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Notes on One-loop Calculations in Light-cone Gauge

Charles B. Thorn
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Abstract

Loop calculations in light-cone gauge must confront many technical complexities. We offer here a compendium of detailed light-cone calculations in Yang-Mills theories (with no matter fields). We consistently regulate the p^+=0 singularities through discretization of the p^+ component of momentum. Although it is more cumbersome than the Mandelstam-Leibbrandt prescription, this choice has the virtue of employing only positive norm states, retaining manifest unitarity. Some of the results given here are useful in a forthcoming paper with D. Chakrabarti and J. Qiu on scattering of glue by glue, specifically the results for the gluon self-energy and one-loop vertex corrections.

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Charles B. Thorn. 2005-07-21. Notes on One-loop Calculations in Light-cone Gauge. https://arxiv.org/abs/hep-th/0507213

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