Speaker
Description
We present a comprehensive transport study of bottomonium production in ultra-relativistic heavy-ion collisions, based on a semiclassical rate-equation framework embedded in a realistic (3+1)D viscous hydrodynamic description of the expanding quark-gluon plasma (QGP) [1]. The in-medium reaction rates are constructed from a nonperturbative $T$-matrix approach, constrained by lattice-QCD inputs and consistent with heavy-quark diffusion phenomenology, thereby providing a unified description of open and hidden bottom dynamics in a strongly coupled QGP. The time evolution of bottomonium states is evaluated along hydrodynamic trajectories, with regeneration implemented through an equilibrium limit determined by in-medium binding energies and bottom-quark fugacities. This framework allows for a quantitative assessment of the interplay between primordial suppression and regeneration for different bottomonia. We compare our calculations with LHC data for Pb–Pb collisions at $\sqrt{s}_{NN}$=5.02\,TeV, including centrality, transverse-momentum, and rapidity dependences of nuclear modification factors. The nonperturbative in-medium interactions enhance both suppression and regeneration reactions, where the latter provide substantial contributions to the inclusive bottomonium yields.
[1] B. Wu and R. Rapp, Bottomonium transport in a strongly coupled quark-gluon plasma, arXiv 2508.20995 [nucl-th], submitted to Phys. Lett. B
| Is this an experimental talk? | No |
|---|---|
| Is this on behalf of a collaboration? | Yes |
| Which collaboration? | Heavy-Flavor TheorY (HEFTY) for QCD Matter |
| Are you willing to present as a poster if it is not selected for oral presentation? | Yes |