Generating function for web diagrams
arXiv:1406.6253 · doi:10.1103/PhysRevD.90.066007
Abstract
We present the description of the exponentiated diagrams in terms of generating function within the universal diagrammatic technique. In particular, we show the exponentiation of the gauge theory amplitudes involving products of an arbitrary number of Wilson lines of arbitrary shapes, which generalizes the concept of web diagrams. The presented method gives a new viewpoint on the web diagrams and proves the non-Abelian exponentiation theorem.
8 pages, 3 figures; version accepted by PRD