May 17 – 22, 2021
US/Eastern timezone

Dynamical cluster and hypernuclei production in heavy-ion collisions

May 21, 2021, 10:10 AM
Room B (Zoom)

Room B


zoom co-host: Klaus Dehmelt


Elena Bratkovskaya (GSI, Darmstadt)


We study the cluster and hypernuclei production in heavy-ion collisions from SIS to RHIC energies based on the n-body dynamical transport approach PHQMD (Parton-Hadron-Quantum-Molecular-Dynamics). In PHQMD clusters are formed dynamically due to the interactions between baryons described on a basis of Quantum Molecular Dynamics (QMD) which allows to propagate the n-body Wigner density and n-body correlations in phase-space, essential for the cluster formation. The clusters are identified by the MST (Minimum Spanning Tree) or the SACA (‘Simulated Annealing Cluster Algorithm’) algorithm which finds the most bound configuration of nucleons and clusters. Collisions among hadrons as well as Quark-Gluon-Plasma formation and parton dynamics in PHQMD are treated in the same way as in the established PHSD (Parton-Hadron-String-Dynamics) transport approach. We study the time evolution of the cluster creation in the
expanding medium and the stability of the clusters. We present the comparison of the PHQMD results for $d, t, He^3$ and heavy clusters as well as for the hypernuclei with experimental data.

Primary authors

Elena Bratkovskaya (GSI, Darmstadt) Susanne Glaessel (Goethe Universtitaet Frankfurt) Viktar Kireyeu (Joint Institute for Nuclear Research (RU)) Joerg Aichelin (Subatech/CNRS) Vadim Voronyuk (JINR, Dubna) Christoph Blume (Goethe University Frankfurt (DE)) Gabriele Coci (GSI - Hemohilzzentrum für Schwerionenforschung GmbH) Vadim Kolesnikov (Joint Institute for Nuclear Research (RU))

Presentation materials