40 citations · 133 across the 14 of their papers we have counts for
14 papers
The Two-Loop Lipatov Vertex in QCD
Samuel Abreu, Giuseppe De Laurentis, Giulio Falcioni +3
High-energy factorization of 2 -> 2 amplitudes in QCD has been recently pushed to the next-to-next-to-leading logarithmic order by determining the three-loop gluon Regge trajectory…
Regge poles and cuts and the Lipatov vertex
Samuel Abreu, Giulio Falcioni, Einan Gardi +2
Scattering amplitudes in the high-energy limit can be described in terms of their singularity structure in the complex angular momentum plane, consisting of Regge poles and cuts. I…
Refactorisation and Subtraction
Lorenzo Magnea, Calum Milloy, Chiara Signorile-Signorile +1
Infrared subtraction algorithms beyond next-to-leading order necessitate the analysis of multiple infrared limits of scattering amplitudes, where several particles sequentially bec…
Strongly-ordered infrared counterterms from factorisation
Lorenzo Magnea, Calum Milloy, Chiara Signorile-Signorile +1
In the context of infrared subtraction algorithms beyond next-to-leading order, it becomes necessary to consider multiple infrared limits of scattering amplitudes, in which several…
A new method for calculating the soft anomalous dimension matrix for massive particle scattering
Johannes M. Henn, Calum Milloy, Kai Yan
The general structure of infrared divergences in the scattering of massive particles is captured by the soft anomalous dimension matrix. The latter can be computed from a correlati…
Strongly-ordered infrared limits for subtraction counterterms from factorisation
Lorenzo Magnea, Calum Milloy, Chiara Signorile-Signorile +2
After a brief introduction to the problem of subtraction of infrared divergences for high-order collider observables, we present a preliminary study of strongly-ordered soft and co…
High-energy limit of scattering amplitudes at NNLL
Calum Milloy, Giulio Falcioni, Einan Gardi +2
The high-energy limit of scattering amplitudes offers an excellent setting to explore the universal features of gauge theories. At Leading Logarithmic (LL) accuracy the pa…
Disentangling the Regge cut and Regge pole in perturbative QCD
Giulio Falcioni, Einan Gardi, Niamh Maher +2
The high-energy limit of gauge-theory amplitudes features both a Regge pole and Regge cuts. We show how to disentangle these, and hence how to determine the Regge trajectory beyond…
Two-parton scattering in the high-energy limit: climbing two- and three-Reggeon ladders
Leonardo Vernazza, Giulio Falcioni, Einan Gardi +2
We review recent progress on the calculation of scattering amplitudes in the high-energy limit. We start by illustrating the shockwave formalism, which allows one to calculate ampl…
Scattering amplitudes in the Regge limit and the soft anomalous dimension through four loops
Giulio Falcioni, Einan Gardi, Niamh Maher +2
Using rapidity evolution equations we study two-to-two gauge-theory scattering amplitudes in the Regge limit. We carry out explicit computations at next-to-next-to-leading logarith…
The Soft Anomalous Dimension at four loops in the Regge Limit
Niamh Maher, Giulio Falcioni, Einan Gardi +2
The soft anomalous dimension governs the infrared divergences of scattering amplitudes in general kinematics to all orders in perturbation theory. By comparing the recent Regge-lim…
Climbing three-Reggeon ladders: four-loop amplitudes in the high-energy limit in full colour
Giulio Falcioni, Einan Gardi, Calum Milloy +1
Using an iterative solution of rapidity evolution equations, we compute partonic gauge theory amplitudes at four loops in full colour up to the Next-to-Next-to-Leading Log…
Wilson-line geometries and the relation between IR singularities of form factors and the large-x limit of DGLAP splitting functions
Calum Milloy, Giulio Falcioni, Einan Gardi
We discuss the relation between the infrared singularities of on-shell partonic form factors and parton distribution functions (PDFs) near the elastic limit, through their factoris…
Relating amplitude and PDF factorisation through Wilson-line geometries
Giulio Falcioni, Einan Gardi, Calum Milloy
We study long-distance singularities governing different physical quantities involving massless partons in perturbative QCD by using factorisation in terms of Wilson-line correlato…