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

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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

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Title: 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
Author(s):
Aaboud, M.;
Aad, G.;
Abbott, B.;
Abdinov, O.;
Abeloos, B.;
Abidi, S. H.;
AbouZeid, O. S.;
Izen, Joseph M.;
Meirose, Bernhard;
Reeves, Kendall;
ATLAS Collaboration
Date Created: 2017-10-27
Item Type: article
Keywords: Show Keywords
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(Zjj)(EW) = 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. © 2017 The Author(s). Published by Elsevier B.V.
Publisher: Elsevier Science B.V.
ISSN: 0370-2693
Source: Physics Letters B
Link to Related Resource: http://dx.doi.org/10.1016/j.physletb.2017.10.040
Persistent Link: http://hdl.handle.net/10735.1/6098
Bibliographic Citation: Aaboud, M., G. Aad, B. Abbott, O. Abdinov, et al. 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, doi:10.1016/j.physletb.2017.10.040
Terms of Use: CC BY 4.0 (Attribution)
©2017 The Authors

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