3–9 Sept 2023
Hilton of the Americas, 1600 Lamar, Houston, Texas, 77010, USA
US/Central timezone

Heavy quark momentum diffusion coefficient during hydrodynamization via effective kinetic theory

5 Sept 2023, 09:50
20m
Ballroom D (Hilton of the Americas)

Ballroom D

Hilton of the Americas

Oral Heavy Flavor Heavy Flavor

Speaker

Jarkko Peuron (University of Jyväskylä)

Description

We compute the heavy quark momentum diffusion coefficient $\kappa$ using QCD effective kinetic theory for a system going through bottom-up isotropization 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.

Category Theory

Primary authors

Eero Aleksi Kurkela (University of Stavanger (NO)) Florian Lindenbauer (TU Wien) Jarkko Peuron (University of Jyväskylä) Kirill Boguslavski (TU Wien (AT)) Tuomas Lappi

Presentation materials

Peer reviewing

Paper