156 citations · 1.2k across the 16 of their papers we have counts for
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Leading Singularities of the Two-Loop Six-Particle MHV Amplitude
Freddy Cachazo, Marcus Spradlin, Anastasia Volovich
We use the leading singularity technique to determine the planar six-particle two-loop MHV amplitude in N=4 super Yang-Mills in terms of a simple basis of integrals. Our result for…
Sharpening The Leading Singularity
Freddy Cachazo
We show how studying leading singularities of Feynman diagrams, when all momenta are complex, gives a simple way of writing multi-loop and multi-particle scattering amplitudes in N…
On the structure of scattering amplitudes in N=4 super Yang-Mills and N=8 supergravity
Freddy Cachazo, David Skinner
Exploiting singularities in Feynman integrals to get information about scattering amplitudes has been particularly useful at one-loop in theories where no triangles or bubbles appe…
Four-Loop Collinear Anomalous Dimension in N = 4 Yang-Mills Theory
Freddy Cachazo, Marcus Spradlin, Anastasia Volovich
We report a calculation in N = 4 Yang-Mills of the four-loop term g^4 in the collinear anomalous dimension g(lambda) which governs the universal subleading infrared structure of gl…
Consistency Conditions on the S-Matrix of Massless Particles
Paolo Benincasa, Freddy Cachazo
We introduce a set of consistency conditions on the S-matrix of theories of massless particles of arbitrary spin in four-dimensional Minkowski space-time. We find that in most case…
Taming Tree Amplitudes In General Relativity
Paolo Benincasa, Camille Boucher-Veronneau, Freddy Cachazo
We give a proof of BCFW recursion relations for all tree-level amplitudes of gravitons in General Relativity. The proof follows the same basic steps as in the BCFW construction and…