Entropy development in ideal relativistic fluid dynamics with the Bag Model equation of state

We consider an idealized situation where the Quark–Gluon Plasma (QGP) is described by a perfect, (3+1) -dimensional fluid dynamic model starting from an initial state and expanding until a final state where freeze-out and/or hadronization takes place. We study the entropy production with attention to effects of (i) numerical viscosity, (ii) late stages of flow where the Bag Constant and the partonic pressure are becoming similar, (iii) and the consequences of final freeze-out and constituent quark matter formation.

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4 pages, 4 figures

Quark deconfinement
Quark-gluon plasma production
Phase transitions
Relativistic heavy-ion collisions
Hydrodynamic models
Quark–gluon plasma production
fluid: relativistic
entropy: production
quark gluon: plasma
quark: constituent

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