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Search for new phenomena in events with two opposite-charge leptons, jets and missing transverse momentum in pp collisions at √s = 13 TeV with the ATLAS detector

  1. 1.
    SYSNO ASEP0548725
    Document TypeJ - Journal Article
    R&D Document TypeJournal Article
    Subsidiary JČlánek ve WOS
    TitleSearch for new phenomena in events with two opposite-charge leptons, jets and missing transverse momentum in pp collisions at √s = 13 TeV with the ATLAS detector
    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, ORCID
    Number of authors2928
    Article number165
    Source TitleJournal of High Energy Physics. - : Springer - ISSN 1029-8479
    Roč. 2021, č. 4 (2021)
    Number of pages61 s.
    Languageeng - English
    CountryUS - United States
    KeywordsATLAS ; CERN ; dark matter: mediation ; scalar ; squark: mass
    Subject RIVBF - Elementary Particles and High Energy Physics
    OECD categoryParticles and field physics
    R&D ProjectsLTT17018 GA MŠk - Ministry of Education, Youth and Sports (MEYS)
    Research InfrastructureCERN-CZ II - 90104 - Fyzikální ústav AV ČR, v. v. i.
    Method of publishingOpen access
    Institutional supportFZU-D - RVO:68378271
    UT WOS000642153100001
    EID SCOPUS85104770225
    DOI10.1007/JHEP04(2021)165
    AnnotationThe results of a search for direct pair production of top squarks and for dark matter in events with two opposite-charge leptons (electrons or muons), jets and missing transverse momentum are reported, using 139 fb−1^{−1}−1 of integrated luminosity from proton-proton collisions at s sqrt{s} s ​ = 13 TeV, collected by the ATLAS detector at the Large Hadron Collider during Run 2 (2015–2018). This search considers the pair production of top squarks and is sensitive across a wide range of mass differences between the top squark and the lightest neutralino. Additionally, spin-0 mediator dark-matter models are considered, in which the mediator is produced in association with a pair of top quarks. The mediator subsequently decays to a pair of dark-matter particles. No significant excess of events is observed above the Standard Model background, and limits are set at 95% confidence level.
    WorkplaceInstitute of Physics
    ContactKristina Potocká, potocka@fzu.cz, Tel.: 220 318 579
    Year of Publishing2022
    Electronic addresshttp://hdl.handle.net/11104/0324770
Number of the records: 1