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.

doi:10.1140/epjc/s10052-023-11530-x

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.

Authors

R. Gauld

A. Gehrmann–De Ridder

Professor Nigel Glover e.w.n.glover@durham.ac.uk
Professor

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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