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A factorization approach to next-to-leading-power threshold logarithms
A bstractThreshold logarithms become dominant in partonic cross sections when the selected final state forces gluon radiation to be soft or collinear. Such radiation factorizes at the level ofExpand
Non-abelian factorisation for next-to-leading-power threshold logarithms
A bstractSoft and collinear radiation is responsible for large corrections to many hadronic cross sections, near thresholds for the production of heavy final states. There is much interest inExpand
The method of regions and next-to-soft corrections in Drell–Yan production
We perform a case study of the behaviour of gluon radiation beyond the soft approximation, using as an example the Drell–Yan production cross section at NNLO. We draw a careful distinction betweenExpand
Universal structure of the Drell-Yan process beyond threshold
We review recent results in the investigation of threshold logarithms at next-to-leading power considering the case of the Drell-Yan cross section at NNLO. We first show how they can be reproducedExpand
Next-to-soft factorization and unitarity in Drell-Yan processes
The Drell-Yan process is considered as a case study to investigate two different aspects of perturbative Quantum Chromodynamics: the search for a next-to-soft factorization formalism to organizeExpand
Unitarity methods for Mellin moments of Drell-Yan cross sections
A bstractWe develop a method for computing Mellin moments of single inclusive cross sections such as Drell-Yan production directly from forward scattering diagrams, by invoking unitarity in the formExpand
Asymptotic dynamics on the worldline for spinning particles.
There has been a renewed interest in the description of dressed asymptotic states a la Faddeev-Kulish. In this regard, a worldline representation for asymptotic states dressed by radiation atExpand
Diagrammatic resummation of leading-logarithmic threshold effects at next-to-leading power
Perturbative cross-sections in QCD are beset by logarithms of kinematic invariants, whose arguments vanish when heavy particles are produced near threshold. Contributions of this type often need toExpand
On non-abelian next-to-leading-power threshold logarithms
We present recent results in an ongoing program to construct a resummation formalism for threshold logarithms at next-to-leading power (NLP) in the threshold expansion. We discuss a factorisedExpand