Twistor fishnets

Four-dimensional conformal fishnet theory is an integrable scalar theory which arises as a double scaling limit of $γ$-deformed maximally supersymmetric Yang-Mills. We give a perturbative reformulation of $γ$-deformed super-Yang-Mills theory in twistor space, and implement the double scaling limit to obtain a twistor description of conformal fishnet theory. The conformal fishnet theory retains an abelian gauge symmetry on twistor space which is absent in space-time, allowing us to obtain cohomological formulae for scattering amplitudes that manifest conformal invariance. We study various classes of scattering amplitudes in twistor space with this formalism.

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