Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/139520
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Type: | Journal article |
Title: | Measurement of single top-quark production in the s-channel in proton–proton collisions at √s= 13 TeV with the ATLAS detector |
Other Titles: | Measurement of single top-quark production in the s-channel in proton-proton collisions at root s= 13 TeV with the ATLAS detector |
Author: | Aad, G. Abbott, B. Abbott, D.C. Abeling, K. Abidi, S.H. Aboulhorma, A. Abramowicz, H. Abreu, H. Abulaiti, Y. Abusleme Hoffman, A.C. Acharya, B.S. Achkar, B. Adam Bourdarios, C. Adamczyk, L. Adamek, L. Addepalli, S.V. Adelman, J. Adiguzel, A. Adorni, S. Adye, T. et al. |
Citation: | The Journal of High Energy Physics, 2023; 2023(6):191-0-191-46 |
Publisher: | Springer-Verlag |
Issue Date: | 2023 |
ISSN: | 1029-8479 1029-8479 |
Statement of Responsibility: | G. Aad ... E.K. Filmer ... P. Jackson ... A.X.Y. Kong ... H. Potti ... T.A. Ruggeri ... E.X.L. Ting ... M.J. White ... et al. (The ATLAS collaboration) |
Abstract: | A measurement of single top-quark production in the s-channel is performed in proton–proton collisions at a centre-of-mass energy of 13 TeV with the ATLAS detector at the CERN Large Hadron Collider. The dataset corresponds to an integrated luminosity of 139 fb⁻¹. The analysis is performed on events with an electron or muon, missing transverse momentum and exactly two b-tagged jets in the final state. A discriminant based on matrix element calculations is used to separate single-top-quark s-channel events from the main background contributions, which are top-quark pair production and W-boson production in association with jets. The observed (expected) signal significance over the background-only hypothesis is 3.3 (3.9) standard deviations, and the measured cross-section is σ=8.2+3.5−2.9 pb, consistent with the Standard Model prediction of σSM=10.32+0.40−0.36 pb. |
Keywords: | Hadron-Hadron Scattering; Top Physics |
Description: | Published: June 27, 2023 |
Rights: | Open Access, Copyright CERN, for the benefit of the ATLAS Collaboration. Article funded by SCOAP3. Open Access. This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited. SCOAP3 supports the goals of the International Year of Basic Sciences for Sustainable Development. |
DOI: | 10.1007/jhep06(2023)191 |
Published version: | http://dx.doi.org/10.1007/jhep06(2023)191 |
Appears in Collections: | Physics publications |
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hdl_139520.pdf | Published version | 1.52 MB | Adobe PDF | View/Open |
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