| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 8193128 | Physics Letters B | 2011 | 4 Pages |
Abstract
Using only the Britto-Cachazo-Feng-Witten (BCFW) on-shell recursion relation we prove color-order reversed relation, U(1)-decoupling relation, Kleiss-Kuijf (KK) relation and Bern-Carrasco-Johansson (BCJ) relation for color-ordered gauge amplitude in the framework of S-matrix program without relying on Lagrangian description. Our derivation is the first pure field theory proof of the new discovered BCJ identity, which substantially reduces the color-ordered basis from (nâ2)! to (nâ3)!. Our proof gives also its physical interpretation as the mysterious bonus relation with 1z2 behavior under suitable on-shell deformation for no adjacent pair.
Keywords
Related Topics
Physical Sciences and Engineering
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Nuclear and High Energy Physics
Authors
Bo Feng, Rijun Huang, Yin Jia,