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Measurements of W.sup.+./sup.W.sup.-./sup. production in decay topologies inspired by searches for electroweak supersymmetry

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    0578021 - FZÚ 2024 RIV DE eng J - Journal Article
    Aad, G. - Abbott, B. - Abbott, D.C. - Chudoba, Jiří - Hejbal, Jiří - 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 2884 authors
    Measurements of W+W- production in decay topologies inspired by searches for electroweak supersymmetry.
    European Physical Journal C. Roč. 83, č. 8 (2023), č. článku 718. ISSN 1434-6044. E-ISSN 1434-6052
    Research Infrastructure: CERN-CZ III - 90240
    Institutional support: RVO:68378271
    Keywords : CERN LHC Coll * electroweak interaction * channel cross section: measured
    OECD category: Particles and field physics
    Impact factor: 4.4, year: 2022
    Method of publishing: Open access

    This paper presents a measurement of fiducial and differential cross-sections for W+W−W+W− production in proton–proton collisions at s=13s ​=13 TeV with the ATLAS experiment at the Large Hadron Collider using a dataset corresponding to an integrated luminosity of 139 fb−1−1. Events with exactly one electron, one muon and no hadronic jets are studied. The fiducial region in which the measurements are performed is inspired by searches for the electroweak production of supersymmetric charginos decaying to two-lepton final states. The selected events have moderate values of missing transverse momentum and the ‘stransverse mass’ variable mT2mT2​, which is widely used in searches for supersymmetry at the LHC. The ranges of these variables are chosen so that the acceptance is enhanced for direct W+W−W+W− production and suppressed for production via top quarks, which is treated as a background.
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