Aaboud, M.Aad, G.Abbott, B.Abdallah, J.Abdinov, O.Abeloos, B.Aben, R.Izen, Joseph M.Kurth, Matthew G.Leyton, MichaelMeirose, BernhardReeves, KendallATLAS Collaboration2018-05-152018-05-152017-05-31http://hdl.handle.net/10735.1/5709Measurements of the production cross section of a Z boson in association with jets in proton–proton collisions at √s̅ = 13 TeV are presented, using data corresponding to an integrated luminosity of 3.16 fb⁻¹ collected by the ATLAS experiment at the CERN Large Hadron Collider in 2015. Inclusive and differential cross sections are measured for events containing a Z boson decaying to electrons or muons and produced in association with up to seven jets with p_T > 30 GeV and |y| < 2.5. Predictions from different Monte Carlo generators based on leading-order and next-to-leading-order matrix elements for up to two additional partons interfaced with parton shower and fixed-order predictions at next-to-leading order and next-to-next-to-leading order are compared with the measured cross sections. Good agreement within the uncertainties is observed for most of the modelled quantities, in particular with the generators which use next-to-leading-order matrix elements and the more recent next-to-next-to-leading-order fixed-order predictions. © 2017, CERN for the benefit of the ATLAS collaboration.CC BY 4.0 (Attribution)©2017 CERN for the benefit of the ATLAS collaboration.http://creativecommons.org/licenses/by/4.0/Z bosonsJets (Nuclear physics)Proton-proton interactionsLuminescenceTransverse momentumMonte Carlo methodarticleAaboud, M., G. Aad, B. Abbott, J. Abdallah, et al. 2017. "Measurements of the production cross section of a Z boson in association with jets in pp collisions at √s=13 TeV with the ATLAS detector." European Physical Journal C 77(6), doi:10.1140/epjc/s10052-017-4900-z776