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hep-th2022★ 13 cited
Internal boundaries of the loop amplituhedron
Gabriele Dian, Paul Heslop, Alastair Stewart
The strict definition of positive geometry implies that all maximal residues of its canonical form are . We observe, however, that the loop integrand of the amplitude in pla…
hep-th2018★ 7 cited
The twistor Wilson loop and the amplituhedron
Paul Heslop, Alastair Stewart
The amplituhedron provides a beautiful description of perturbative superamplitude integrands in N=4 SYM in terms of purely geometric objects, generalisations of polytopes. On the o…