Cross-section measurements for the production of a Z boson in association with high-transverse-momentum jets in pp collisions at CMS = 13 TeV with the ATLAS detector
Abstrakt
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+μ-) are presented. The measurements are performed using proton-proton collisions at p s = 13TeV 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-nextto- leading-order predictions by NNLOjet and with the next-to-leading-order multi-leg generators MadGraph5_aMC@NLO and Sherpa.