论文标题
磁场依赖性电荷传输在有限温度下
Magnetic field-dependent electric charge transport in hadronic medium at finite temperature
论文作者
论文摘要
在线性Sigma模型中研究了在有限温度和磁场下进行辐射物质的电荷传输。使用传输理论方法，在磁场的弱和强方面估计了与电荷运输相关的各向异性转运系数。在弱磁化的介质中，磁场效应通过洛伦兹力项在玻尔兹曼方程中进行了掺入。强磁场通过Landau量化对带电颗粒的运动产生了进一步的限制。磁场依赖性的热弛豫时间是通过考虑带电的Hadron的Landau水平运动学的Hadron与S-Matrix方法的相互作用速率获得的。平均场效应通过温度依赖性强子质量嵌入分析中。此外，在弱磁场机制中研究了对时变外部电场的耐药介质反应。可以看出，辐射物质的电磁响应对平均场效应，sigma质量，外部场的强度及其在培养基中的演变具有很强的依赖性。
Electric charge transport of hadronic matter at finite temperature and magnetic field is studied within the linear sigma model. Anisotropic transport coefficients associated with the charge transport are estimated both in the weak and strong regimes of the magnetic field using the transport theory approach. In a weakly magnetized medium, the magnetic field effects are incorporated through the Lorentz force term in the Boltzmann equation. Strong magnetic field puts further constraints on the motion of charged particles through Landau quantization. Magnetic field-dependent thermal relaxation time is obtained from interaction rates of hadrons with the S-matrix approach by considering the Landau level kinematics of the charged hadrons. Mean-field effects are embedded in the analysis through the temperature-dependent hadron masses. Further, the hadronic medium response to a time-varying external electric field is studied in weak and strong magnetic field regimes. It is seen that electromagnetic responses of the hadronic matter have a strong dependence on the mean-field effects, sigma mass, the strength of the external fields, and its evolution in the medium.
