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



Aaboud, M, Aad, G, Abbott, B, Abdinov, O, Abeloos, B, Abidi, SH, AbouZeid, OS, Abraham, NL, Abramowicz, H, Abreu, H
et al (show 2864 more authors) (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, 1873-2445

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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 σ<inf>EW</inf> 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: Article
Additional Information: 40 pages in total, author list starting page 24, 6 figures, 5 tables, published in Phys. Lett. B. All figures and tables including auxiliary figures are available at http://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/STDM-2016-09/
Uncontrolled Keywords: hep-ex, hep-ex
Depositing User: Symplectic Admin
Date Deposited: 18 Dec 2017 09:11
Last Modified: 22 May 2026 21:29
DOI: 10.1016/j.physletb.2017.10.040
Open Access URL: http://doi.org/10.1016/j.physletb.2017.10.040
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URI: https://livrepository.liverpool.ac.uk/id/eprint/3014283
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