Počet záznamů: 1  

Search for neutral long-lived particles in pp collisions at √s = 13 TeV that decay into displaced hadronic jets in the ATLAS calorimeter

  1. 1.
    0562920 - FZÚ 2023 RIV US eng J - Článek v odborném periodiku
    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 … celkem 2860 autorů
    Search for neutral long-lived particles in pp collisions at √s = 13 TeV that decay into displaced hadronic jets in the ATLAS calorimeter.
    Journal of High Energy Physics. Roč. 2022, č. 6 (2022), č. článku 005. ISSN 1029-8479. E-ISSN 1029-8479
    Výzkumná infrastruktura: CERN-CZ II - 90104; e-INFRA CZ - 90140
    Institucionální podpora: RVO:68378271
    Klíčová slova: ATLAS * jet: hadronic * calorimeter: hadronic
    Obor OECD: Particles and field physics
    Impakt faktor: 5.4, rok: 2022
    Způsob publikování: Open access

    search for decays of pair-produced neutral long-lived particles (LLPs) is presented using 139 fb−1^{−1}−1 of proton-proton collision data collected by the ATLAS detector at the LHC in 2015–2018 at a centre-of-mass energy of 13 TeV. Dedicated techniques were developed for the reconstruction of displaced jets produced by LLPs decaying hadronically in the ATLAS hadronic calorimeter. Two search regions are defined for different LLP kinematic regimes. The observed numbers of events are consistent with the expected background, and limits for several benchmark signals are determined. For a SM Higgs boson with a mass of 125 GeV, branching ratios above 10% are excluded at 95% confidence level for values of c times LLP mean proper lifetime in the range between 20 mm and 10 m depending on the model. Upper limits are also set on the cross-section times branching ratio for scalars with a mass of 60 GeV and for masses between 200 GeV and 1 TeV.

    Trvalý link: https://hdl.handle.net/11104/0335723

     
    Název souboruStaženoVelikostKomentářVerzePřístup
    0562920.pdf03.7 MBCC LicenceVydavatelský postprintpovolen
     
Počet záznamů: 1  

  Tyto stránky využívají soubory cookies, které usnadňují jejich prohlížení. Další informace o tom jak používáme cookies.