Köln 2025 – wissenschaftliches Programm

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HK: Fachverband Physik der Hadronen und Kerne

HK 3: Heavy-Ion Collisions and QCD Phases I

HK 3.4: Vortrag

Montag, 10. März 2025, 15:45–16:00, HS 3 Chemie

Fluid dynamics of beauty quarks at the LHC — •Federica Capellino — GSI Helmholtzzentrum Darmstadt, Germany

Heavy quarks (i.e. charm and beauty) are powerful tools to characterize the quark-gluon plasma (QGP) produced in heavy-ion collisions. Although they are initially produced out of kinetic equilibrium via hard partonic scattering processes, recent measurements of the anisotropic flow of charmed hadrons pose the question regarding the possible thermalization of heavy quarks in the medium. By exploiting a mapping between transport theory and hydrodynamics [1], we developed a fluid-dynamic description of heavy-quark diffusion in the QCD plasma. We will show that a fluid-dynamic description of beauty quarks at LHC energies is supported by the most recent lattice-QCD calculations. We will present results for transverse momentum distributions and integrated yields of beauty hadrons obtained with a fluid-dynamic code coupled with the conservation of a heavy-quark - antiquark current in the QGP [2,3]. This work is funded via the DFG ISOQUANT Collaborative Research Center (SFB 1225).

[1] Phys.Rev.D 106 (2022) 3, 034021

[2] Phys.Rev.D 108 (2023) 11, 116011

[3] Capellino et al., in preparation

Keywords: heavy quarks; quark-gluon plasma