverse energy, and elliptic flow from hydrodynamics

The centrality dependence of the charged multiplicity, transverse energy, and elliptic flow coefficient is studied in a hydrodynamic model, using a variety of different initializations which model the initial energy or entropy production process as a hard or soft process, respectively. While the cha...

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Published inNuclear physics. A Vol. 696; no. 1; pp. 197 - 215
Main Authors Kolb, P.F., Heinz, U., Huovinen, P., Eskola, K.J., Tuominen, K.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 17.12.2001
Subjects
Elliptic flow
Hydrodynamic model
Relativistic heavy-ion collisions
Hydrodynamic model
Elliptic flow
Relativistic heavy-ion collisions
25.75.Ld
25.75-q
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Summary:The centrality dependence of the charged multiplicity, transverse energy, and elliptic flow coefficient is studied in a hydrodynamic model, using a variety of different initializations which model the initial energy or entropy production process as a hard or soft process, respectively. While the charged multiplicity depends strongly on the chosen initialization, the p T-integrated elliptic flow for charged particles as a function of charged particle multiplicity and the p T-differential elliptic flow for charged particles in minimum bias events turn out to be almost independent of the initial energy density profile.
ISSN:0375-9474
DOI:10.1016/S0375-9474(01)01114-9