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Dynamical cluster and hypernuclei production in heavy-ion collisions

Authors :
Susanne Gläßel
Viktar Kireyeu
Vadim Voronyuk
Jörg Aichelin
Christoph Blume
Elena Bratkovskaya
Gabriele Coci
Vadim Kolesnikov
Michael Winn
Source :
The European physical journal / Web of Conferences 259, 11003 (2022). doi:10.1051/epjconf/202225911003, 19th International Conference on Strangeness in Quark Matter, SQM2021, Online, United States, 2021-05-17-2021-05-22, EPJ Web of Conferences, Vol 259, p 11003 (2022)
Publication Year :
2022
Publisher :
EDP Sciences, 2022.

Abstract

We study light 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 the basis of Quantum Molecular Dynamics (QMD) which allows to propagate the n-body Wigner density and n-body correlations in phase-space, which is 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 PHSD (Parton-Hadron-String-Dynamics) transport approach. We study the time evolution of the cluster formation in the expanding medium and the stability of the clusters. We present a comparison of the PHQMD results for d, 3He as well as for the hypernuclei with experimental data.

Details

ISSN :
2100014X
Volume :
259
Database :
OpenAIRE
Journal :
EPJ Web of Conferences
Accession number :
edsair.doi.dedup.....2c021bc6118529af648fea4b1ef67b32
Full Text :
https://doi.org/10.1051/epjconf/202225911003