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 Web site:||https://doi.org/10.1016/j.physletb.2022.137111|
|Publisher statement:||© 2022 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). 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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