Search for large missing transverse momentum in association with one top-quark in proton-proton collisions at √<i>s</i>=13 TeV with the ATLAS detector



Aaboud, M, Aad, G, Abbott, B, Abdinov, O, Abeloos, B, Abhayasinghe, DK, Abidi, SH, AbouZeid, OS, Abraham, NL, Abramowicz, H
et al (show 2921 more authors) (2019) Search for large missing transverse momentum in association with one top-quark in proton-proton collisions at √<i>s</i>=13 TeV with the ATLAS detector. JOURNAL OF HIGH ENERGY PHYSICS, 05 (5). 41-.

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Abstract

This paper describes a search for events with one top-quark and large missing transverse momentum in the final state. Data collected during 2015 and 2016 by the ATLAS experiment from 13 TeV proton-proton collisions at the LHC corresponding to an integrated luminosity of 36.1 fb$^{-1}$ are used. Two channels are considered, depending on the leptonic or the hadronic decays of the $W$ boson from the top quark. The obtained results are interpreted in the context of simplified models for dark-matter production and for the single production of a vector-like $T$ quark. In the absence of significant deviations from the Standard Model background expectation, 95% confidence-level upper limits on the corresponding production cross-sections are obtained and these limits are translated into constraints on the parameter space of the models considered.

Item Type: Article
Additional Information: 50 pages in total, author list starting page 34, 6 figures, 7 tables, published in JHEP. All figures including auxiliary figures are available at https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/EXOT-2017-16
Uncontrolled Keywords: Beyond Standard Model, Dark matter, FCNC Interaction, Hadron-Hadron scattering (experiments), vector-like quarks
Depositing User: Symplectic Admin
Date Deposited: 20 May 2019 15:36
Last Modified: 07 Oct 2023 05:40
DOI: 10.1007/JHEP05(2019)041
Open Access URL: https://doi.org/10.1007/JHEP05(2019)041
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URI: https://livrepository.liverpool.ac.uk/id/eprint/3042197