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ATLAS_2017_I1514251_MU

Z plus jets at 13 TeV, muon channel
Experiment: ATLAS (LHC)
Inspire ID: 1514251
Status: VALIDATED
Authors:
  • Gavin Hesketh
References: Beams: p+ p+
Beam energies: (6500.0, 6500.0) GeV
Run details:
  • pp -> Z(->mumu) + jets at 13 TeV

Measurements of the production cross section of a $Z$ boson in association with jets in proton-proton collisions at i $\sqrt{s}=13$ 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 $p_\text{T}>30$ 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.