2014

Scattering Equations and Matrices: From Einstein To Yang-Mills, DBI and NLSM

Cachazo, Freddy, He, Song, Yuan, Ellis Ye

Understand

The tree-level S-matrix of Einstein's theory is known to have a representation as an integral over the moduli space of punctured spheres localized to the solutions of the scattering equations.

In this paper we introduce three operations that can be applied on the integrand in order to produce other theories.
Starting in $d+M$ dimensions we use dimensional reduction to construct Einstein-Maxwell with gauge group $U(1)^M$.
The second operation turns gravitons into gluons and we call it "squeezing".

Built on

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