# Online Strangeness in Quark Matter Conference 2021

May 17 – 22, 2021
US/Eastern timezone

## Heavy quark momentum diffusion from the lattice

May 20, 2021, 10:50 AM
20m
Room A (Zoom)

### Room A

#### Zoom

zoom co-host: Niveditha Ramasubramanian https://stonybrook.zoom.us/j/99346269726
Theory talk Bulk matter phenomena associated with strange and heavy quarks

### Speaker

Luis Altenkort (Bielefeld University)

### Description

Heavy quark transport coefficients calculated from first-principles QCD are a crucial input for transport models. Utilizing the heavy quark limit, we will discuss the results of a novel approach to nonperturbatively estimate the heavy quark momentum diffusion coefficient in a hot gluonic medium from gradient-flowed color-electric correlators on the lattice. Unlike others, this approach can be extended to a medium with dynamical fermions. The correlation functions are computed on fine isotropic lattices at $1.5\,T_\mathrm{c}$ and are extrapolated to yield continuum data at zero flow time that is fully renormalized. Through theoretically well-established model fits we estimate the corresponding spectral function and in turn the diffusion coefficient, which is consistent with previous studies.

### Primary author

Luis Altenkort (Bielefeld University)

### Co-authors

Prof. Guy Moore (Technische Universität Darmstadt) Dr Olaf Kaczmarek (Bielefeld University) Dr Hai-Tao Shu (Bielefeld University) Mr Lukas Mazur (Bielefeld University) Dr Alexander Max Eller (Technische Universität Darmstadt)