Cachazo-Svrcek-Witten Rules for Tree-Level Gluonic Amplitudes Revisited

Chuan-Jie Zhu; Jun-Bao Wu; Wen-Jie Zhang

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Cachazo-Svrcek-Witten Rules for Tree-Level Gluonic Amplitudes Revisited

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arxiv 2110.04569 v3 pith:6IWK7W5K submitted 2021-10-09 hep-th

Cachazo-Svrcek-Witten Rules for Tree-Level Gluonic Amplitudes Revisited

Wen-Jie Zhang , Jun-Bao Wu , Chuan-Jie Zhu This is my paper

classification hep-th

keywords rulesamplitudescachazo-svrcek-wittengluonicpolesspurioustree-levelachieve

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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.

Cachazo-Svrcek-Witten Rules for Tree-Level Gluonic Amplitudes Revisited

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