Charmonium Transport in Ultra-Relativistic Heavy-Ion Collisions at the LHC
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| Format: | Preprint |
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2024
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| _version_ | 1866918278375407616 |
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| author | Wu, Biaogang Rapp, Ralf |
| author_facet | Wu, Biaogang Rapp, Ralf |
| contents | We provide an update on our semi-classical transport approach for quarkonium production in high-energy heavy-ion collisions, focusing on $J/ψ$ and $ψ(2S)$ mesons in 5.02 TeV Pb-Pb collisions at the Large Hadron Collider (LHC) at both forward and mid-rapidity. In particular, we employ the most recent charm-production cross sections reported in pp collisions, which are pivotal for the magnitude of the regeneration contribution, and their modifications due to cold-nuclear-matter (CNM) effects. Multi-differential observables are calculated in terms of nuclear modification factors as a function of centrality, transverse momentum, and rapidity, including the contributions from bottom-decay feeddown. For our predictions for $ψ(2S)$ production, the mechanism of sequential regeneration relative to the more strongly bound $J/ψ$ meson plays an important role in interpreting recent ALICE data. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2404_09881 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Charmonium Transport in Ultra-Relativistic Heavy-Ion Collisions at the LHC Wu, Biaogang Rapp, Ralf Nuclear Theory Nuclear Experiment We provide an update on our semi-classical transport approach for quarkonium production in high-energy heavy-ion collisions, focusing on $J/ψ$ and $ψ(2S)$ mesons in 5.02 TeV Pb-Pb collisions at the Large Hadron Collider (LHC) at both forward and mid-rapidity. In particular, we employ the most recent charm-production cross sections reported in pp collisions, which are pivotal for the magnitude of the regeneration contribution, and their modifications due to cold-nuclear-matter (CNM) effects. Multi-differential observables are calculated in terms of nuclear modification factors as a function of centrality, transverse momentum, and rapidity, including the contributions from bottom-decay feeddown. For our predictions for $ψ(2S)$ production, the mechanism of sequential regeneration relative to the more strongly bound $J/ψ$ meson plays an important role in interpreting recent ALICE data. |
| title | Charmonium Transport in Ultra-Relativistic Heavy-Ion Collisions at the LHC |
| topic | Nuclear Theory Nuclear Experiment |
| url | https://arxiv.org/abs/2404.09881 |