Probing of EoS with clusters and hypernuclei
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| Autores principales: | , , , , , , , , , , , , , , |
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| Formato: | Preprint |
| Publicado: |
2025
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| author | Zhou, Yingjie Glässel, Susanne Leung, Yue-Hang Kireyeu, Viktar Zhao, Jiaxing Liu, Hui Blume, Christoph Vassiliev, Iouri Voronyuk, Vadim Winn, Michael Herrmann, Norbert Wang, Yaping Xu, Nu Aichelin, Jörg Bratkovskaya, Elena |
| author_facet | Zhou, Yingjie Glässel, Susanne Leung, Yue-Hang Kireyeu, Viktar Zhao, Jiaxing Liu, Hui Blume, Christoph Vassiliev, Iouri Voronyuk, Vadim Winn, Michael Herrmann, Norbert Wang, Yaping Xu, Nu Aichelin, Jörg Bratkovskaya, Elena |
| contents | The study of the nuclear equation-of-state (EoS) is a one of the primary goals of experimental and theoretical heavy-ion physics. The comparison of recent high statistics data from the STAR Collaboration with transport models provides a unique possibility to address this topic in a yet unexplored energy domain. Employing the microscopic N-body Parton-Hadron-Quantum-Molecular Dynamics (PHQMD) transport approach, which allows to describe the propagation and interactions of hadronic and partonic degrees of freedom including cluster and hyper-nucleus formation and dynamics, we investigate the influence of different EoS on bulk observables, the multiplicity, $p_T$ and rapidity distributions of protons, $Λ$s and clusters up to A=4 as well as their influence on the collective flow. We explore three different EoS: two static EoS, dubbed 'soft' and 'hard', which differ in the compressibility modulus, as well as a soft momentum dependent EoS. We find that a soft momentum dependent EoS reproduces most baryon and cluster observables, including the flow observables, quantitatively, however, hard EOS show a similar trend. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2507_14255 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Probing of EoS with clusters and hypernuclei Zhou, Yingjie Glässel, Susanne Leung, Yue-Hang Kireyeu, Viktar Zhao, Jiaxing Liu, Hui Blume, Christoph Vassiliev, Iouri Voronyuk, Vadim Winn, Michael Herrmann, Norbert Wang, Yaping Xu, Nu Aichelin, Jörg Bratkovskaya, Elena Nuclear Theory High Energy Physics - Phenomenology The study of the nuclear equation-of-state (EoS) is a one of the primary goals of experimental and theoretical heavy-ion physics. The comparison of recent high statistics data from the STAR Collaboration with transport models provides a unique possibility to address this topic in a yet unexplored energy domain. Employing the microscopic N-body Parton-Hadron-Quantum-Molecular Dynamics (PHQMD) transport approach, which allows to describe the propagation and interactions of hadronic and partonic degrees of freedom including cluster and hyper-nucleus formation and dynamics, we investigate the influence of different EoS on bulk observables, the multiplicity, $p_T$ and rapidity distributions of protons, $Λ$s and clusters up to A=4 as well as their influence on the collective flow. We explore three different EoS: two static EoS, dubbed 'soft' and 'hard', which differ in the compressibility modulus, as well as a soft momentum dependent EoS. We find that a soft momentum dependent EoS reproduces most baryon and cluster observables, including the flow observables, quantitatively, however, hard EOS show a similar trend. |
| title | Probing of EoS with clusters and hypernuclei |
| topic | Nuclear Theory High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2507.14255 |