N=4 super-Yang-Mills in LHC superspace. Part II: Non-chiral correlation functions
2016
We study the multipoint super-correlation functions of the full non-chiral
stress-tensor multiplet in N=4 super-Yang-Mills theory in the Born
approximation. We derive effective supergraph Feynman rules for them.
Surprisingly, the Feynman rules for the non-chiral correlators differ only
slightly from those for the chiral correlators. We rely on the formulation of
the theory in Lorentz harmonic chiral (LHC) superspace elaborated in the twin
paper \cite{PartI}. In this approach only the chiral half of the supersymmetry
is manifest. The other half is realized by nonlinear and nonlocal
transformations of the LHC superfields. However, at Born level only the simple
linear part of the transformations is relevant. It corresponds to effectively
working in the self-dual sector of the theory. Our method is also applicable to
a wider class of supermultiplets like all the half-BPS operators and the
Konishi multiplet.
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