Cross-section measurements for the production of a Z boson in association with high-transverse-momentum jets in pp collisions at √s = 13 TeV with the ATLAS detector

ATLAS Collaboration, Phil Allport, Adrien Auriol, Panagiotis Bellos, Gareth Bird, Juraj Bracinik, David Charlton, Andrew Chisholm, Tobias Fitschen, Patrick Freeman, William George, Laura Gonella, Chris Hawkes, Jacob Kempster, Mihaela Marinescu, Antonio Manuel Mendes Jacques Da Costa, Thomas Neep, Paul Newman, Konstantinos Nikolopoulos, Júlia Cardoso SilvaAlexis Stampekis, Jurgen Thomas, Paul Thompson, Gov Virdee, Robert Ward, Alan Watson, Miriam Watson

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Abstract

Cross-section measurements for a Z boson produced in association with high-transverse-momentum jets (pT≥100 GeV) and decaying into a charged-lepton pair (e+e+μ) are presented. The measurements are performed using proton-proton collisions at √s = 13 TeV corresponding to an integrated luminosity of 139 fb−1 collected by the ATLAS experiment at the LHC. Measurements of angular correlations between the Z boson and the closest jet are performed in events with at least one jet with pT≥500 GeV. Event topologies of particular interest are the collinear emission of a Z boson in dijet events and a boosted Z boson recoiling against a jet. Fiducial cross sections are compared with state-of-the-art theoretical predictions. The data are found to agree with next-to-next-to-leading-order predictions by NNLOjet and with the next-to-leading-order multi-leg generators MadGraph5_aMC@NLO and Sherpa.
Original languageEnglish
Article number80
Number of pages52
JournalJHEP
Volume2023
Issue number6
DOIs
Publication statusPublished - 14 Jun 2023

Keywords

  • Electroweak Interaction
  • Hadron-Hadron Scattering

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