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Color Decompositions of the Two Loop Amplitudes of Yang-Mills theory
David C. Dunbar
The color structure of two-loop gluon amplitudes is examined both from a color trace basis expansion and an alternative based upon structure constants. We use use this as a vehicle…
The Seven-Point Two-Loop Full-Color All-Plus Helicity Yang-Mills Amplitude
Adam R. Dalgleish, David C. Dunbar, Warren B. Perkins +1
The seven-gluon two-loop full-color Yang-Mills amplitude is presented in a compact analytic form where we use the methods of four-dimensional unitarity cuts to obtain the polylogar…
The Full Color Two-Loop Six-Gluon All-Plus Helicity Amplitude
Adam R. Dalgleish, David C. Dunbar, Warren B. Perkins +1
We present the full color two-loop six-point all-plus Yang-Mills amplitude in compact analytic form. The computation uses four dimensional unitarity and augmented recursion.
An -point QCD two-loop amplitude
David C. Dunbar, Warren B. Perkins, Joseph M. W. Strong
We present an explicit expression for a particular -gluon two loop scattering partial amplitude. Specifically we present an analytic form for the single trace independent…
Color Dressed Unitarity and Recursion for Yang-Mills Two-Loop All-Plus Amplitudes
David C. Dunbar, John H. Godwin, Warren B. Perkins +1
We present a direct computation of the full color two-loop five-point all-plus Yang-Mills amplitude using four dimensional unitarity and recursion. We present the amplitu…
Analytic results for two-loop Yang-Mills
David C. Dunbar, John H Godwin, Guy R. Jehu +1
Recent Developments in computing very specific helicity amplitudes in two loop QCD are presented. The techniques focus upon the singular structure of the amplitude rather than on a…