论文标题
夸克异常磁矩对磁化QCD物质和介子光谱的影响
Effect of the anomalous magnetic moment of quarks on magnetized QCD matter and meson spectra
论文作者
论文摘要
我们系统地研究了夸克的异常磁矩（AMM）对磁化QCD物质的影响，包括磁敏感性，临界温度周围的逆磁催化以及磁场下的中性/带电pion和Rho Meson光谱。夸克的动态弹药，与磁场的耦合导致夸克的分散关系的zeeman分裂，因此会改变磁场下的磁性特性和介子质谱。已经发现，包括夸克的AMM无法完全了解磁化物的晶格结果：夸克的AMM减少了动力学夸克质量，从而导致围绕$ t_c $的反磁性催化。中性斜向质量对AMM非常敏感，它会随着磁场的速度减小，并且带电的Pion质量显示出非线性行为，即首先随着磁场的线性增加，然后在强磁场处饱和。对于Rho Meson而言，观察到AMM减少了具有不同$ S_Z $的中性Rho Meson质量的质量，并减少了$ S_Z =+1,0 $ component oppard的Rho Meson Mass的质量，但增强了$ S_Z = -1 $ $ COMPONT EPACCENT RHO MESON MOSEN MOSESON MASE。不同AMM的低温下的磁敏感性可以为正或负。
We systematically investigate the effect of the anomalous magnetic moment(AMM) of quarks on the magnetized QCD matter, including the magnetic susceptibility, the inverse magnetic catalysis around the critical temperature and the neutral/charged pion and rho meson spectra under magnetic fields. The dynamical AMM of quarks, its coupling with magnetic field causes Zeeman splitting of the dispersion relation of quarks thus changes the magnetism properties and meson mass spectra under magnetic fields. It is found that including the AMM of quarks cannot fully understand lattice results of the magnetized matter: The AMM of quarks reduces the dynamical quark mass thus causes the inverse magnetic catalysis around $T_c$. The neutral pion mass is very sensitive to the AMM, it decreases with magnetic field quickly, and the charged pion mass shows a nonlinear behavior, i.e., firstly linearly increases with the magnetic field and then saturates at strong magnetic field. For rho meson, it is observed that AMM reduces the mass of neutral rho meson mass with different $s_z$, and reduces the mass of $s_z=+1,0$ component charged rho meson mass but enhances the $s_z=-1$ component charged rho meson mass. The magnetic susceptibility at low temperature can be either positive or negative with different AMM.
