# Eliminating spurious poles from gauge-theoretic amplitudes

@article{Hodges2009EliminatingSP, title={Eliminating spurious poles from gauge-theoretic amplitudes}, author={Andrew P. Hodges}, journal={Journal of High Energy Physics}, year={2009}, volume={2013}, pages={1-23} }

A bstractThis 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…

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