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Transverse momentum distributions in low-mass Drell-Yan lepton pair production at NNLO QCD

Gauld, R. and Gehrmann–De Ridder, A. and Gehrmann, T. and Glover, E.W.N. and Huss, A. and Majer, I. and Rodriguez Garcia, A. (2022) 'Transverse momentum distributions in low-mass Drell-Yan lepton pair production at NNLO QCD.', Physics letters B., 829 . p. 137111.


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.

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Publisher statement:© 2022 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license ( Funded by SCOAP3.
Date accepted:13 April 2022
Date deposited:27 April 2022
Date of first online publication:26 April 2022
Date first made open access:27 April 2022

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