https://doi.org/10.1140/epja/s10050-024-01472-7
Review
Collective excitations in the hot QCD medium and the propagation of heavy quarks
1
Key Laboratory of Quark and Lepton Physics (MOE) and Institute of Particle Physics, Central China Normal University, 430079, Ponda, Wuhan, China
2
School of Physical Sciences, National Institute of Science Education and Research, HBNI, 752050, Jatni, India
Received:
29
June
2023
Accepted:
10
November
2024
Published online:
8
January
2025
This review explores the current understanding of collective excitations and the dynamics of heavy quark propagation in the quark-gluon plasma (QGP) formed in relativistic heavy-ion collisions. We focus on three core aspects: the theoretical modelling of the QGP, including momentum anisotropy, medium-induced collisions, finite chemical potential, and non-ideal interactions; the collective behaviours within the plasma; and the interaction dynamics of heavy quarks as they traverse the medium. Along with the polarization energy loss mechanisms, we also review the possibility of energy gain due to thermal field fluctuations. Lastly, we discuss how these theoretical insights can be tested through experiments and outline possible directions for future research.
© The Author(s) 2024
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