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arXiv 2102.11260hep-ph
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含辐射反应的非线性汤姆逊散射的解析谱

Analytical spectrum of nonlinear Thomson scattering including radiation reaction

A. Di Piazza, G. Audagnotto

摘要:

加速的电荷发射电磁辐射,随之而来的能量动量损失改变了它们的轨迹。这种现象被称为辐射反应,Landau-Lifshitz(LL)方程是电子运动的经典运动方程,它考虑了电子轨迹中的辐射反应效应。利用任意平面波下LL方程的解析解,计算了考虑辐射反应效应的经典非线性汤姆逊散射发射光谱的解析表达式。角分辨和角积分光谱的报告,这是有效的,在任意平面波。此外,我们还得到了电子缀饰质量的相位相关表达式,其中包括辐射反应效应。最后,在局域常场近似下导出了相应的谱。

英文摘要:

Accelerated charges emit electromagnetic radiation and the consequent energy-momentum loss alters their trajectory. This phenomenon is known as radiation reaction and the Landau-Lifshitz (LL) equation is the classical equation of motion of the electron, which takes into account radiation-reaction effects in the electron trajectory. By using the analytical solution of the LL equation in an arbitrary plane wave, we compute the analytical expression of the classical emission spectrum via nonlinear Thomson scattering including radiation-reaction effects. Both the angularly-resolved and the angularly-integrated spectra are reported, which are valid in an arbitrary plane wave. Also, we have obtained a phase-dependent expression of the electron dressed mass, which includes radiation-reaction effects. Finally, the corresponding spectra within the locally constant field approximation have been derived.

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