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| Main Authors: | , |
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| Format: | Preprint |
| Published: |
2022
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2211.12303 |
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Table of Contents:
- We have investigated the effect of a weak magnetic field on momentum transport in a thermal QCD medium at finite quark chemical potential using a semiclassical kinetic theory. In the presence of a magnetic field, the momentum transport coefficients acquire a tensor structure, reflected by the five shear $\left(η_0, η_1, η_2, η_3\right.$ and $\left.η_4\right)$ and two bulk viscous components $\left(ζ_0\right.$ and $\left. ζ_1\right)$. The weak magnetic field removes the degeneracy in the effective mass of flavours, leading to different masses for the left-handed (L) and right-handed (R) chiral modes of quarks. The coefficients, $η_0, η_1$ and $η_3$ decrease with magnetic field in L mode and increase in $\mathrm{R}$ mode, whereas, $η_2$ and $η_4$ increase in both L and $\mathrm{R}$ mode. The bulk viscous coefficients, $ζ_0$ and $ζ_1$ increase with magnetic field for both L and R mode. The shear and bulk viscous coefficients positively amplify with baryon asymmetry.