Non-Chiral S-Matrix of N=4 Super Yang-Mills

TL;DR

This paper constructs a non-chiral S-matrix for N=4 super Yang-Mills using a non-chiral superspace, revealing new symmetry representations and extending to six-dimensional frameworks.

Contribution

It introduces a non-chiral superspace formulation for N=4 super Yang-Mills and derives non-chiral representations of scattering amplitudes, connecting to six-dimensional theories.

Findings

Derived non-chiral representations of five-point and n-point amplitudes.

Demonstrated the lift of the formulation to six dimensions.

Connected four-dimensional massive amplitudes to six-dimensional theories.

Abstract

We discuss the construction of non-chiral S-matrix of four-dimensional N=4 super Yang-Mills using a non-chiral superspace. This construction utilizes the non-chiral representation of dual superconformal symmetry, which is the natural representation from the point of view of the six-dimensional parent theory. The superspace in discussion is projective superspace constructed by Hatsuda and Siegel, and is based on a half coset U(2,2|4)/U(1,1|2)^2_+. We obtain the non-chiral representation of the five-point and general n-point MHV and anti-MHV amplitude. The non-chiral formulation can be straightforwardly lifted to six dimensions, which is equivalent to massive amplitudes in four dimensions.