Angular correlations and polarization in Z+jet production at the LHC
Abstract
Precision studies at the LHC increasingly require theoretical control over QCD radiation beyond fixed-order perturbation theory, particularly in final states characterised by large separations in rapidity. High-energy logarithms can generate corrections at the ten-percent level even for electroweak-scale observables, as recently observed in Higgs production, motivating their systematic inclusion in precision analyses. We investigate this regime through Drell−Yan plus jet production, with particular emphasis on Z-boson final states and their angular and polarisation structure. High-energy logarithms are resummed at next-to-leading logarithmic accuracy and consistently combined with NLO fixed-order information. Beyond inclusive rapidity and transverse-momentum spectra, the framework resolves the azimuthal harmonic content of the process, whose pattern is reshaped by the transition from leading- to next-to-leading-order emission dynamics. We further develop the JETHAD−DYnamis−POWHEG strategy towards realistic lepton-level predictions, retaining spin correlations, decay-angle information, and experimentally accessible kinematics. This programme establishes Z+jet production as a precision probe of high-energy QCD dynamics for Run~3 and the HL-LHC.
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BibTeX
@misc{celiberto2026angular,
title = {{Angular correlations and polarization in $Z$+jet production at the LHC}},
author = {Francesco Giovanni Celiberto and Francesca Lonigro},
howpublished = {arXiv},
year = {2026},
month = sep,
doi = {10.48550/arxiv.2609.01203},
eprint = {2609.01203},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2609.01203},
}
RIS
TY - UNPB
TI - Angular correlations and polarization in Z+jet production at the LHC
AU - Francesco Giovanni Celiberto
AU - Francesca Lonigro
PY - 2026
DA - 2026/09/01
PB - arXiv
DO - 10.48550/arxiv.2609.01203
UR - https://arxiv.org/abs/2609.01203
AB - Precision studies at the LHC increasingly require theoretical control over QCD radiation beyond fixed-order perturbation theory, particularly in final states characterised by large separations in rapidity. High-energy logarithms can generate corrections at the ten-percent level even for electroweak-scale observables, as recently observed in Higgs production, motivating their systematic inclusion in precision analyses. We investigate this regime through Drell−Yan plus jet production, with particular emphasis on Z-boson final states and their angular and polarisation structure. High-energy logarithms are resummed at next-to-leading logarithmic accuracy and consistently combined with NLO fixed-order information. Beyond inclusive rapidity and transverse-momentum spectra, the framework resolves the azimuthal harmonic content of the process, whose pattern is reshaped by the transition from leading- to next-to-leading-order emission dynamics. We further develop the JETHAD−DYnamis−POWHEG strategy towards realistic lepton-level predictions, retaining spin correlations, decay-angle information, and experimentally accessible kinematics. This programme establishes Z+jet production as a precision probe of high-energy QCD dynamics for Run~3 and the HL-LHC.
ER -