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arXiv 0801.2306hep-th
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有限温度下色磁背景场中带电胶子的极化张量

Polarization tensor of charged gluons in color magnetic background field at finite temperature

M. Bordag, V. Skalozub

摘要:

在一圈级洛伦兹背景场规范下,计算了有限温度下阿贝尔均匀磁背景场中带电胶子的极化张量。因此,我们首先确定十个独立的张量结构。对于相应的形状因子的计算,我们使用Schwinger表示,并将形状因子表示为双参数积分和所使用的松原形式主义的总和。被积函数以双曲三角函数的形式给出。像中性胶子一样,极化张量不是横截的。在张量结构中,七个是横截的,三个不是。从我们的计算中可以明确地得出非横截部分。

英文摘要:

We calculate the polarization tensor of charged gluons in a Abelian homogeneous magnetic background field at finite temperature in one loop order Lorentz background field gauge in full generality. Thereby we first determine the ten independent tensor structures. For the calculation of the corresponding form factors we use the Schwinger representation and represent form factors as double parametric integrals and a sum resulting from the Matsubara formalism used. The integrands are given explicitly in terms of hyperbolic trigonometric functions. Like in the case of neutral gluons, the polarization tensor is not transversal. Out of the tensor structures, seven are transversal and three are not. The nontransversal part follows explicitly from our calculations.

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。

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