Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/115244
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Type: | Journal article |
Title: | Search for pair production of vector-like top quarks in events with one lepton, jets, and missing transverse momentum in √s=13 TeV pp collisions with the ATLAS detector |
Other Titles: | Search for pair production of vector-like top quarks in events with one lepton, jets, and missing transverse momentum in root s=13 TeV pp collisions with the ATLAS detector |
Author: | Aaboud, M. Aad, G. Abbott, B. Abdinov, O. Abeloos, B. Abidi, S. AbouZeid, O. Abraham, N. Abramowicz, H. Abreu, H. Abreu, R. Abulaiti, Y. Acharya, B. Adachi, S. Adamczyk, L. Adelman, J. Adersberger, M. Adye, T. Affolder, A. Agatonovic-Jovin, T. et al. |
Citation: | The Journal of High Energy Physics, 2017; 2017(8):052-1-052-39 |
Publisher: | Springer |
Issue Date: | 2017 |
ISSN: | 1126-6708 1029-8479 |
Statement of Responsibility: | M. Aaboud, G. Aad ... P. Jackson … L. Lee ... A. Petridis … M. J. White … et al. (ATLAS Collaboration) |
Abstract: | The results of a search for vector-like top quarks using events with exactly one lepton, at least four jets, and large missing transverse momentum are reported. The search is optimised for pair production of vector-like top quarks in the Z(→νν) t + X decay channel. LHC pp collision data at a centre-of-mass energy of s√=13 TeV recorded by the ATLAS detector in 2015 and 2016 are used, corresponding to an integrated luminosity of 36.1 fb−1. No significant excess over the Standard Model expectation is seen and upper limits on the production cross-section of a vector-like T quark pair as a function of the T quark mass are derived. The observed (expected) 95% CL lower limits on the T mass are 870 GeV (890 GeV) for the weak-isospin singlet model, 1.05 TeV (1.06 TeV) for the weak-isospin doublet model and 1.16 TeV (1.17 TeV) for the pure Zt decay mode. Limits are also set on the mass as a function of the decay branching ratios, excluding large parts of the parameter space for masses below 1 TeV. |
Keywords: | Exotics; Hadron-Hadron scattering (experiments); vector-like quarks |
Rights: | © The Author(s) 2017. This article is published under an open access license. Please check the 'Copyright Information' section for details of this license and what re-use is permitted. If your intended use exceeds what is permitted by the license or if you are unable to locate the licence and re-use information, please contact the Rights and Permissions team. |
DOI: | 10.1007/JHEP08(2017)052 |
Published version: | http://dx.doi.org/10.1007/jhep08(2017)052 |
Appears in Collections: | Aurora harvest 3 Physics publications |
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hdl_115244.pdf | Published version | 1.25 MB | Adobe PDF | View/Open |
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