Identifying $α$-cluster configurations in $^{20}$Ne via ultracentral Ne+Ne Collisions
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| Format: | Preprint |
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2025
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| _version_ | 1866918360495685632 |
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| author | Li, Pei Zhou, Bo Ma, Guo-Liang |
| author_facet | Li, Pei Zhou, Bo Ma, Guo-Liang |
| contents | The initial-state geometry in relativistic heavy-ion collisions provides a novel probe to nuclear cluster structure. For $^{20}$Ne, a novel approach is proposed to distinguish between the cluster configurations (5$α$ versus $α+ ^{16}$O) in order to gain insight into nuclear structure transitions governed by many-body quantum correlations. Through analytical calculations with the microscopic Brink model and event-by-event simulations using the hydrodynamic framework, we establish the normalized symmetric cumulant NSC (3, 2) and the Pearson coefficient $ρ_2 (v_{2}^{2},\ δ[p_{\mathrm{T}}])$ as quantitative discriminators to reveal enhanced cluster degrees of freedom in the ground state of $^{20}$Ne. The ultracentral Ne+Ne collisions at the LHC can experimentally identify these two competing configurations via these flow correlation observables, opening a new paradigm for probing clustering in light nuclei. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2504_04688 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Identifying $α$-cluster configurations in $^{20}$Ne via ultracentral Ne+Ne Collisions Li, Pei Zhou, Bo Ma, Guo-Liang Nuclear Theory High Energy Physics - Phenomenology Nuclear Experiment The initial-state geometry in relativistic heavy-ion collisions provides a novel probe to nuclear cluster structure. For $^{20}$Ne, a novel approach is proposed to distinguish between the cluster configurations (5$α$ versus $α+ ^{16}$O) in order to gain insight into nuclear structure transitions governed by many-body quantum correlations. Through analytical calculations with the microscopic Brink model and event-by-event simulations using the hydrodynamic framework, we establish the normalized symmetric cumulant NSC (3, 2) and the Pearson coefficient $ρ_2 (v_{2}^{2},\ δ[p_{\mathrm{T}}])$ as quantitative discriminators to reveal enhanced cluster degrees of freedom in the ground state of $^{20}$Ne. The ultracentral Ne+Ne collisions at the LHC can experimentally identify these two competing configurations via these flow correlation observables, opening a new paradigm for probing clustering in light nuclei. |
| title | Identifying $α$-cluster configurations in $^{20}$Ne via ultracentral Ne+Ne Collisions |
| topic | Nuclear Theory High Energy Physics - Phenomenology Nuclear Experiment |
| url | https://arxiv.org/abs/2504.04688 |