112 citations · 410 across the 9 of their papers we have counts for
9 papers
Positive Amplitudes In The Amplituhedron
Nima Arkani-Hamed, Andrew Hodges, Jaroslav Trnka
The all-loop integrand for scattering amplitudes in planar N = 4 SYM is determined by an "amplitude form" with logarithmic singularities on the boundary of the amplituhedron. In th…
A simple formula for gravitational MHV amplitudes
Andrew Hodges
A simple formula is given for the n-field tree-level MHV gravitational amplitude, based on soft limit factors. It expresses the full S_n symmetry naturally, as a determinant of ele…
New expressions for gravitational scattering amplitudes
Andrew Hodges
New methods are introduced for the description and evaluation of tree-level gravitational scattering amplitudes. An N=7 super-symmetric recursion, free from spurious double poles,…
A Note on Polytopes for Scattering Amplitudes
Nima Arkani-Hamed, Jacob L. Bourjaily, Freddy Cachazo +2
In this note we continue the exploration of the polytope picture for scattering amplitudes, where amplitudes are associated with the volumes of polytopes in generalized momentum-tw…
The box integrals in momentum-twistor geometry
Andrew Hodges
An account is given of how the 'box integrals', as used for one-loop calculations in massless field theory, appear in momentum-twistor geometry. Particular attention is paid to the…
Eliminating spurious poles from gauge-theoretic amplitudes
Andrew Hodges
This note addresses the problem of spurious poles in gauge-theoretic scattering amplitudes. New twistor coordinates for the momenta are introduced, based on the concept of dual con…