Adelaide Research & Scholarship
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https://hdl.handle.net/2440/123498
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| Type: | Journal article |
| Title: | Measurement of the top quark mass in the tt¯ → lepton+jets channel from √s = 8 TeV ATLAS data and combination with previous results |
| Other Titles: | Measurement of the top quark mass in the t(t)over-bar -> lepton plus jets channel from root s=8 TeV ATLAS data and combination with previous results |
| Author: | Aaboud, M. Aad, G. Abbott, B. Abdinov, O. Abeloos, B. Abhayasinghe, D.K. Abidi, S.H. AbouZeid, O.S. Abraham, N.L. Abramowicz, H. Abreu, H. Abulaiti, Y. Acharya, B.S. Adachi, S. Adam, L. Adamczyk, L. Adelman, J. Adersberger, M. Adiguzel, A. Adye, T. et al. |
| Citation: | European Physical Journal C: Particles and Fields, 2019; 79(4):290-1-290-51 |
| Publisher: | Springer |
| Issue Date: | 2019 |
| ISSN: | 1434-6044 1434-6052 |
| Statement of Responsibility: | M. Aaboud ... D. Duvnjak ... P. Jackson ... J.L. Oliver ... A. Petridis ... A. Qureshi ... A.S. Sharma ... M.J. White ... et al. [The ATLAS Collaboration] |
| Abstract: | The top quark mass is measured using a template method in the tt¯→lepton+jets channel (lepton is e or μ) using ATLAS data recorded in 2012 at the LHC. The data were taken at a proton–proton centre-of-mass energy of s√=8 TeV and correspond to an integrated luminosity of 20.2 fb⁻¹. The tt¯→lepton+jets channel is characterized by the presence of a charged lepton, a neutrino and four jets, two of which originate from bottom quarks (b). Exploiting a three-dimensional template technique, the top quark mass is determined together with a global jet energy scale factor and a relative b-to-light-jet energy scale factor. The mass of the top quark is measured to be mtop=172.08±0.39(stat)±0.82(syst) GeV. A combination with previous ATLAS mtop measurements gives mtop=172.69±0.25(stat)±0.41(syst) GeV. |
| Rights: | © CERN for the benefit of the ATLAS collaboration 2019. Open Access 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. Funded by SCOAP³ |
| DOI: | 10.1140/epjc/s10052-019-6757-9 |
| Grant ID: | ARC |
| Published version: | http://dx.doi.org/10.1140/epjc/s10052-019-6757-9 |
| Appears in Collections: | Aurora harvest 4 Physics publications |
Files in This Item:
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| hdl_123498.pdf | Published Version | 3.1 MB | Adobe PDF | View/Open |
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