BRST-driven cancellations and gauge invariant Green's functions
arXiv:hep-ph/0310149 · doi:10.1016/j.nuclphysbps.2004.04.179
Abstract
We study a fundamental, all order cancellation operating between graphs of distinct kinematic nature, which allows for the construction of gauge-independent effective self-energies, vertices, and boxes at arbitrary order.
4 pages, 3 figures. Contributed to QCD 03: High-Energy Physics International Conference in Quantum Chromodynamics, Montpellier, France, 2-9 July 2003