Diagrammatic proof of the BCFW recursion relation for gluon amplitudes in QCD

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...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:The European physical journal. C, Particles and fields Particles and fields, 2006-06, Vol.46 (3), p.741-750
Hauptverfasser: Draggiotis, P.D., Kleiss, R.H.P., Lazopoulos, A., Papadopoulos, C.G.
Format: Artikel
Sprache:eng
Schlagworte:
Amplitudes
Apexes
Equivalence
Feynman diagrams
Gauge invariance
Gluons
Quantum chromodynamics
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung: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.
ISSN:1434-6044
1434-6052
DOI:10.1140/epjc/s2006-02484-y