The pole part of the 1PI four-point function in light-cone gauge Yang-Mills theory Original Research Article

The complete UV-divergent contribution to the one-loop 1PI four-point function of Yang-Mills theory in the light-cone gauge is computed in this paper. The formidable UV-divergent contributions arising from each four-point Feynman diagram yield a succinct final result which contains non-local terms as expected. These non-local contributions are consistent with gauge symmetry, and correspond to a non-local renormalization of the wave function. Renormalization of Yang-Mills theory in the light-cone gauge is thus shown explicitly at the one-loop level.