303 citations · 1.7k across the 28 of their papers we have counts for
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Multi-Quark Colour Decompositions from Unitarity
Alexander Ochirov, Ben Page
Any loop QCD amplitude at full colour is constructed from kinematic and gauge-group building blocks. In a unitarity-based on-shell framework, both objects can be reconstructed from…
Helicity amplitudes for QCD with massive quarks
Alexander Ochirov
The novel massive spinor-helicity formalism of Arkani-Hamed, Huang and Huang provides an elegant way to calculate scattering amplitudes in quantum chromodynamics for arbitrary quar…
Full Colour for Loop Amplitudes in Yang-Mills Theory
Alexander Ochirov, Ben Page
We present a general method to account for full colour dependence Yang-Mills amplitudes at loop level. The method fits most naturally into the framework of multi-loop integrand red…
A Complete Two-Loop, Five-Gluon Helicity Amplitude in Yang-Mills Theory
Simon Badger, Gustav Mogull, Alexander Ochirov +1
We compute the integrand of the full-colour, two-loop, five-gluon scattering amplitude in pure Yang-Mills theory with all helicities positive, using generalized unitarity cuts. Tre…
Color-Kinematics Duality for QCD Amplitudes
Henrik Johansson, Alexander Ochirov
We show that color-kinematics duality is present in tree-level amplitudes of quantum chromodynamics with massive flavored quarks. Starting with the color structure of QCD, we work…