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arXiv 1502.02556hep-phhep-latnucl-th
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热Yang-Mills理论中剪切谱函数的红外行为

On the infrared behavior of the shear spectral function in hot Yang-Mills theory

Aleksi Vuorinen, Yan Zhu

摘要:

本文重新讨论了热杨-米尔斯理论剪切通道中双圈谱函数的确定问题。在早期的计算中纠正了一个技术错误,并扩展了一个领先的订单硬热回路remation的结果被认为是显着改善红外行为的数量。这使得可以直接将结果用于相应的虚时间相关器和剪切求和规则。

英文摘要:

We revisit the determination of the two-loop spectral function in the shear channel of hot Yang-Mills theory. Correcting a technical error in an earlier computation and extending the result with a leading order Hard Thermal Loop resummation is seen to improve the infrared behavior of the quantity significantly. This makes it possible to straightforwardly use the result in the corresponding imaginary time correlator and the shear sum rule.

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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