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From Feynman diagrams to the amplituhedron: a gentle review
Shounak De, Dmitrii Pavlov, Marcus Spradlin +1
In this article we review, for a mathematical audience, the computation of (tree-level) scattering amplitudes in Yang-Mills theory in detail, in order to bridge the gap in understa…
Surfaceology for Colored Yukawa Theory
Shounak De, Andrzej Pokraka, Marcos Skowronek +2
Arkani-Hamed and collaborators have recently shown that scattering amplitudes for colored theories can be expressed as integrals over combinatorial objects simply constructed from…
On Unitarity of Bespoke Amplitudes
Rishabh Bhardwaj, Marcus Spradlin, Anastasia Volovich +1
We use partial wave unitarity to constrain various bespoke four-point amplitudes. We start by constructing bespoke generalizations of the type I superstring amplitude, which we sho…
Five-dimensional spinor helicity for all masses and spins
Andrzej Pokraka, Smita Rajan, Lecheng Ren +2
We develop a spinor helicity formalism for five-dimensional scattering amplitudes of any mass and spin configuration. While five-dimensional spinor helicity variables have been pre…