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An Introduction to Webs
摘要：
网是费曼图的集合，其在发射的辐射是软的运动学极限中对散射振幅的指数有贡献。因此，它们有许多现象学和形式上的应用，并提供了对微扰量子场论的全阶结构的诱人一瞥。这篇文章是基于一系列的讲座给研究生，目的是提供一个教学介绍网站。涵盖的主题包括指数（非）阿贝尔规范理论，网络混合矩阵形式主义的非阿贝尔规范理论，以及最近的进展计算网络图。问题贯穿全文，以帮助理解。
英文摘要：
Webs are sets of Feynman diagrams that contribute to the exponents of scattering amplitudes, in the kinematic limit in which emitted radiation is soft. As such, they have a number of phenomenological and formal applications, and offer tantalising glimpses into the all-order structure of perturbative quantum field theory. This article is based on a series of lectures given to graduate students, and aims to provide a pedagogical introduction to webs. Topics covered include exponentiation in (non-)abelian gauge theories, the web mixing matrix formalism for non-abelian gauge theories, and recent progress on the calculation of web diagrams. Problems are included throughout the text, to aid understanding.
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。
