Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/123519
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Type: | Journal article |
Title: | Measurements of inclusive and differential fiducial cross-sections of tt¯ production with additional heavy-flavour jets in proton-proton collisions at √s = 13 TeV with the ATLAS detector |
Other Titles: | Measurements of inclusive and differential fiducial cross-sections of tt -bar production with additional heavy-flavour jets in proton-proton collisions at root s = 13 TeV with the ATLAS detector |
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: | The Journal of High Energy Physics, 2019; 2019(4):046-[1],1-046-65 |
Publisher: | Springer |
Issue Date: | 2019 |
ISSN: | 1126-6708 1029-8479 |
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: | This paper presents measurements of tt¯ production in association with additional b-jets in pp collisions at the LHC at a centre-of-mass energy of 13 TeV. The data were recorded with the ATLAS detector and correspond to an integrated luminosity of 36.1 fb⁻¹. Fiducial cross-section measurements are performed in the dilepton and lepton-plus-jets tt¯ decay channels. Results are presented at particle level in the form of inclusive cross-sections of tt¯ final states with three and four b-jets as well as differential cross-sections as a function of global event properties and properties of b-jet pairs. The measured inclusive fiducial cross-sections generally exceed the tt¯bb¯¯ predictions from various next-to-leading-order matrix element calculations matched to a parton shower but are compatible within the total uncertainties. The experimental uncertainties are smaller than the uncertainties in the predictions. Comparisons of state-of-the-art theoretical predictions with the differential measurements are shown and good agreement with data is found for most of them. |
Rights: | Open Access, Copyright CERN, for the benefit of the ATLAS Collaboration. Article funded by SCOAP³. 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. |
DOI: | 10.1007/JHEP04(2019)046 |
Grant ID: | ARC |
Published version: | http://dx.doi.org/10.1007/jhep04(2019)046 |
Appears in Collections: | Aurora harvest 8 Physics publications |
Files in This Item:
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hdl_123519.pdf | Published version | 1.48 MB | Adobe PDF | View/Open |
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