https://doi.org/10.1051/epjconf/202429610004
Limiting attractors in heavy-ion collisions—The interplay between bottom-up and hydrodynamic attractors
1 Institute for Theoretical Physics, TU Wien, Wiedner Hauptstraße 8-10, 1040 Vienna, Austria
2 Faculty of Science and Technology, University of Stavanger, 4036 Stavanger, Norway
3 Department of Physics, University of Jyväskylä, P.O. Box 35, 40014 University of Jyväskylä, Finland
4 Helsinki Institute of Physics, P.O. Box 64, 00014 University of Helsinki, Finland
* Speaker, e-mail: florian.lindenbauer@tuwien.ac.at
Published online: 26 June 2024
In this contribution to the Quark Matter 2023 proceedings, we study the hydrodynamization process in heavy-ion collisions using QCD kinetic theory and introduce the new concept of limiting attractors. They are defined via an extrapolation of observables to vanishing and infinite couplings. We find that the pressure ratio exhibits both a hydrodynamic and a bottom-up limiting attractor, while the ratios of hard probes transport coefficients q^zz/q^yy and κT/κz are better described in terms of the new bottom-up limiting attractor.
© The Authors, published by EDP Sciences, 2024
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
