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|Title:||Search for heavy particles decaying into top-quark pairs using lepton-plus-jets events in proton–proton collisions at √s=13 TeV with the ATLAS detector|
|Other Titles:||Search for heavy particles decaying into top-quark pairs using lepton-plus-jets events in proton–proton collisions at root s=13 TeV with the ATLAS detector|
|Citation:||European Physical Journal C, 2018; 78(7):565-1-565-39|
|M. Aaboud … Damir Duvnjak … Paul D. Jackson … Jason L. Oliver … Andreas Petridis … Abhishek Sharma … et al. (The ATLAS Collaboration)|
|Abstract:||A search for new heavy particles that decay into top-quark pairs is performed using data collected from proton–proton collisions at a centre-of-mass energy of 13 TeV by the ATLAS detector at the Large Hadron Collider. The integrated luminosity of the data sample is 36.1 fb−1. Events consistent with top-quark pair production are selected by requiring a single isolated charged lepton, missing transverse momentum and jet activity compatible with a hadronic top-quark decay. Jets identified as likely to contain b-hadrons are required to reduce the background from other Standard Model processes. The invariant mass spectrum of the candidate top-quark pairs is examined for local excesses above the background expectation. No significant deviations from the Standard Model predictions are found. Exclusion limits are set on the production cross-section times branching ratio for hypothetical Z bosons, Kaluza–Kein gluons and Kaluza–Klein gravitons that decay into top-quark pairs.|
|Rights:||© CERN for the benefit of the ATLAS collaboration 2018. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecomm ons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. Funded by SCOAP3.|
|Appears in Collections:||Physics publications|
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