BCFW recursion

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The Britto–Cachazo–Feng–Witten recursion relations are a set of on-shell recursion relations in quantum field theory.[1][2] They are named for their creators, Ruth Britto, Freddy Cachazo, Bo Feng and Edward Witten.

The BCFW recursion method is a way of calculating scattering amplitudes.[3] Extensive use is now made of these techniques.[4]

See also[edit]


  1. ^ Brecht Truijen (August 2012). "Britto-Cachazo-Feng-Witten Recursion: An Introduction" (PDF). Archived from the original (PDF) on 21 February 2014. Retrieved 23 September 2013. 
  2. ^ Achilleas Lazopoulos (24 August 2006). "B.C.F.W. Recursion Relations and the Link to Feynman Graphs" (PDF). Retrieved 23 September 2013. 
  3. ^ Ruth Britto; Freddy Cachazo; Bo Feng; Edward Witten (2005). "Direct Proof of Tree-Level Recursion Relation in Yang-Mills Theory". Physical Review Letters. 94 (18): 181602. Bibcode:2005PhRvL..94r1602B. PMID 15904356. arXiv:hep-th/0501052Freely accessible. doi:10.1103/PhysRevLett.94.181602. 
  4. ^ Bo Feng; Mingxing Luo (2011). "An Introduction to On-shell Recursion Relations". arXiv:1111.5759Freely accessible [hep-th].