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Combination of inclusive top-quark pair production cross-section measurements using ATLAS and CMS data at √s = 7 and 8 TeV
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SYSNO ASEP 0577500 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Combination of inclusive top-quark pair production cross-section measurements using ATLAS and CMS data at √s = 7 and 8 TeV Author(s) Aad, G. (FR)
Abbott, B. (US)
Abbott, D.C. (US)
Chudoba, Jiří (FZU-D) RID, ORCID
Hejbal, Jiří (FZU-D) RID, ORCID
Hladík, Ondřej (FZU-D) ORCID
Jačka, Petr (FZU-D) ORCID
Kepka, Oldřich (FZU-D) RID, ORCID
Kroll, Jiří (FZU-D) ORCID
Kupčo, Alexander (FZU-D) RID, ORCID
Latoňová, Věra (FZU-D) ORCID
Lokajíček, Miloš (FZU-D) RID, ORCID
Lysák, Roman (FZU-D) RID, ORCID
Marčišovský, Michal (FZU-D) RID, ORCID
Mikeštíková, Marcela (FZU-D) RID, ORCID
Němeček, Stanislav (FZU-D) RID, ORCID
Penc, Ondřej (FZU-D) ORCID
Šícho, Petr (FZU-D) RID, ORCID
Staroba, Pavel (FZU-D) RID, ORCID
Svatoš, Michal (FZU-D) RID, ORCID
Taševský, Marek (FZU-D) RID, ORCIDNumber of authors 5245 Article number 213 Source Title Journal of High Energy Physics. - : Springer - ISSN 1029-8479
Roč. 2023, č. 7 (2023)Number of pages 63 s. Language eng - English Country DE - Germany Keywords hadron-hadron scattering ; top physics ; pp: colliding beams Subject RIV BF - Elementary Particles and High Energy Physics OECD category Particles and field physics Research Infrastructure CERN-CZ III - 90240 - Fyzikální ústav AV ČR, v. v. i. Method of publishing Open access Institutional support FZU-D - RVO:68378271 UT WOS 001058564200001 DOI https://doi.org/10.1007/JHEP07(2023)213 Annotation A combination of measurements of the inclusive top-quark pair production cross-section performed by ATLAS and CMS in proton–proton collisions at centre-of-mass energies of 7 and 8 TeV at the LHC is presented. The cross-sections are obtained using top-quark pair decays with an opposite-charge electron–muon pair in the final state and with data corresponding to an integrated luminosity of about 5 fb−1−1 at ss = 7 TeV and about 20 fb−1−1 at ss = 8 TeV for each experiment. The combined cross-sections are determined to be 178.5 ± 4.7 pb at ss = 7 TeV and 243.3−5.9+6.0243.3−5.9+6.0 pb at ss = 8 TeV with a correlation of 0.41, using a reference top-quark mass value of 172.5 GeV. The ratio of the combined cross-sections is determined to be R8/78/7 = 1.363 ± 0.032. The combined measured cross-sections and their ratio agree well with theory calculations using several parton distribution function (PDF) sets. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2024 Electronic address https://hdl.handle.net/11104/0347822
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