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  • Search for top-philic heavy resonances in ▫$\it {pp}$▫ collisions at ▫$\sqrt s = {13}$▫ with the ATLAS detector
    Aad, Georges ...
    A search for the associated production of a heavy resonance with a top-quark or a top-antitop-quark pair, and decaying into a pair is presented. The search uses the data recorded by the ATLAS ... detector in pp collisions at at the Large Hadron Collider during the years 2015–2018, corresponding to an integrated luminosity of 139 . Events containing exactly one electron or muon are selected. The two hadronically decaying top quarks from the resonance decay are reconstructed using jets clustered with a large radius parameter of . The invariant mass spectrum of the two top quark candidates is used to search for a resonance signal in the range of 1.0 to 3.2 . The presence of a signal is examined using an approach with minimal model dependence followed by a model-dependent interpretation. No significant excess is observed over the background expectation. Upper limits on the production cross section times branching ratio at 95% confidence level are provided for a heavy boson based on a simplified model, for mass between 1.0 and 3.0 . The observed (expected) limits range from 21 (14) fb to 119 (86) fb depending on the choice of model parameters.
    Vir: European physical journal [Elektronski vir]. C, Particles and fields. - ISSN 1434-6052 (Vol. 84, article number 157, 2024, str. 1-32)
    Vrsta gradiva - e-članek ; neleposlovje za odrasle
    Leto - 2024
    Jezik - angleški
    COBISS.SI-ID - 195363843

    Povezava(-e):

    https://link.springer.com/article/10.1140/epjc/s10052-023-12318-9
    DOI

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