Parton Hadron Quantum Molecular Dynamics (PHQMD) -- a Novel Microscopic N-Body Transport Approach for Heavy-Ion Dynamics and Hypernuclei Production

E. Bratkovskaya; J. Aichelin; A. Le Fevre; V. Kireyeu; V. Kolesnikov; Y. Leifels; and V. Voronyuk

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arXiv · 1911.11892

Parton Hadron Quantum Molecular Dynamics (PHQMD) -- a Novel Microscopic N-Body Transport Approach for Heavy-Ion Dynamics and Hypernuclei Production

E. Bratkovskaya·J. Aichelin·A. Le Fevre·V. Kireyeu·V. Kolesnikov·Y. Leifels·and V. Voronyuk

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Abstract

We present the novel microscopic n-body dynamical transport approach PHQMD(Parton-Hadron-Quantum-Molecular-Dynamics) for the description of particle production and cluster formation in heavy-ion reactions at relativistic energies. The PHQMD extends the established PHSD (Parton-Hadron-String-Dynamics) transport approach by replacing the mean field by density dependent two body interactions in a similar way as in the Quantum Molecular Dynamics (QMD) models. This allows for the calculation of the time evolution of the n-body Wigner density and therefore for a dynamical description of clusters and hypernuclei formation. The clusters are identified with the MST ('Minimum Spanning Tree') or the SACA ('Simulated Annealing Cluster Algorithm') algorithm which - by regrouping the nucleons in single nucleons and noninteracting clusters - finds the most bound configuration of nucleons and clusters. The selected results on clusters and hypernuclei production from Ref. arXiv:1907.03860 are discussed in this contribution.

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E. Bratkovskaya, J. Aichelin, A. Le Fevre, V. Kireyeu, V. Kolesnikov, Y. Leifels, and V. Voronyuk. 2019-11-27. Parton Hadron Quantum Molecular Dynamics (PHQMD) -- a Novel Microscopic N-Body Transport Approach for Heavy-Ion Dynamics and Hypernuclei Production. https://arxiv.org/abs/1911.11892

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