SMuK 2023 – wissenschaftliches Programm

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HK: Fachverband Physik der Hadronen und Kerne

HK 76: Invited Talks IV

HK 76.1: Hauptvortrag

Freitag, 24. März 2023, 11:00–11:30, HSZ/0002

Thermalization of heavy quarks in the QGP — •Federica Capellino — Physikalisches Institut Heidelberg, Heidelberg, Germany

Heavy-ion collision experiments allow us to study the high-temperature deconfined phase of QCD, the quark-gluon plasma (QGP). Heavy quarks (i.e. charm and beauty) are powerful tools to characterize the transport properties of the QGP. Although they are initially produced out of kinetic equilibrium via hard partonic scattering processes, recent experimental measurements of charmed hadrons pose the question regarding the possible thermalization of heavy quarks in the medium. Exploiting a mapping between transport theory and fluid-dynamics, we will show how a fluid-dynamic description of the dynamics of charm quarks in the QCD plasma is feasible. Calculations for heavy-flavor observables which assume charm quarks to be in local thermal equilibrium with the plasma will be shown in comparison with experimental data. The model-to-data comparison is a fundamental step towards constraining the spatial- and momentum-diffusion coefficient of the QGP.