Direct Proof Of Tree-Level Recursion Relation In Yang-Mills Theory
arXiv:hep-th/0501052 · doi:10.1103/PhysRevLett.94.181602
Abstract
Recently, by using the known structure of one-loop scattering amplitudes for gluons in Yang-Mills theory, a recursion relation for tree-level scattering amplitudes has been deduced. Here, we give a short and direct proof of this recursion relation based on properties of tree-level amplitudes only.
10 pp. Added section 4: Proof of MHV Recursion Relations