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NNLO QCD predictions for Z-boson production in association with a charm jet within the LHCb fiducial region

Gauld, R.; Gehrmann–De Ridder, A.; Glover, E.W.N.; Huss, A.; Rodriguez Garcia, A.; Stagnitto, G.

NNLO QCD predictions for Z-boson production in association with a charm jet within the LHCb fiducial region Thumbnail


Authors

R. Gauld

A. Gehrmann–De Ridder

A. Huss

A. Rodriguez Garcia

G. Stagnitto



Abstract

We compute next-to-next-to-leading order (NNLO) QCD corrections to neutral vector boson production in association with a charm jet at the LHC. This process is studied in the forward kinematics at s√=13 TeV, which may provide valuable constraints on the intrinsic charm component of the proton. A comparison is performed between fixed order and NLO predictions matched to a parton shower showing mutual compatibility within the respective uncertainties. NNLO corrections typically lead to a reduction of theoretical uncertainties by a factor of two and the perturbative convergence is further improved through the introduction of a theory-inspired constraint on the transverse momentum of the vector boson plus jet system. A comparison between these predictions with data will require an alignment of a flavour-tagging procedure in theory and experiment that is infrared and collinear safe.

Citation

Gauld, R., Gehrmann–De Ridder, A., Glover, E., Huss, A., Rodriguez Garcia, A., & Stagnitto, G. (2023). NNLO QCD predictions for Z-boson production in association with a charm jet within the LHCb fiducial region. The European Physical Journal C, 83(4), Article 336. https://doi.org/10.1140/epjc/s10052-023-11530-x

Journal Article Type Article
Acceptance Date Apr 18, 2023
Online Publication Date Apr 27, 2023
Publication Date 2023-04
Deposit Date Apr 28, 2023
Publicly Available Date Apr 28, 2023
Journal The European Physical Journal C
Print ISSN 1434-6044
Electronic ISSN 1434-6052
Publisher SpringerOpen
Peer Reviewed Peer Reviewed
Volume 83
Issue 4
Article Number 336
DOI https://doi.org/10.1140/epjc/s10052-023-11530-x
Public URL https://durham-repository.worktribe.com/output/1176282

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

Copyright Statement
This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.






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