Aug 4 – 7, 2020
online
Asia/Tokyo timezone

Heavy quark diffusion coefficient from lattice QCD

Aug 6, 2020, 2:00 PM
20m
online

online

QCD at nonzero Temperature and Density QCD at nonzero Temperature and Density

Speaker

Hai-Tao Shu (*) (Bielefeld University)

Description

We show the heavy quark diffusion coefficient calculated on the lattice. The coefficient is obtained from the color-electric correlators via Kubo formula. The correlators are measured at 1.5$T_c$ on different large isotropic lattices in the quenched approximation under gradient flow. After continuum extrapolation we also extrapolate the continuum correlators back to zero flow time. The extrapolated correlators are then fitted using theoretically motivated model spectral functions. By taking the slope of the spectral function at vanishing frequency we obtain the heavy quark diffusion coefficient. In this talk we will also compare our results with those from other lattice studies.

Primary author

Hai-Tao Shu (*) (Bielefeld University)

Co-authors

Presentation materials