Imaginary part of the static gluon propagator in an anisotropic (viscous) QCD plasma
Imaginary part of the static gluon propagator in an anisotropic (viscous) QCD plasma
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DOI：
10.1103/physrevd.79.114003
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发表时间：
2009-03
影响因子：
5
通讯作者：
A. Dumitru;Yun-Dong Guo;M. Strickland
中科院分区：
文献类型：
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作者：
A. Dumitru;Yun-Dong Guo;M. Strickland
在高温QCD的弱耦合“硬环”近似下，我们确定了对滞后、超前和对称胶子自能以及静态传播子的粘性修正。我们应用这些结果来计算重夸克势的虚部，它被发现是小于（在幅度上）在消失的粘度。这意味着各向异性等离子体中夸克偶素束缚态的衰变宽度较小。
We determine viscosity corrections to the retarded, advanced and symmetric gluon self-energies and to the static propagator in the weak-coupling ''hard loop'' approximation to high-temperature QCD. We apply these results to calculate the imaginary part of the heavy-quark potential which is found to be smaller (in magnitude) than at vanishing viscosity. This implies a smaller decay width of quarkonium bound states in an anisotropic plasma.