Phase Evolution and Freeze-out within Alternative Scenarios of Relativistic Heavy-Ion Collisions

Abstract

Global evolution of the matter in relativistic collisions of heavy nuclei and the resulting global freeze-out parameters are analyzed in a wide range of incident energies 2.7 GeV $\le \sqrt{s_{NN}}\le$ 39 GeV. The analysis is performed within the three-fluid model employing three different equations of state (EoS): a purely hadronic EoS, an EoS with the first-order phase transition and that with a smooth crossover transition. Global freeze-out parameters deduced from experimental data within the statistical model are well reproduced within the crossover scenario. The 1st-order-transition scenario is slightly less successful. The worst reproduction is found within the purely hadronic scenario. These findings make a link between the EoS and results of the statistical model, and indicate that deconfinement onset occurs at $\sqrt{s_{NN}}\gsim$ 5 GeV.

7 pages, 5 figures, version published in Phys. Lett. B

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Cited by in corpus (6)

• Directed Flow Indicates a Crossover Deconfinement Transition in Relativistic Nuclear Collisions
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• Alternative Scenarios of Relativistic Heavy-Ion Collisions: III. Transverse Momentum Spectra
• Elliptic Flow in Heavy-Ion Collisions at Energies $\sqrt{s_{NN}}=$ 2.7--39 GeV
• What can we learn from the directed flow in heavy-ion collisions at BES RHIC energies?
• Directed flow in heavy-ion collisions and its implications for astrophysics