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arXiv · 1804.03571

Amplitudes from superconformal Ward identities

Dmitry Chicherin·Johannes M. Henn·Emery Sokatchev
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Abstract

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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Dmitry Chicherin, Johannes M. Henn, Emery Sokatchev. 2018-04-10. Amplitudes from superconformal Ward identities. https://doi.org/10.1103/physrevlett.121.021602

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