Phenomenology of the Z-boson plus jet process at NNLO
Radja Boughezal, Xiaohui Liu, Frank Petriello
TL;DR
This paper provides a comprehensive NNLO QCD analysis of Z-boson plus jet production at the LHC, including cross sections, distributions, and PDF impact, reducing theoretical uncertainties for better experimental comparison.
Contribution
It offers the first detailed NNLO phenomenological predictions for Z+jet production at 8 and 13 TeV, including the effects of different PDFs and reduced scale uncertainties.
Findings
NNLO corrections significantly reduce scale uncertainties.
Differential distributions help discriminate between PDF sets.
Total and transverse momentum distributions are key for experimental analysis.
Abstract
We present a detailed phenomenological study of Z-boson production in association with a jet through next-to-next-to-leading order (NNLO) in perturbative QCD. Fiducial cross sections and differential distributions for both 8 TeV and 13 TeV LHC collisions are presented. We study the impact of different parton distribution functions (PDFs) on predictions for the Z+jet process. Upon inclusion of the NNLO corrections, the residual scale uncertainty is reduced such that both the total rate and the transverse momentum distributions can be used to discriminate between various PDF sets.
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