Measurement of the cross-section for electroweak production of dijets in association with a Z boson in pp collisions at √s=13 TeV with the ATLAS detector

, The ATLAS collaboration (2017) Measurement of the cross-section for electroweak production of dijets in association with a Z boson in pp collisions at √s=13 TeV with the ATLAS detector. Physics Letters B, 775. pp. 206-228. ISSN 0370-2693

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Abstract

The cross-section for the production of two jets in association with a leptonically decaying Z boson (Zjj) is measured in proton–proton collisions at a centre-of-mass energy of 13 TeV, using data recorded with the ATLAS detector at the Large Hadron Collider, corresponding to an integrated luminosity of 3.2 fb−1. The electroweak Zjj cross-section is extracted in a fiducial region chosen to enhance the electroweak contribution relative to the dominant Drell–Yan Zjj process, which is constrained using a data-driven approach. The measured fiducial electroweak cross-section is σEW Zjj = 119±16(stat.)±20(syst.)±2(lumi.) fb for dijet invariant mass greater than 250 GeV, and 34.2±5.8(stat.)±5.5(syst.)±0.7(lumi.) fb for dijet invariant mass greater than 1 TeV. Standard Model predictions are in agreement with the measurements. The inclusive Zjj cross-section is also measured in six different fiducial regions with varying contributions from electroweak and Drell–Yan Zjj production.

Item Type:
Journal Article
Journal or Publication Title:
Physics Letters B
Additional Information:
© 2017 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). Funded by SCOAP3.
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/3100/3106
Subjects:
ID Code:
124022
Deposited By:
Deposited On:
12 Mar 2018 14:14
Refereed?:
Yes
Published?:
Published
Last Modified:
18 Oct 2021 03:54