Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/124573
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Type: | Journal article |
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 |
Author: | Aaboud, M. Aad, G. Abbott, B. Abdinov, O. Abeloos, B. Abidi, S.H. AbouZeid, O.S. Abraham, N.L. Abramowicz, H. Abreu, H. Abulaiti, Y. Acharya, B.S. Adachi, S. Adamczyk, L. Adelman, J. Adersberger, M. Adiguzel, A. Adye, T. Affolder, A.A. Afik, Y. et al. |
Citation: | European Physical Journal C: Particles and Fields, 2018; 78(7):565-1-565-39 |
Publisher: | Springer |
Issue Date: | 2018 |
ISSN: | 1434-6044 1434-6052 |
Statement of Responsibility: | M. Aaboud … Damir Duvnjak … Paul D. Jackson … Jason L. Oliver … Andreas Petridis … Anum Qureshi, ... Abhishek Sharma … Martin White 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. |
Keywords: | ATLAS Collaboration |
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. |
DOI: | 10.1140/epjc/s10052-018-5995-6 |
Grant ID: | ARC |
Published version: | http://dx.doi.org/10.1140/epjc/s10052-018-5995-6 |
Appears in Collections: | Aurora harvest 4 Physics publications |
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hdl_124573.pdf | Published version | 4.63 MB | Adobe PDF | View/Open |
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