Diagrammatic proof of the BCFW recursion relation for gluon amplitudes in QCD
High Energy Physics - Phenomenology
2009-01-07 v1
Abstract
We present a proof of the Britto-Cachazo-Feng-Witten tree-level recursion relation for gluon amplitudes in QCD, based on a direct equivalence between BCFW decompositions and Feynman diagrams. We demonstrate that this equivalence can be made explicit when working in a convenient gauge. We exhibit that gauge invariance and the particular structure of Yang-Mills vertices guarantees the validity of the BCFW construction.
Keywords
Cite
@article{arxiv.hep-ph/0511288,
title = {Diagrammatic proof of the BCFW recursion relation for gluon amplitudes in QCD},
author = {Petros D. Draggiotis and Ronald H. P. Kleiss and Achilleas Lazopoulos and Costas G. Papadopoulos},
journal= {arXiv preprint arXiv:hep-ph/0511288},
year = {2009}
}
Comments
24 pages, 33 figures