Transport coeffcients from pQCD to the Hadron resonance gas at finite BSQ densities

Isabella Danhoni

doi:10.1051/epjconf/202636404004/pdf

April 17, 2026

Transport coeffcients from pQCD to the Hadron resonance gas at finite BSQ densities

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Key Points

This research aims to calculate and connect shear viscosity in perturbative QCD and a hadron resonance gas at finite baryon strangeness quantum (BSQ) densities.
Calculated shear viscosity in perturbative QCD and excluded-volume HRG limits.
Utilized interpolation framework to connect different regimes.
Examined next-to-leading order weak-coupling shear viscosity for QCD at finite baryon chemical potential.
Shear viscosity was successfully computed in both perturbative and HRG scenarios.
Next-to-leading order results were presented, indicating convergence of the perturbative series.
Demonstrated the impact of finite BSQ densities on shear viscosity calculations.

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 μB, and discuss the convergence of the perturbative series

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Isabella Danhoni (2026) studied this question.

synapsesocial.com/papers/69eb0961553a5433e34b3d70 https://doi.org/10.1051/epjconf/202636404004/pdf

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Transport coeffcients from pQCD to the Hadron resonance gas at finite BSQ densities

Key Points

Abstract

Discussion

Cite This Study

Transport coeffcients from pQCD to the Hadron resonance gas at finite BSQ densities

Key Points

Abstract

Discussion

Cite This Study

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