Journal article
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
- 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.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
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- Files:
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(Preview, Version of record, pdf, 5.2MB, Terms of use)
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- Publisher copy:
- 10.1140/epjc/s10052-018-5995-6
Authors
- Publisher:
- Springer Verlag
- Journal:
- European Physical Journal C: Particles and Fields More from this journal
- Volume:
- 78
- Issue:
- 565
- Publication date:
- 2018-07-09
- Acceptance date:
- 2018-06-14
- DOI:
- EISSN:
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1434-6052
- ISSN:
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1434-6044
- Pmid:
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30395135
- Language:
-
English
- Keywords:
- Pubs id:
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pubs:890170
- UUID:
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uuid:4c848144-7b10-40c3-b78f-dfa9e2448d1e
- Local pid:
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pubs:890170
- Source identifiers:
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890170
- Deposit date:
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2018-12-02
Terms of use
- Copyright holder:
- CERN
- Copyright date:
- 2018
- Notes:
- © 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://creativecommons.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. Full funding details are available at: 10.1140/epjc/s10052-018-5995-6
- Licence:
- CC Attribution (CC BY)
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