Corpus ID: 237581326

Threshold resummation of new partonic channels at next-to-leading power

  title={Threshold resummation of new partonic channels at next-to-leading power},
  author={Melissa van Beekveld and Leonardo Vernazza and Chris D. White},
Collider observables involving heavy particles are subject to large logarithmic terms near threshold, which must be summed to all orders in perturbation theory to obtain sensible results. Relatively recently, this resummation has been extended to next-to-leading power in the threshold variable, using a variety of approaches. In this paper, we consider partonic channels that turn on only at next-to-leading power, and show that it is possible to resum leading logarithms using well-established… Expand

Figures from this paper


Diagrammatic resummation of leading-logarithmic threshold effects at next-to-leading power
Abstract 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 typeExpand
Universality of next-to-leading power threshold effects for colourless final states in hadronic collisions
A bstractWe consider the production of an arbitrary number of colour-singlet particles near partonic threshold, and show that next-to-leading order cross sections for this class of processes have aExpand
Next-to-leading power threshold effects for inclusive and exclusive processes with final state jets
It is well known that cross-sections in perturbative QCD receive large corrections from soft and collinear radiation, which can be resummed to all orders in the coupling. Whether or not the universalExpand
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
On next-to-leading power threshold corrections in Drell-Yan production at N3LO
A bstractThe cross-section for Drell-Yan production of a vector boson has been previously calculated at next-to-next-to-leading order, supplemented by enhanced logarithmic terms associated with theExpand
Next-to-eikonal corrections to soft gluon radiation: a diagrammatic approach
We consider the problem of soft gluon resummation for gauge theory amplitudes and cross sections, at next-to-eikonal order, using a Feynman diagram approach. At the amplitude level, we proveExpand
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
Next-to-leading power threshold effects for resummed prompt photon production
We assess and compare different methods for including leading threshold logarithms at next-to-leading-power in prompt photon production at hadron colliders, for both the direct and partonExpand
Next-to-leading power threshold corrections for finite order and resummed colour-singlet cross sections
We study next-to-leading-power (NLP) threshold corrections in colour-singlet production processes, with particular emphasis on Drell-Yan (DY) and single-Higgs production. We assess the quality of theExpand
Soft gluon radiation in Higgs boson production at the LHC
We examine the contributions of soft gluons to the Higgs production cross section at the LHC in the Standard Model and its minimal supersymmetric extension. The soft gluon radiation effects of thisExpand