EPJ Web Conf.
Volume 182, 20186th International Conference on New Frontiers in Physics (ICNFP 2017)
|Number of page(s)||12|
|Published online||03 August 2018|
Three-fluid Hydrodynamics-based Event Simulator Extended by UrQMD final State interactions (THESEUS) for FAIR-NICA-SPSBES/RHIC energies
Veksler and Baldin Laboratory of High Energy Physics, JINR Dubna, 141980 Dubna, Russia
2 Institute of Theoretical Physics, University of Wroclaw, 50-204 Wroclaw, Poland
3 Bogoliubov Laboratory of Theoretical Physics, JINR Dubna, 141980 Dubna, Russia
4 National Research Nuclear University “MEPhI”, 115409 Moscow, Russia
5 Frankfurt Institute for Advanced Studies (FIAS), Frankfurt am Main, Germany
6 Institut für Theoretische Physik, Goethe Universität, Frankfurt am Main, Germany
7 GSI Helmholtzzentrum für Schwerionenforschung GmbH, Darmstadt, Germany
8 National Research Centre “Kurchatov Institute” 123182 Moscow, Russia
9 Bogolyubov Institute for Theoretical Physics, 03680 Kiev, Ukraine
10 INFN - Sezione di Firenze, I-50019 Sesto Fiorentino (Firenze), Italy
11 Skobeltsyn Institute for Nuclear Physics, Lomonosov Moscow State University, Moscow, Russia
12 SUBATECH, UMR 6457 (IMT-Atlantique, Université de Nantes, CNRS-IN2P3), 44307 Nantes, France Nantes cedex 3, France
a e-mail: Y.Ivanov@gsi.de
Published online: 3 August 2018
We present a new event generator based on the three-fluid hydrodynamics (3FH) approach, followed by a particlization at the hydrodynamic decoupling surface and a subsequent UrQMD afterburner stage based on the microscopic UrQMD transport model that accounts for hadronic final state interactions. First results for Au+Au collisions are presented. The following topics are addressed: the directed flow, transversemass spectra, as well as rapidity distributions of protons, pions and kaons for two model equations of state, one with a first-order phase transition, the other with a crossover transition. Preliminary results on the femtoscopy are also discussed.We analyze the accuracy of reproduction of the 3FH results by the new event generator and the effect of the subsequent UrQMD afterburner stage.
© The Authors, published by EDP Sciences 2018
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