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Search for supersymmetry in events with four or more charged leptons in 139 fb.sup.−1./sup. of √s = 13 TeV pp collisions with the ATLAS detector

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    0552062 - FZÚ 2022 RIV US eng J - Journal Article
    Aad, G. - Abbott, B. - Abbott, D.C. - Chudoba, Jiří - Hejbal, Jiří - Hladík, Ondřej - Jačka, Petr - Kepka, Oldřich - Kroll, Jiří - Kupčo, Alexander - Latoňová, Věra - Lokajíček, Miloš - Lysák, Roman - Marčišovský, Michal - Mikeštíková, Marcela - Němeček, Stanislav - Penc, Ondřej - Šícho, Petr - Staroba, Pavel - Svatoš, Michal - Taševský, Marek … Total 2932 authors
    Search for supersymmetry in events with four or more charged leptons in 139 fb−1 of √s = 13 TeV pp collisions with the ATLAS detector.
    Journal of High Energy Physics. Roč. 2021, č. 7 (2021), č. článku 167. ISSN 1029-8479. E-ISSN 1029-8479
    R&D Projects: GA MŠMT(CZ) LTT17018
    Research Infrastructure: CERN-CZ II - 90104
    Institutional support: RVO:68378271
    Keywords : ATLAS * CERN LHC Coll * R parity: violation
    OECD category: Particles and field physics
    Impact factor: 6.376, year: 2021
    Method of publishing: Open access

    A search for supersymmetry in events with four or more charged leptons (electrons, muons and τ auτ-leptons) is presented. The analysis uses a data sample corresponding to 139,mbox{fb(^{-1})} of proton-proton collisions delivered by the Large Hadron Collider at s=13sqrt{s}=13s ​=13 TeV and recorded by the ATLAS detector. Four-lepton signal regions with up to two hadronically decaying τ auτ-leptons are designed to target several supersymmetric models, while a general five-lepton signal region targets any new physics phenomena leading to a final state with five charged leptons. Data yields are consistent with Standard Model expectations and results are used to set upper limits on contributions from processes beyond the Standard Model. Exclusion limits are set at the 95% confidence level in simplified models of general gauge-mediated supersymmetry, excluding higgsino masses up to 540540540 GeV.

    Permanent Link: http://hdl.handle.net/11104/0327226

     
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