强laser脉冲中的非线性中微子-光子相互作用
Nonlinear neutrino-photon interactions inside strong laser pulses
摘要：
尽管中微子是中性粒子，并且仅通过弱规范玻色子的交换进行相互作用，但带电轻子和夸克可以介导与光子场的耦合超过树水平。在相对论强激光场中，激光振幅的非线性效应可以发挥重要作用，因为电子和正电子与光子场的相干部分非微扰地相互作用。在这里，我们第一次计算的领先的顺序内的轴矢量矢量电流耦合张量的任意平面波激光场（这是考虑到正是采用毛茸茸的图片）的贡献。电流耦合张量出现在强激光场中的各种电弱过程的计算中，如中微子的光子发射或三叉电子-正电子对的产生。此外，正如我们将在下面看到的，轴矢量-矢量电流耦合张量包含阿德勒-贝尔-杰基（ABJ）异常。这种情况使得电流耦合张量从基本观点来看也很有趣，因为它是具有这种异常的外场中最简单的费曼图。
英文摘要：
Even though neutrinos are neutral particles and interact only via the exchange of weak gauge bosons, charged leptons and quarks can mediate a coupling to the photon field beyond tree level. Inside a relativistically strong laser field nonlinear effects in the laser amplitude can play an important role, as electrons and positrons interact nonperturbatively with the coherent part of the photon field. Here, we calculate for the first time the leading-order contribution to the axial-vector--vector current-coupling tensor inside an arbitrary plane-wave laser field (which is taken into account exactly by employing the Furry picture). The current-coupling tensor appears in the calculation of various electroweak processes inside strong laser fields like photon emission or trident electron-positron pair production by a neutrino. Moreover, as we will see below, the axial-vector--vector current-coupling tensor contains the Adler-Bell-Jackiw (ABJ) anomaly. This occurrence renders the current-coupling tensor also interesting from a fundamental point of view, as it is the simplest Feynman diagram in an external field featuring this kind of anomaly.
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。
