Abstract Chiral anomaly modifies the scattering processes in chiral systems. These processes can be investigated using the Maxwell-Chern-Simons theory that couples electrodynamics to the pseudoscalar field θ describing the topological charge induced by external sources. Assuming slow variation of the topological charge density, the fermion scattering cross section is computed in the Born approximation and is found to have a resonance at the scattering angles proportional to the chiral conductivity. As a result, the transport coefficients are suppressed at high temperatures, which may be a reason for the smallness of the Quark Gluon Plasma viscosity. The anisotropy of the cross section arises due to the spatial variation of the topological charge; its effect on the electrical conductivity is discussed.

中文翻译：

---

手性物质中的异常散射和输运

摘要 手征异常改变了手征系统中的散射过程。可以使用 Maxwell-Chern-Simons 理论研究这些过程，该理论将电动力学与描述外部源引起的拓扑电荷的赝标量场 θ 耦合。假设拓扑电荷密度缓慢变化，费米子散射截面在 Born 近似中计算，发现在与手性电导率成正比的散射角处具有共振。因此，传输系数在高温下受到抑制，这可能是夸克胶子等离子体粘度较小的原因。截面的各向异性是由拓扑电荷的空间变化引起的；讨论了它对电导率的影响。