| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 10724868 | Physics Letters B | 2008 | 7 Pages |
Abstract
We derive the analog of the Cachazo-SvrÄek-Witten (CSW) diagrammatic Feynman rules for four-dimensional Yang-Mills gauge theory coupled to a massive colored scalar. The mass term is shown to give rise to a new tower of vertices in addition to the CSW vertices for massless scalars in non-supersymmetric theories. The rules are derived directly from an action, once through a canonical transformation within light-cone Yang-Mills and once by the construction of a twistor action. The rules are tested against known results in several examples and are used to simplify the proof of on-shell recursion relations for amplitudes with massive scalars.
Related Topics
Physical Sciences and Engineering
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Authors
Rutger Boels, Christian Schwinn,