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

ATLAS Collaboration

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Abstract

Measurements of the production cross section of a   Z boson in association with jets in proton–proton collisions at   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 pT>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.

Original languageEnglish
Article number361
Number of pages31
JournalEuropean Physical Journal C
Volume77
Issue number6
DOIs
Publication statusPublished - 31 May 2017

Bibliographical note

47 pages in total, author list starting page 31, 8 figures, 6 tables, submitted to EPJC. All figures including auxiliary figures are available at https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/STDM-2016-01/

Keywords

  • hep-ex

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