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Description
Heavy flavor production serves as an ideal probe of the hadronization mechanism in the hot and dense QCD medium created in relativistic heavy-ion collisions. Heavy quarks acquire elliptic flow through strong coupling with the medium, making v2 a sensitive observable for probing the hadronization time. In this work, we study the production and elliptic flow of Ds and D0 mesons in Pb+Pb collisions within a Langevin dynamics framework for heavy quarks in the QCD medium, combined with the sequential or simultaneous coalescence plus fragmentation at the hadronization hypersurface. We find that, within the sequential hadronization framework, the earlier-produced Ds exhibits a smaller v2 than the D0 in the intermediate pT region. This reversed ordering behavior aligns with preliminary ALICE measurements and provides strong evidence for the heavy flavor sequential hadronization mechanism.
| 请选择分会 | 高能重离子物理 |
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