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 Article Swipe
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· 2016
· Open Access
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· DOI: https://doi.org/10.1103/physrevc.94.044917
· OA: W2493986552
We present a new event generator based on the three-fluid hydrodynamics\napproach for the early stage of the collision, followed by a particlization at\nthe hydrodynamic decoupling surface to join to a microscopic transport model,\nUrQMD, to account for hadronic final state interactions. We present first\nresults for nuclear collisions of the FAIR/NICA energy scan program (Au+Au\ncollisions, $\\sqrt{s_{NN}}=4-11$ GeV). We address the directed flow of protons\nand pions as well as the proton rapidity distribution for two model EoS, one\nwith a first order phase transition the other with a crossover type softening\nat high densities. The new simulation program has the unique feature that it\ncan describe a hadron-to-quark matter transition which proceeds in the baryon\nstopping regime that is not accessible to previous simulation programs designed\nfor higher energies.\n
