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Combination of searches for singly produced vectorlike top quarks in 𝑝𝑝 collisions at √𝑠 =13 TeV with the ATLAS detector
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SYSNO ASEP 0618695 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Combination of searches for singly produced vectorlike top quarks in 𝑝𝑝 collisions at √𝑠 =13 TeV with the ATLAS detector Author(s) Aad, G. (FR)
Aakvaag, E. (NO)
Abbott, B. (US)
Chudoba, Jiří (FZU-D) RID, ORCID
Federičová, Pavla (FZU-D) ORCID
Hejbal, Jiří (FZU-D) RID, 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
Lysák, Roman (FZU-D) RID, ORCID
Marčišovský, Michal (FZU-D) RID, ORCID
Mikeštíková, Marcela (FZU-D) RID, ORCID
Nechanský, Filip (FZU-D) ORCID
Němeček, Stanislav (FZU-D) RID, 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 2934 Article number 012012 Source Title Physical Review D. - : American Physical Society - ISSN 2470-0010
Roč. 111, č. 1 (2025)Number of pages 30 s. Language eng - English Country US - United States Keywords quarks ; ATLAS detector ; Standard Model Higgs boson Subject RIV BF - Elementary Particles and High Energy Physics OECD category Particles and field physics R&D Projects EH22_008/0004632 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) 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 001426259500001 EID SCOPUS 85217853125 DOI https://doi.org/10.1103/PhysRevD.111.012012 Annotation A combination of searches for the single production of vectorlike top quarks (T) is presented. These analyses are based on proton-proton collisions at s=13TeV recorded in 2015–2018 with the ATLAS detector at the Large Hadron Collider, corresponding to an integrated luminosity of 139 fb-1. The T decay modes considered in this combination are into a top quark and either a Standard Model Higgs boson or a Z boson (T→Ht and T→Zt). The individual searches used in the combination are differentiated by the number of leptons (e ,μ ) in the final state. The observed data are found to be in good agreement with the Standard Model background prediction. Interpretations are provided for a range of masses and couplings of the vectorlike top quark for benchmark models and generalized representations in terms of 95% confidence level limits. For a benchmark signal prediction of a vectorlike top quark SU(2) singlet with electroweak coupling, κ, of 0.5, masses below 2.1 TeV are excluded, resulting in the most restrictive limits to date. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2026 Electronic address https://hdl.handle.net/11104/0365524
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