312 citations · 576 across the 4 of their papers we have counts for
4 papers
Calculating gluon one-loop amplitudes numerically
Jan-Christopher Winter, Walter T. Giele
This note reports on an independent implementation of calculating one-loop amplitudes semi-numerically using generalized unitarity techniques. The algorithm implemented in form of…
A Numerical Unitarity Formalism for One-Loop Amplitudes
R. Keith Ellis, Walter T. Giele, Zoltan Kunszt
The unitarity method for calculating one-loop amplitudes provides algorithms of polynomial complexity. This is primarily beneficial for the computation of multi-leg one loop amplit…
Full one-loop amplitudes from tree amplitudes
Walter T. Giele, Zoltan Kunszt, Kirill Melnikov
We establish an efficient polynomial-complexity algorithm for one-loop calculations, based on generalized -dimensional unitarity. It allows automated computations of both cut-co…
A Numerical Unitarity Formalism for Evaluating One-Loop Amplitudes
R. K. Ellis, W. T. Giele, Z. Kunszt
Recent progress in unitarity techniques for one-loop scattering amplitudes makes a numerical implementation of this method possible. We present a 4-dimensional unitarity method for…