arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1909.06202hep-phnucl-th
收藏

热密强子气体在磁场中的输运系数:弛豫时间方法

Transport coefficients of hot and dense hadron gas in a magnetic field: a relaxation time approach

Arpan Das, Hiranmaya Mishra, Ranjita K. Mohapatra

摘要:

我们估计了热密强子物质在磁场存在下的各种输运系数。通过在弛豫时间近似下求解相对论性Boltzmann输运方程,我们研究了这些输运系数与温度和重子化学势的关系。在强子共振气体模型的范围内对强子物质进行了显式计算。我们估计了强子物质在均匀磁场中的热导率、电导率和剪切粘度。一般来说,磁场使输运系数各向异性。它也被观察到,所有的输运系数垂直于磁场是较小的相比,它们的各向同性对应。

英文摘要:

We estimate various transport coefficients of hot and dense hadronic matter in the presence of magnetic field. The estimation is done through solutions of the relativistic Boltzmann transport equation in the relaxation time approximation.We have investigated the temperature and the baryon chemical potential dependence of these transport coefficients. Explicit calculations are done for the hadronic matter in the ambit of hadron resonance gas model. We estimate thermal conductivity, electrical conductivity and the shear viscosity of hadronic matter in the presence of a uniform magnetic field. Magnetic field, in general, makes the transport coefficients anisotropic. It is also observed that all the transport coefficients perpendicular to the magnetic field are smaller compared to their isotropic counterpart.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑