Diagrammatic proof of the BCFW recursion relation for gluon amplitudes in QCD
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 tha...
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| Veröffentlicht in: | The European physical journal. C, Particles and fields Particles and fields, 2006-06, Vol.46 (3), p.741-750 |
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| container_title | The European physical journal. C, Particles and fields |
| container_volume | 46 |
| creator | Draggiotis, P.D. Kleiss, R.H.P. Lazopoulos, A. Papadopoulos, C.G. |
| description | 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 guarantee the validity of the BCFW construction. |
| doi_str_mv | 10.1140/epjc/s2006-02484-y |
| format | Article |
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| subjects | Amplitudes Apexes Equivalence Feynman diagrams Gauge invariance Gluons Quantum chromodynamics |
| title | Diagrammatic proof of the BCFW recursion relation for gluon amplitudes in QCD |
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