Münster 2017 – wissenschaftliches Programm
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HK: Fachverband Physik der Hadronen und Kerne
HK 29: Heavy Ion Collisions and QCD Phases VI
HK 29.5: Vortrag
Mittwoch, 29. März 2017, 18:00–18:15, F 1
Collective flow in heavy-ion collisions at Elab = 1−2A GeV — •Markus Mayer1,2, LongGang Pang1, and Hannah Petersen1,2,3 — 1Frankfurt Institute for Advanced Studies — 2Goethe Universität Frankfurt — 3GSI Helmholtzzentrum für Schwerionenforschung
In this talk the elliptic flow v2 and the triangular flow v3 of nucleons and pions at beam energies of 1−2A GeV are investigated within the hadronic transport approach SMASH (Simulating Many Accelerated Strongly-interacting Hadrons). Collective flow is a good observable to gain information about the transport properties of the fireball matter. The anisotropic flow is characterized by the anisotropies in the pressure gradients and thus depends on the shape of the initial density profile. The largest contribution to this anisotropic flow comes from the elliptic flow v2. Since the distribution of the fireball matter is inhomogeneous, there are also higher anisotropic coefficients, for example the triangular flow v3. The elliptic flow v2 is compared to HADES and FOPI data while predictions for v3 are performed. Especially the effects of potentials and Fermi motion on these flow coefficients are investigated.