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Showing 1 to 2 of 2 for “"ambitwistor string"”.
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Études in Ambitwistor Strings - Exploring new models, higher loops and curved backgrounds
… the scattering equations, CHY formalism and the ambitwistor string. We discuss one of the striking simplifications that occur upon restricting to four spacetime dimensions, namely that the scattering equations with $n$ particles decompose into sectors, graded by an integer $1 \leq d \leq n-3$. It …
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Worldsheet methods for perturbative quantum field theory
… parts. The first part concerns the study of the ambitwistor string and the scattering equations, while the second concerns the interplay of the symmetries of the asymptotic null boundary of Minkowski space, called $\scri$, and scattering amplitudes. The first part begins with a review of the CHY …