AI Article Synopsis
- The study calculates next-to-next-to-leading order (NNLO) QCD corrections for producing neutral vector bosons with a charm jet at the LHC, focusing on forward kinematics at TeV energies.
- NNLO corrections help reduce theoretical uncertainties by about half and enhance the accuracy of predictions by applying a constraint on the transverse momentum of the vector boson plus jet system.
- For effective comparison of theoretical predictions with experimental data, it’s crucial to align the flavor-tagging methods used in both theory and experiments to ensure they are infrared and collinear safe.
Article 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 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.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10140110 | PMC |
| http://dx.doi.org/10.1140/epjc/s10052-023-11530-x | DOI Listing |
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