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 5.5: Vortrag
Montag, 20. März 2023, 17:30–17:45, SCH/A216
Collective flow at SIS energies within a hadronic transport approach: Influence of light nuclei formation and equation of state — •Justin Mohs2,3 and Hannah Elfner1,2,3 — 1Gesellschaft für Schwerionenforschung — 2Goethe-Universität Fankfurt — 3Frankfurt Institute for Advanced Studies
Collective flow observables are known to be a sensitive tool to gain insights on the equation of state of nuclear matter from heavy-ion collision observations. Towards more quantitative constraints one has to carefully assess other influences on the collective behaviour. Since the formation of light nuclei is important in low-energy heavy-ion collisions, two different approaches to take the formation of light nuclei into account are contrasted to each other within the hadronic transport approach SMASH: A clustering algorithm inspired by coalescence and microscopic formation of deuterons via explicit cross-sections. The sensitivity of directed and elliptic flow observables in Au+Au collisions at Elab=1.23A GeV to the strength of the Skyrme mean field is explored and we find that a stiff equation of state describes the measurement best if no momentum dependence is included in the nuclear potentials. This study establishes the current understanding of collective behaviour within the SMASH approach and lays the ground for future more quantitative constraints on the equation of state of nuclear matter within improved mean field calculations.