Eliminating spurious poles from gauge-theoretic amplitudes
| dc.creator | Hodges, Andrew | |
| dc.date | 2009-05-11 | |
| dc.date.accessioned | 2026-07-07T13:13:35Z | |
| dc.date.available | 2026-07-07T13:13:35Z | |
| dc.description | This note addresses the problem of spurious poles in gauge-theoretic scattering amplitudes. New twistor coordinates for the momenta are introduced, based on the concept of dual conformal invariance. The cancellation of spurious poles for a class of NMHV amplitudes is greatly simplified in these coordinates. The poles are eliminated altogether by defining a new type of twistor integral, dual to twistor diagrams as previously studied, and considerably simpler. The geometric features indicate a supersymmetric extension of the formalism at least to all NMHV amplitudes, allowing the dihedral symmetry of the super-amplitude to be made manifest. More generally, the definition of `momentum-twistor' coordinates suggests a powerful new approach to the study of scattering amplitudes. | |
| dc.description | 28 pages, 5 figures | |
| dc.identifier | https://arxiv.org/abs/0905.1473 | |
| dc.identifier | http://arxiv.org/abs/0905.1473 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/229936 | |
| dc.subject | High Energy Physics - Theory | |
| dc.title | Eliminating spurious poles from gauge-theoretic amplitudes | |
| dc.type | text |