Effects of event-by-event hydrodynamic fluctuations on bottomonium dynamics in Pb--Pb collisions at $\sqrt{s_{NN}} = 5.02$ TeV
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arXiv
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| Autori principali: | , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2026
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| _version_ | 1866917463495540736 |
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| author | Liu, Jiamin Tang, Yiyun Wei, Linyuan Chen, Baoyi |
| author_facet | Liu, Jiamin Tang, Yiyun Wei, Linyuan Chen, Baoyi |
| contents | We investigate the effects of event-by-event hydrodynamic fluctuations on bottomonium nuclear modification factors and elliptic flow in Pb--Pb collisions at $\sqrt{s_{NN}}=5.02$ TeV. The internal evolution of the heavy quarkonium is described by a time-dependent Schrödinger equation with a temperature-dependent complex heavy-quark potential, while the hot QCD medium evolution is simulated using the iEBE-VISHNU event-by-event viscous hydrodynamic framework. By incorporating both fluctuating and smooth hot media, we observe that both $R_{AA}$ and $v_2$ of various bottomonium states are marginally affected by the medium fluctuations. By realistically simulating the dynamical evolution of bottomonium within a large set of event-by-event fluctuating hot QCD medium, this work provides key insights into the behavior of heavy-quarkonium observables in relativistic heavy-ion collisions. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2605_04558 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Effects of event-by-event hydrodynamic fluctuations on bottomonium dynamics in Pb--Pb collisions at $\sqrt{s_{NN}} = 5.02$ TeV Liu, Jiamin Tang, Yiyun Wei, Linyuan Chen, Baoyi Nuclear Theory We investigate the effects of event-by-event hydrodynamic fluctuations on bottomonium nuclear modification factors and elliptic flow in Pb--Pb collisions at $\sqrt{s_{NN}}=5.02$ TeV. The internal evolution of the heavy quarkonium is described by a time-dependent Schrödinger equation with a temperature-dependent complex heavy-quark potential, while the hot QCD medium evolution is simulated using the iEBE-VISHNU event-by-event viscous hydrodynamic framework. By incorporating both fluctuating and smooth hot media, we observe that both $R_{AA}$ and $v_2$ of various bottomonium states are marginally affected by the medium fluctuations. By realistically simulating the dynamical evolution of bottomonium within a large set of event-by-event fluctuating hot QCD medium, this work provides key insights into the behavior of heavy-quarkonium observables in relativistic heavy-ion collisions. |
| title | Effects of event-by-event hydrodynamic fluctuations on bottomonium dynamics in Pb--Pb collisions at $\sqrt{s_{NN}} = 5.02$ TeV |
| topic | Nuclear Theory |
| url | https://arxiv.org/abs/2605.04558 |