358 citations · 3.9k across the 93 of their papers we have counts for
101 papers
Hidden Region Finder: asymptotic expansions of Feynman integrals in Minkowski space
Einan Gardi
The Method of Regions is a systematic way to derive asymptotic expansions of Feynman integrals. For Euclidean integrals there is a well-established algorithm to determine the compl…
Infrared singularities and the collinear limits of multi-leg scattering amplitudes
Sebastian Jaskiewicz
Scattering amplitudes admit a factorised structure in special kinematic limits, such as the soft and collinear limits. In this work, we investigate the multi-particle collinear lim…
Spacelike-Collinear Scattering by the Method of Regions
Wen Chen, Einan Gardi, Rourou Ma +3
We study the spacelike-collinear limit of gauge-theory scattering amplitudes using the Method of Regions. The corresponding splitting amplitude violates strict collinear factorisat…
Progress on the soft anomalous dimension in QCD
Einan Gardi, Zehao Zhu
We review the state-of-the-art knowledge of IR singularities in multileg QCD amplitudes, identifying the key reasons for the remarkable simplicity of the soft anomalous dimension.…
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)…