2013/11/01 by Iu. Karpenko, Iu A Karpenko, M Bleicher +5 · 1 citation
Physics and Astronomy · #Baryon #Cascade #Collision #Elliptic flow #Equation of state #Hadron #High-Energy Particle Collisions Research #Large Hadron Collider #Particle physics theoretical and experimental studies #Pion #Quantum Chromodynamics and Particle Interactions #Rapidity #Viscosity #hep-ph #nucl-th
paper · pdf · doi:10.1088/1742-6596/503/1/012040
published as J. Phys.: Conf. Ser. 503 (2014) 012040 · 5 pages, 4 figures. Talk given at FAIRNESS 2013 workshop, September 15-21 2013, Berlin, Germany. arXiv admin note: substantial text overlap with arXiv:1310.0702
arxiv created 2013/11/01 · openalex publication_date 2014/04/16 · arxiv updated 2014/09/08 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We apply a 3+1D viscous hydrodynamic + cascade model to heavy ion collision reactions with = 6.3 ... 39 GeV. To accommodate the model for a given collision energy range, the initial conditions for the hydrodynamic phase are taken from UrQMD, and the equation of state at finite baryon density is based on a Chiral model coupled to the Polyakov loop. We study the collision energy dependence of pion and kaon rapidity distributions and m T -spectra, as well as charged hadron elliptic flow and how shear viscosity affects them. The model calculations are compared to the data for Pb-Pb collisions at CERN SPS, as well as for Au-Au collisions in the Beam Energy Scan (BES) program energies at BNL RHIC. The data favours the value of shear viscosity η/ s ≳ 0.2 for this collision energy range.