# Quark Matter 2014 - XXIV International Conference on Ultrarelativistic Nucleus-Nucleus Collisions

19-24 May 2014
Europe/Zurich timezone

## he second order hydro-coefficient $\kappa_t$ and antiscreening of QED and QCD plasmas from lattice QCD

20 May 2014, 16:30
2h

### spectrum

Board: A-06
Poster QCD at High Temperature and/or Density

### Speaker

Dr Anthony Francis (Helmholtz Institut Mainz)

### Description

The static forces between electric charges and currents are modified at the loop level by the presence of a plasma. While electric charges are screened, currents are not. This can be understood as medium-induced ‘antiscreening’ of the Ampere force and enters the constitutive equation of the electric current at second order in a ‘hydrodynamic’ description as the quantity $\kappa_t$. We investigate these effects and this second order ’hydro-coefficient’ quantitatively using non-perturbative simulations of QCD with two light degenerate flavors of quarks.

### Primary author

Dr Anthony Francis (Helmholtz Institut Mainz)

### Co-authors

Dr Bastian B. Brandt (Universitaet Regensburg) Prof. Harvey B. Meyer (Helmholtz Institut Mainz, PRISMA Cluster of Excelence and Institut fuer Kernphysik Universitaet Mainz)

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