Skip to main content

Research Repository

Advanced Search

The NNLO QCD corrections to Z boson production at large transverse momentum

Gehrmann-De Ridder, A.; Gehrmann, T.; Glover, E.W.N.; Huss, A.; Morgan, T.A.

The NNLO QCD corrections to Z boson production at large transverse momentum Thumbnail


Authors

A. Gehrmann-De Ridder

T. Gehrmann

A. Huss

T.A. Morgan



Abstract

The transverse momentum distribution of massive neutral vector bosons can be measured to high accuracy at hadron colliders. The transverse momentum is caused by a partonic recoil, and is determined by QCD dynamics. We compute the single and double-differential transverse momentum distributions for fully inclusive Z/γ∗ production including leptonic decay to next-to-next-to-leading order (NNLO) in perturbative QCD. We also compute the same distributions normalised to the cross sections for inclusive Z/γ∗ production, i.e. integrated over the transverse momentum of the lepton pair. We compare our predictions for the fiducial cross sections to the 8 TeV data set from the ATLAS and CMS collaborations, which both observed a tension between data and NLO theory predictions, using the experimental cuts and binning. We find that the inclusion of the NNLO QCD effects does not fully resolve the tension with the data for the unnormalised pZT distribution. However, we observe that normalising the NNLO Z-boson transverse momentum distribution by the NNLO Drell-Yan cross section substantially improves the agreement between experimental data and theory, and opens the way for precision QCD studies of this observable.

Citation

Gehrmann-De Ridder, A., Gehrmann, T., Glover, E., Huss, A., & Morgan, T. (2016). The NNLO QCD corrections to Z boson production at large transverse momentum. Journal of High Energy Physics, 2016(7), Article 133. https://doi.org/10.1007/jhep07%282016%29133

Journal Article Type Article
Acceptance Date Jul 19, 2016
Online Publication Date Jul 27, 2016
Publication Date Jul 27, 2016
Deposit Date Aug 1, 2016
Publicly Available Date Mar 28, 2024
Journal Journal of High Energy Physics
Print ISSN 1126-6708
Publisher Scuola Internazionale Superiore di Studi Avanzati (SISSA)
Peer Reviewed Peer Reviewed
Volume 2016
Issue 7
Article Number 133
DOI https://doi.org/10.1007/jhep07%282016%29133
Related Public URLs https://arxiv.org/abs/1605.04295

Files

Published Journal Article (702 Kb)
PDF

Publisher Licence URL
http://creativecommons.org/licenses/by/4.0/

Copyright Statement
Open Access, © The Author(s) 2016 Article funded by SCOAP3. This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.





You might also like



Downloadable Citations