Dual Superconformal Invariance, Momentum Twistors and Grassmannians
Dual superconformal invariance has recently emerged as a hidden symmetry of planar scattering amplitudes in N=4 super Yang-Mills theory. This symmetry can be made manifest by expressing amplitudes in terms of `momentum twistors', as opposed to the usual twistors that make the ordinary superconf...
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Format: | Journal article |
Published: |
2009
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