Cachazo-Svrcek-Witten Rules for Tree-Level Gluonic Amplitudes Revisited
arXiv:2110.04569 · doi:10.1007/s11433-021-1846-9
Abstract
We provide a new proof of Cachazo-Svrcek-Witten rules for tree-level gluonic amplitudes. As a key step, we explicitly show the cancellation of spurious poles originating from the maximally helicity violating vertices in these rules. To achieve this, we introduce specially-defined two-off-shell-line sub-amplitudes and study their residues at spurious poles.
v3, 26 pages, 9 figures, typos fixed, almost the published version
References in corpus (8)
- Generating Tree Amplitudes in N=4 SYM and N=8 SG
- Taming Tree Amplitudes In General Relativity
- From Twistor Actions to MHV Diagrams
- Lectures on Twistor Strings and Perturbative Yang-Mills Theory
- Proof of the MHV vertex expansion for all tree amplitudes in N=4 SYM theory
- Structure of the MHV-rules Lagrangian
- MHV Lagrangian for N=4 Super Yang-Mills
- The Twelve-Graviton Next-to-MHV Amplitude from Risager's Construction