Heavy quark momentum diffusion coefficient during hydrodynamization via effective kinetic theory
Abstract
In these proceedings, we compute the heavy quark momentum diffusion coefficient using QCD effective kinetic theory for a plasma going through the bottom-up thermalization scenario until approximate hydrodynamization. This transport coefficient describes heavy quark momentum diffusion in the quark-gluon plasma and is used in many phenomenological frameworks, e.g. in the open quantum systems approach. Our extracted nonthermal diffusion coefficient matches the thermal one for the same energy density within 30%. At large occupation numbers in the earliest stage, the transverse diffusion coefficient dominates, while the longitudinal diffusion coefficient is larger for the underoccupied system in the later stage of hydrodynamization.
Main Authors
Format
Conferences
Conference paper
Published
2024
Series
Subjects
Publication in research information system
Publisher
EDP Sciences
The permanent address of the publication
https://urn.fi/URN:NBN:fi:jyu-202408015311Use this for linking
Parent publication ISBN
978-2-7598-9126-9
Review status
Peer reviewed
ISSN
2101-6275
DOI
https://doi.org/10.1051/epjconf/202429609001
Conference
International Conference on Ultra-Relativistic Nucleus-Nucleus Collisions
Language
English
Published in
EPJ Web of Conferences
Is part of publication
30th International Conference on Ultra-Relativistic Nucleus-Nucleus Collisions (Quark Matter 2023)
Citation
- Boguslavski, K., Kurkela, A., Lappi, T., Lindenbauer, F., & Peuron, J. (2024). Heavy quark momentum diffusion coefficient during hydrodynamization via effective kinetic theory. In R. Bellwied, F. Geurts, R. Rapp, C. Ratti, A. Timmins, & I. Vitev (Eds.), 30th International Conference on Ultra-Relativistic Nucleus-Nucleus Collisions (Quark Matter 2023) (Article 09001). EDP Sciences. EPJ Web of Conferences, 296. https://doi.org/10.1051/epjconf/202429609001
License
Funder(s)
European Commission
Research Council of Finland
Research Council of Finland
European Commission
Funding program(s)
RIA Research and Innovation Action, H2020
Centre of Excellence, AoF
Academy Project, AoF
ERC Advanced Grant
RIA Research and Innovation Action, H2020
Huippuyksikkörahoitus, SA
Akatemiahanke, SA
ERC Advanced Grant
Funded by the European Union. Views and opinions expressed are however those of the author(s) only and do not necessarily reflect those of the European Union or the European Education and Culture Executive Agency (EACEA). Neither the European Union nor EACEA can be held responsible for them.
Additional information about funding
This work is supported by the European Research Council, ERC-2018-ADG-835105 YoctoLHC and under the European Union’s Horizon 2020 research and innovation by the STRONG-2020 project (grant agreement No. 824093), Academy of Finland by the Centre of Excellence in Quark Matter (project 346324) and project 321840, the Austrian Science Fund (FWF) under project P 34455, and the Doctoral Program W1252-N27 Particles and Interactions. The authors wish to acknowledge CSC – IT Center for Science, Finland, for computational resources. The content of this article does not reflect the official opinion of the European Union and responsibility for the information and views expressed therein lies entirely with the authors.
Copyright© 2024 the Authors