Measurements of the Production Cross Section of a Z Boson in Association with Jets in pp Collisions at √s̅ = 13 TeV with the ATLAS Detector

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Measurements of the Production Cross Section of a Z Boson in Association with Jets in pp Collisions at √s̅ = 13 TeV with the ATLAS Detector

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Title: Measurements of the Production Cross Section of a Z Boson in Association with Jets in pp Collisions at √s̅ = 13 TeV with the ATLAS Detector
Author(s):
Aaboud, M.;
Aad, G.;
Abbott, B.;
Abdallah, J.;
Abdinov, O.;
Abeloos, B.;
Aben, R.;
Izen, Joseph M.;
Leyton, Michael;
Meirose, Bernhard;
Namasivayam, Harisankar;
Reeves, Kendall;
ATLAS Collaboration
Date Created: 2017-01-20
Item Type: article
Keywords: Show Keywords
Abstract: A measurement of the tt̅ Z and tt̅ W production cross sections in final states with either two same-charge muons, or three or four leptons (electrons or muons) is presented. The analysis uses a data sample of proton–proton collisions at √s̅ = 13 TeV recorded with the ATLAS detector at the Large Hadron Collider in 2015, corresponding to a total integrated luminosity of 3.2 fb⁻¹. The inclusive cross sections are extracted using likelihood fits to signal and control regions, resulting in σ_{tt̅ Z} = 0.9 ± 0.3 pb and σ_{tt̅ W} = 1.5 ± 0.8 pb, in agreement with the Standard Model predictions.
Publisher: Springer New York LLC
ISSN: 1434-6044
Source: European Physical Journal C
Link to Related Resource: http://dx.doi.org/10.1140/epjc/s10052-016-4574-y
Persistent Link: http://hdl.handle.net/10735.1/5708
Bibliographic Citation: Aaboud, M., G. Aad, B. Abbott, J. Abdallah, et al. 2017. "Measurement of the tt̅ Z and tt̅ W production cross sections in multilepton final states using 3.2 fb⁻¹ of pp collisions at √s = 13 TeV with the ATLAS detector." European Physical Journal C 77(1), doi:10.1140/epjc/s10052-016-4574-y
Terms of Use: CC BY 4.0 (Attribution)
©2017 CERN for the benefit of the ATLAS collaboration.

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CC BY 4.0 (Attribution) Except where otherwise noted, this item's license is described as CC BY 4.0 (Attribution)