Transport Coefficients from pQCD to the Hadron Resonance Gas at finite BSQ densities
Abstract
We calculate the shear viscosity, $η$, in two limits: perturbative QCD and an excluded-volume hadron resonance gas (HRG), at finite BSQ densities. Using an interpolation framework, we connect these regimes. In addition, we present results for (almost) next-to-leading order weak-coupling shear viscosity for QCD at finite $μ_B$, and discuss the convergence of the perturbative series.
Fields of Study & Subjects
High-Energy Particle Collisions Research
Quantum Chromodynamics and Particle Interactions
Particle physics theoretical and experimental studies
Publication details
- Journal / source
- arXiv (Cornell University)
- Publication date
- 2 February 2026
- Document type
- Preprint