Hot and Dense QCD Shear Viscosity at (almost) NLO

by Isabella Danhoni (TU Darmstadt)

Thursday Sep 19, 2024, 2:15 PM → 3:45 PM Europe/Berlin

D6-135 (UHG)

The next-to-leading order weak-coupling shear viscosity of QCD was computed six years ago.
However, these results have never been applied at finite baryon chemical potential $\mu$, even though intermediate-energy heavy ion collisions and merging neutron stars may explore the Quark-Gluon Plasma in a regime with large baryon chemical potentials.
In this talk, I extend the next-to-leading order shear viscosity calculations to finite $\mu$, and show that, while the convergence of the weak-coupling expansion is questionable for achievable plasmas, it is somewhat better at $\mu > T$ than at $\mu=0$.

2024-09-19_Isabella_Danhoni.pdf