Probing configuration of $α$ clusters with spectator particles in relativistic heavy-ion collisions
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arXiv
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| Hauptverfasser: | , , , , , |
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| Format: | Preprint |
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2023
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| _version_ | 1866910453424193536 |
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| author | Liu, Lu-Meng Li, Song-Jie Wang, Zhen Xu, Jun Ren, Zhong-Zhou Huang, Xu-Guang |
| author_facet | Liu, Lu-Meng Li, Song-Jie Wang, Zhen Xu, Jun Ren, Zhong-Zhou Huang, Xu-Guang |
| contents | We propose to use spectator particle yield ratios to probe the configuration of $α$ clusters in $^{12}$C and $^{16}$O by their collisions at RHIC and LHC energies. The idea is illustrated based on initial density distributions with various $α$-cluster configurations generated by a microscopic cluster model, and without $α$ clusters from mean-field calculations. The multifragmentation of the spectator matter produces more spectator light nuclei including $α$ clusters in collisions of nuclei with chain structure of $α$ clusters, compared to those of nuclei with a more compact structure. The yield ratio of free spectator neutrons to spectator particles with mass-to-charge ratio $A/Z=2$ scaled by their masses can be practically measured by the zero-degree calorimeter (ZDC) at RHIC and LHC, serving as a clean probe free from modeling the complicated dynamics at midrapidities. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2312_13572 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Probing configuration of $α$ clusters with spectator particles in relativistic heavy-ion collisions Liu, Lu-Meng Li, Song-Jie Wang, Zhen Xu, Jun Ren, Zhong-Zhou Huang, Xu-Guang Nuclear Theory High Energy Physics - Experiment Nuclear Experiment We propose to use spectator particle yield ratios to probe the configuration of $α$ clusters in $^{12}$C and $^{16}$O by their collisions at RHIC and LHC energies. The idea is illustrated based on initial density distributions with various $α$-cluster configurations generated by a microscopic cluster model, and without $α$ clusters from mean-field calculations. The multifragmentation of the spectator matter produces more spectator light nuclei including $α$ clusters in collisions of nuclei with chain structure of $α$ clusters, compared to those of nuclei with a more compact structure. The yield ratio of free spectator neutrons to spectator particles with mass-to-charge ratio $A/Z=2$ scaled by their masses can be practically measured by the zero-degree calorimeter (ZDC) at RHIC and LHC, serving as a clean probe free from modeling the complicated dynamics at midrapidities. |
| title | Probing configuration of $α$ clusters with spectator particles in relativistic heavy-ion collisions |
| topic | Nuclear Theory High Energy Physics - Experiment Nuclear Experiment |
| url | https://arxiv.org/abs/2312.13572 |