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arXiv 2411.03377hep-phhep-thphysics.plasm-ph
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交叉电磁场中强场QED簇射的动力学结构

Kinetic structure of strong-field QED showers in crossed electromagnetic fields

Mattys Pouyez, Thomas Grismayer, Mickael Grech, Caterina Riconda

AI总结:

本文推导了交叉电磁场中强场QED簇射的完整动力学描述,表明其结构由初始量子参数和辐射时间决定,并给出了簇射多重性与光子谱的显式解及解析标度律。

摘要:

我们推导了交叉电磁场中电子种子强场QED簇射的完整动力学描述。簇射的动力学结构及其时间演化被证明是两个参数的函数:初始簇射量子参数和辐射时间。后者决定了簇射的短时和长时演化。我们获得了在这两个时间尺度上簇射多重性(每个种子电子产生的电子-正电子对数)和发射光子谱的显式解。我们的方法首先在恒定均匀磁场中推导。我们发现我们的结果对任意交叉场均成立,并将其应用于实验室设置,为此我们获得了完全解析的、可预测的标度律。

英文摘要:

A complete, kinetic description of electron-seeded strong-field QED showers in crossed electromagnetic fields is derived. The kinetic structure of the shower and its temporal evolution are shown to be a function of two parameters: the initial shower quantum parameter and radiation time. The latter determines the short and long time evolution of the shower. Explicit solutions for the shower multiplicity (number of pairs per seed electron) and the emitted photon spectrum are obtained for both timescales. Our approach is first derived considering showers in a constant, homogeneous magnetic field. We find that our results are valid for any crossed fields and we apply them to laboratory settings for which we obtain fully analytical, predictive scaling laws.

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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