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arXiv · 1612.02708

Landau Singularities from the Amplituhedron

Tristan Dennen·Igor Prlina·Marcus Spradlin·Stefan Stanojevic·Anastasia Volovich
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Abstract

We propose a simple geometric algorithm for determining the complete set of branch points of amplitudes in planar N=4 super-Yang-Mills theory directly from the amplituhedron, without resorting to any particular representation in terms of local Feynman integrals. This represents a step towards translating integrands directly into integrals. In particular, the algorithm provides information about the symbol alphabets of general amplitudes. We illustrate the algorithm applied to the one- and two-loop MHV amplitudes.

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Tristan Dennen, Igor Prlina, Marcus Spradlin, Stefan Stanojevic, Anastasia Volovich. 2017-06-20. Landau Singularities from the Amplituhedron. https://doi.org/10.1007/jhep06(2017)152

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