QCD predictions for vector boson plus hadron production at the LHC

The identifcation of a hadron in the fnal state of hadron-collider events that feature a leptonically decaying vector boson can provide essential information on the parton content of the colliding protons. Moreover, the study of hadrons inside jets can provide deeper insights into the fragmentation dynamics. We provide theoretical predictions for specifc observables involving either the production of a Z boson in association with light charged hadrons inside a jet or the production of a W boson together with a charmed hadron. We present results for various fragmentation functions and compare our predictions with measurements by LHCb and ATLAS at √ s = 13 TeV. Our predictions are obtained using the antenna subtraction formalism which has been extended to cope with infrared singularities associated to the fragmentation processes in a hadron-collider environment at NLO accuracy.

Publication Details

Journal
Repository for Publications and Research Data (ETH Zurich)
Published
2024-10-01
DOI
https://doi.org/10.3929/ethz-b-000700157
Primary Topic
Particle physics theoretical and experimental studies
Type
article
Field-Weighted Citation Impact
0.00
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article

QCD predictions for vector boson plus hadron production at the LHC

Repository for Publications and Research Data (ETH Zurich)
Particle physics theoretical and experimental studies
article

QCD predictions for vector boson plus hadron production at the LHC

article en

Abstract

The identifcation of a hadron in the fnal state of hadron-collider events that feature a leptonically decaying vector boson can provide essential information on the parton content of the colliding protons. Moreover, the study of hadrons inside jets can provide deeper insights into the fragmentation dynamics. We provide theoretical predictions for specifc observables involving either the production of a Z boson in association with light charged hadrons inside a jet or the production of a W boson together with a charmed hadron. We present results for various fragmentation functions and compare our predictions with measurements by LHCb and ATLAS at √ s = 13 TeV. Our predictions are obtained using the antenna subtraction formalism which has been extended to cope with infrared singularities associated to the fragmentation processes in a hadron-collider environment at NLO accuracy.

Repository for Publications and Research Data (ETH Zurich)
Openalex Percentile: Top 88%
Particle physics theoretical and experimental studies
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