Erlangen 2026 – wissenschaftliches Programm

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HK: Fachverband Physik der Hadronen und Kerne

HK 6: Heavy-Ion Collisions and QCD Phases I

HK 6.2: Vortrag

Montag, 16. März 2026, 16:45–17:00, PHIL C 601

Heavy-quark dynamics in the QGP * attractors, thermalization, and universality — •Ruwen Schulz — Physikalisches Institut, Universität Heidelberg

Heavy quarks are produced in hard scatterings at the very beginning of a heavy-ion collision. Consequently, heavy-quarks experience all stages of a heavy-ion collision, and their dynamics are highly sensitive to the properties of the quark*gluon plasma (QGP) phase in particular. Recent studies have demonstrated that a fluid-dynamical description of heavy-quark transport in the QGP, combined with a realistic hadronization and freeze-out procedure, can successfully reproduce experimental particle spectra with remarkable precision. While this success is widely acknowledged, the underlying reasons are not yet fully understood. In this talk, I will discuss the dynamics of heavy-quarks in the QGP, with a focus on possible signs of thermalization*or hydrodynamization*within the finite lifetime of the QGP. Special emphasis will be placed on pre-thermal universal behavior, including scaling features and (hydrodynamic) attractors that may govern heavy-quark evolution even far from equilibrium.

Keywords: Attractor; Heavy Quark; Hydrodynamics