Transverse momentum distributions in low-mass Drell-Yan lepton pair production at NNLO QCD
Abstract
The production of lepton pairs at low invariant mass and finite transverse momentum resolves QCD dynamics at the boundary between the perturbative and non-perturbative domains. We investigate the impact of NNLO QCD corrections on these observables at energies corresponding to the BNL RHIC collider and to fixed-target experiments. Satisfactory perturbative convergence is observed in both cases. Only the collider data are found to be well-described by perturbative QCD, thus indicating the importance of non-perturbative effects in lepton-pair transverse momentum distributions at fixed target energies. Show more
Permanent link
https://doi.org/10.3929/ethz-b-000550931Publication status
publishedExternal links
Journal / series
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy PhysicsVolume
Pages / Article No.
Publisher
ElsevierOrganisational unit
08833 - Gehrmann-De Ridder, Aude (Tit.-Prof.)
Funding
197130 - Computing flavour-sensitive observables at high energy colliders (SNF)
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