论文标题
在存在椭圆形各向异性的情况下，Gluon自能的协变
Covariant formulation of gluon self-energy in presence of ellipsoidal anisotropy
论文作者
论文摘要
在这项工作中，考虑了在存在椭圆形各向异性的情况下Gluon自能量的协变。结果表明，可以用六个线性独立投影张量来编写Gluon自能的一般结构。与球体各向异性类似，可以考虑静态极限的每种集体模式引入质量尺度。通过简化的Romatschke-Strickland形式的椭圆形概括，研究了质量尺度的角度依赖性。可以观察到，与球体情况相比，在椭圆形各向异性的情况下可能会出现其他不稳定模式，具体取决于参数的选择。
In this work, a covariant formulation of the gluon self-energy in presence of ellipsoidal anisotropy is considered. It is shown that the general structure of the gluon self-energy can be written in terms of six linearly independent projection tensors. Similar to the spheroidal anisotropy, mass scales can be introduced for each of the collective modes considering the static limits. With a simplified ellipsoidal generalization of the Romatschke-Strickland form, the angular dependencies of the mass scales are studied. It is observed that, compared to the spheroidal case, additional unstable mode may appear in presence of ellipsoidal anisotropy depending upon the choice of the parameters.
