论文标题
平面波中的一环顶点校正
One-loop vertex correction in a plane wave
论文作者
论文摘要
我们计算两个壳外部电子和一个外壳外部光子的情况下，在任意平面波背景字段中单循环校正的一般表达。研究了在平面波背景场和辐射场的仪表转换下的顶点校正的性能。关于顶点校正的差异，通过将有限的质量分配给光子，而紫外线则与真空中的真空相当重新归一化。最后，还得出了局部交叉场中顶点校正的相应表达，并根据Ritus-narozhny猜想显示高场渐近造物。
We compute the general expression of the one-loop vertex correction in an arbitrary plane-wave background field for the case of two on-shell external electrons and an off-shell external photon. The properties of the vertex corrections under gauge transformations of the plane-wave background field and of the radiation field are studied. Concerning the divergences of the vertex correction, the infrared one is cured by assigning a finite mass to the photon, whereas the ultraviolet one is shown to be renormalized exactly as in vacuum. Finally, the corresponding expression of the vertex correction within the locally-constant crossed field is also derived and the high-field asymptotic is shown to scale according to the Ritus-Narozhny conjecture.
