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https://hdl.handle.net/2440/115030
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Type: | Journal article |
Title: | Measurement of the cross-section for producing a W boson in association with a single top quark in pp collisions at √s=13 TeV with ATLAS |
Other Titles: | Measurement of the cross-section for producing a W boson in association with a single top quark in pp collisions at root s = 13 TeV with ATLAS |
Author: | Aaboud, M. Aad, G. Abbott, B. Abdallah, J. Abdinov, O. Abeloos, B. Aben, R. AbouZeid, O. Abraham, N. Abramowicz, H. Abreu, H. Abreu, R. Abulaiti, Y. Acharya, B. Adachi, S. Adamczyk, L. Adams, D. Adelman, J. Adomeit, S. Adye, T. et al. |
Citation: | The Journal of High Energy Physics, 2018; 2018(1):063-1-063-42 |
Publisher: | Springer |
Issue Date: | 2018 |
ISSN: | 1126-6708 1029-8479 |
Statement of Responsibility: | M. Aaboud ... P. Jackson … L. Lee ... A. Petridis …M.J. White... et al. (ATLAS Collaboration) |
Abstract: | The inclusive cross-section for the associated production of a W boson and top quark is measured using data from proton-proton collisions at s√=13 TeV. The dataset corresponds to an integrated luminosity of 3.2 fb−1, and was collected in 2015 by the ATLAS detector at the Large Hadron Collider at CERN. Events are selected requiring two opposite sign isolated leptons and at least one jet; they are separated into signal and control regions based on their jet multiplicity and the number of jets that are identified as containing b hadrons. The W t signal is then separated from the tt¯ background using boosted decision tree discriminants in two regions. The cross-section is extracted by fitting templates to the data distributions, and is measured to be σ W t = 94 ± 10(stat.) − 22 + 28 (syst.) ± 2(lumi.) pb. The measured value is in good agreement with the SM prediction of σtheory = 71.7±1.8 (scale)± 3.4 (PDF) pb [1]. |
Keywords: | Hadron-Hadron scattering (experiments) |
Rights: | © The Author(s) 2018. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0), which permits use, duplication, adaptation, distribution, and reproduction in any medium or format, as long as 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. |
DOI: | 10.1007/JHEP01(2018)063 |
Published version: | http://dx.doi.org/10.1007/jhep01(2018)063 |
Appears in Collections: | Aurora harvest 8 Physics publications |
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