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热QCD介质中两圈图超出领头对数的光子产生

Beyond leading-logarithm photon production from two-loop diagrams in a hot QCD medium

Sumit, Ritesh Ghosh, Munshi G. Mustafa

arXiv 2607.24950首次发表:更新:

AI 中文总结

研究热QCD介质中夸克胶子等离子体的高能光子产生,通过评估两圈光子自能虚部推导解析表达式,热场理论速率与动力学理论计算结果相符。

AI 中文摘要

我们通过评估热QCD中两圈光子自能的虚部来研究夸克胶子等离子体的高能光子产生。在虚时形式体系内,我们推导了光子产生率的领头对数贡献和超出领头对数贡献的解析表达式。热场理论框架下得到的速率与相关光子产生过程的动力学理论计算结果相符。

英文摘要

We investigate high-energy photon production from a quark-gluon plasma by evaluating the imaginary part of the two-loop photon self-energies in thermal QCD. Working within the imaginary-time formalism, we derive analytical expressions for both the leading-logarithmic and the beyond-leading-logarithmic contributions to the photon production rate. The rates obtained within the thermal field theoretical framework agree with those derived from kinetic theory calculations for the relevant photon-production processes.

Comments41 pages, 5 figures

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