SMuK 2023 – wissenschaftliches Programm
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HK: Fachverband Physik der Hadronen und Kerne
HK 5: Heavy-Ion Collisions and QCD Phases I
HK 5.6: Vortrag
Montag, 20. März 2023, 17:45–18:00, SCH/A216
Collective flow measurements with HADES in Au+Au collisions at 1.23 AGeV — •Behruz Kardan for the HADES collaboration — Goethe-Universität, Frankfurt am Main
HADES provides a large acceptance combined with a high mass-resolution and therefore allows to study dielectron, hadron and light nuclei production in heavy-ion collisions with unprecedented precision. The high statistics measurements of flow coefficients for protons, deuterons and tritons in Au+Au collisions at 1.23 AGeV are presented here. In addition to the directed (v1) and elliptic (v2) flow components also the higher coefficients v3, v4, v5 and v6 are investigated for the first time in this energy regime. The multi-differential analysis in different centrality classes over a large region of phase space, i.e. as a function of transverse momentum pt and rapidity, will be shown and various scaling properties will be discussed. This provides the possibility to characterise the production process of light nuclei, i.e. via coalescence, and puts strong constraints on the determination of the properties of dense matter, such as its viscosity and equation-of-state (EOS).
Supported by the Helmholtz Forschungsakademie HFHF and HGS-HIRe.