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HK: Fachverband Physik der Hadronen und Kerne
HK 17: Heavy-Ion Collisions and QCD Phases III
HK 17.4: Vortrag
Mittwoch, 1. September 2021, 17:30–17:45, H1
Comparison of light (hyper-)nuclei from PHQMD simulations with experimental data from heavy-ion collisions — •Susanne Gläßel1, Christoph Blume1, 2, Elena Bratkovskaya1, 2, and Gabriele Coci2 — 1Goethe University Frankfurt — 2GSI Darmstadt
Simulations of light nuclei production in heavy-ion collisions up to date have been limited to the modeling of a sudden transition from a dynamical transport model to clusterization (via coalescence or statistical model). However, a better understanding of the cluster formation and of how such weakly bound objects are formed and survive in the dense and hot environment created in heavy-ion collisions cannot be established that way. The newly developed Parton-Hadron-Quantum-Molecular-Dynamics (PHQMD) approach allows a dynamical cluster formation continuously during the time evolution of the collision. The microscopic n-body transport model describes the interactions between baryons on the basis of Quantum Molecular Dynamics (QMD) which allows to propagate n-body correlations in phase-space, essential for the cluster formation. The clusters are recognized by the Minimum Spanning Tree (MST) algorithm. Collisions among hadrons, the Quark-Gluon-Plasma formation and parton dynamics are adopted from the Parton-Hadron-String-Dynamics (PHSD) transport approach. A comparison of light nuclei and hypernuclei simulated with PHQMD and experimental data from AGS to RHIC energies will be presented, also providing valuable predictions for the upcoming CBM and NICA experiments. DFG-grant BL 982/3-1, DFG-grant BR 4000/7-1.