Bulk medium properties of heavy-ion collisions from the beam energy scan with a multistage hydrodynamic model

Abstract

We introduce a method to reconstruct full rapidity distributions of charged particle multiplicity and net proton yields, crucial for constraining the longitudinal dynamics of nuclear matter created in the beam energy scan program. Employing rapidity distributions within a multistage hydrodynamic model calibrated for Au+Au collisions at $\sqrt{s_{\mathrm{NN}}}=7.7-200$GeV, we estimate the total energy and baryon number deposited into the collision fireball, offering insights into initial dynamics and the identification of nuclear remnants. We explore the potential of rapidity-dependent measurements in probing equations of state at finite chemical potentials. Furthermore, we compare the freeze-out parameters derived from both hydrodynamics and thermal models, highlighting that the parameters extracted via thermal models represent averaged properties across rapidities.

v1: 15 pages, 12 figures; v2: figs. 2 and 4 slightly adjusted; v3: Title slightly changed. A few short discussions were added, but there are no changes to the results or conclusions. Published in PRC

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Cited by in corpus (4)

• Multimessenger study of baryon-charged QCD matter in heavy-ion collisions
• Efficient calculation of thermodynamic properties of baryon-rich QCD matter from heavy-ion transport models
• Kinematic and dynamical origins of mean-$p_T$ fluctuations in heavy-ion collisions
• A Method to Constrain Preferential Emission and Spectator Dynamics in Heavy-Ion Collisions