Heavy quark diffusion coefficient during hydrodynamization - non-equilibrium vs. equilibrium

K. Boguslavski, A. Kurkela, T. Lappi, F. Lindenbauer, J. Peuron

Research output: Chapter in Book/Report/Conference proceedingPaper in conference proceedingpeer-review

Abstract

We compute the heavy quark momentum diffusion coefficient using effective kinetic theory for a system going through bottom-up isotropization until approximate hydrodynamization. We find that when comparing the nonthermal diffusion coefficient to the thermal one for the same energy density, the observed deviations throughout the whole evolution are within 30% from the thermal value. For thermal systems matched to other quantities we observe considerably larger deviations. We also observe that the diffusion coefficient in the transverse direction dominates at large occupation number, whereas for an underoccupied system the longitudinal diffusion coefficient dominates. Similarly, we study the jet quenching parameter, where we obtain a smooth evolution connecting the large values of the glasma phase with the smaller values in the hydrodynamical regime.

Original languageEnglish
Title of host publicationProceedings of Science
Volume438
Publication statusPublished - 2024 Feb 16
Event11th International Conference on Hard and Elecctromagnetic Probes of High-Energy Nuclear Collisions, HardProbes 2023 - Aschaffenburg, Germany
Duration: 2023 Mar 262023 Mar 31

Publication series

NameProceedings of Science
PublisherSissa Medialab srl
ISSN (Print)1824-8039

Conference

Conference11th International Conference on Hard and Elecctromagnetic Probes of High-Energy Nuclear Collisions, HardProbes 2023
Country/TerritoryGermany
CityAschaffenburg
Period2023/03/262023/03/31

Subject classification (UKÄ)

  • Condensed Matter Physics

Fingerprint

Dive into the research topics of 'Heavy quark diffusion coefficient during hydrodynamization - non-equilibrium vs. equilibrium'. Together they form a unique fingerprint.

Cite this