From the 1 of 9 linked papers with an AI index.
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Infrared singularities of multileg amplitudes with a massive particle at three loops
Einan Gardi, Zehao Zhu
We determine the complete three-loop QCD soft anomalous dimension for multileg amplitudes involving a single massive coloured particle and any number of massless ones. This is achi…
Computing the soft anomalous dimension with massless particles using the method of regions
Einan Gardi, Zehao Zhu
It is well known that soft singularities of massless amplitudes are significantly simpler than those of massive ones. However, the computation of the soft anomalous dimension (AD)…
Infrared singularities and the collinear limits of multi-leg scattering amplitudes
Claude Duhr, Einan Gardi, Sebastian Jaskiewicz +2
Scattering amplitudes are expected to admit a factorised structure in special kinematic limits, such as the Regge, soft and collinear limits. However, less is known about the preci…
Regge factorization of tree-level QCD amplitudes using a minimal set of lightcone variables
Emmet P. Byrne, Vittorio Del Duca, Einan Gardi +2
We represent the multi-leg tree-level amplitudes of quarks and gluons using a minimal set of lightcone variables, which incorporate all on-shell and momentum conservation condition…