Event simulation based on three-fluid hydrodynamics for collisions at energies available at the Dubna Nuclotron-based Ion Collider Facility and at the Facility for Antiproton and Ion Research in Darmstadt

P. Batyuk D. Blaschke M. Bleicher Yu. B. Ivanov Iu. Karpenko S. Merts Marlene Nahrgang 1 H. Petersen O. Rogachevsky
1 SUBATECH - Laboratoire SUBATECH Nantes
Abstract : We present a new event generator based on the three-fluid hydrodynamics approach for the early stage of the collision, followed by a particlization at the hydrodynamic decoupling surface to join to a microscopic transport model, UrQMD, to account for hadronic final state interactions. We present first results for nuclear collisions of the FAIR/NICA energy scan program (Au+Au collisions, $\sqrt{s_{NN}}=4-11$ GeV). We address the directed flow of protons and pions as well as the proton rapidity distribution for two model EoS, one with a first order phase transition the other with a crossover type softening at high densities. The new simulation program has the unique feature that it can describe a hadron-to-quark matter transition which proceeds in the baryon stopping regime that is not accessible to previous simulation programs designed for higher energies.
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Submitted on : Thursday, February 16, 2017 - 9:00:57 AM
Last modification on : Wednesday, January 15, 2020 - 1:30:02 PM

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P. Batyuk, D. Blaschke, M. Bleicher, Yu. B. Ivanov, Iu. Karpenko, et al.. Event simulation based on three-fluid hydrodynamics for collisions at energies available at the Dubna Nuclotron-based Ion Collider Facility and at the Facility for Antiproton and Ion Research in Darmstadt. Physical Review C, American Physical Society, 2016, 94 (4), pp.044917. ⟨10.1103/PhysRevC.94.044917⟩. ⟨in2p3-01468959⟩

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