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Simplifying the non-planar sector of gauge theory (Nonplanar)
Start date: 01 Oct 2014, End date: 30 Sep 2018 PROJECT  FINISHED 

In recent years, there has been considerable progress on our understanding of scattering amplitudes in the planar limit of gauge theory. The non-planar parts of the theory have seen much less progress. However, some new ideas indicate that information from the planar sector is sufficient to determine properties of the full, non-planar theory when combined with a new class of Jacobi identities. As an example, it is possible to construct the integrand of the complete, four-loop four-point scattering amplitude in maximally supersymmetric gauge theory in four dimensions using only planar data, and the solution of a linear system of Jacobi identities.The aim of this proposal is to establish a research group at the University of Edinburgh which will investigate relations between the planar and non-planar sectors.
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