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Search for new phenomena with top-quark pairs and large missing transverse momentum using 140 fb.sup.−1./sup. of pp collision data at √s= 13 TeV with the ATLAS detector
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SYSNO ASEP 0587923 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Search for new phenomena with top-quark pairs and large missing transverse momentum using 140 fb−1 of pp collision data 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
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
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 2893 Article number 139 Source Title Journal of High Energy Physics. - : Springer - ISSN 1029-8479
Roč. 2024, č. 3 (2024)Number of pages 57 s. Language eng - English Country DE - Germany Keywords hadron-hadron scattering ; p p: colliding beams ; new physics: search for 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 001252773600001 EID SCOPUS 85193029940 DOI https://doi.org/10.1007/JHEP03(2024)139 Annotation A search is conducted for new phenomena in events with a top quark pair and large missing transverse momentum, where the top quark pair is reconstructed in final states with one isolated electron or muon and multiple jets. The search is performed using the Large Hadron Collider proton-proton collision data sample at a centre-of-mass energy of √s = 13 TeV recorded by the ATLAS detector that corresponds to an integrated luminosity of 140 fb−1. An analysis based on neural network classifiers is optimised to search for directly produced pairs of supersymmetric partners of the top quark (stop), and to search for spin-0 mediators, produced in association with a pair of top quarks, that decay into dark-matter particles. In the stop search, the analysis is designed to target models in which the mass difference between the stop and the neutralino from the stop decay is close to the top quark mass. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2025 Electronic address https://hdl.handle.net/11104/0354991
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