From the twistor action to amplitudes, Wilson loops, dlogs and dilogs

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• Lionel Mason (Oxford)
• Tuesday 17 February 2015, 16:00-17:00
• DAMTP, room MR11.

If you have a question about this talk, please contact Tim Adamo.

N=4 super Yang-Mills can be formulated in twistor space via a twistor action. Feynman diagrams for this formulation in twistor space in an axial gauge are vastly simpler than their standard counterpart. They naturally express the underlying superconformal invariance and have very few terms for a given amplitude. They give a proof of the planar amplitude/Wilson loop correspondence diagram by diagram. They relate simply to recent concepts such as the amplituhedron and naturally lead to the loop integrand in dlog form and can be evaluated to give the expected polylogs without Feynman parameters.

This talk is part of the Mathematical Physics Seminar series.

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