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2018

Amplitudes from superconformal Ward identities

Chicherin, Dmitry, Henn, Johannes M., Sokatchev, Emery

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We consider finite superamplitudes of N=1 matter, and use superconformal symmetry to derive powerful first-order differential equations for them.

Due to on-shell collinear singularities, the Ward identities have an anomaly, which is obtained from lower-loop information.
We show that in the five-particle case, the solution to the equations is uniquely fixed by the expected analytic behavior.
We apply the method to a non-planar two-loop five-particle integral.

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