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@ARTICLE{Aad:619610,
      author       = {Aad, Georges and others},
      collaboration = {{ATLAS Collaboration}},
      title        = {{S}earch for leptoquark pair production decaying into $te^-
                      \bar{t}e^+$ or $t\mu ^- \bar{t}\mu ^+$ in multi-lepton final
                      states in pp collisions at $\sqrt{s} = 13\,\textrm{{T}e{V}}$
                      with the {ATLAS} detector},
      journal      = {The European physical journal / C},
      volume       = {84},
      number       = {8},
      issn         = {1434-6052},
      address      = {Heidelberg},
      publisher    = {Springer},
      reportid     = {PUBDB-2024-07751, arXiv:2306.17642. CERN-EP-2023-087},
      pages        = {818},
      year         = {2024},
      note         = {61 pages in total, author list starting page 44, 11
                      figures, 6 tables, published by EPJC. All figures including
                      auxiliary figures are available at
                      http://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/EXOT-2020-08
                      Deutsche Forschungsgemeinschaft (DFG – CR 312/5-1);},
      abstract     = {A search for leptoquark pair production decaying into $te^-
                      \bar{t}e^+$ or $t\mu ^- \bar{t}\mu ^+$ in final states with
                      multiple leptons is presented. The search is based on a
                      dataset of pp collisions at $\sqrt{s}=13~\text {TeV} $
                      recorded with the ATLAS detector during Run 2 of the Large
                      Hadron Collider, corresponding to an integrated luminosity
                      of 139 fb$^{-1}$. Four signal regions, with the requirement
                      of at least three light leptons (electron or muon) and at
                      least two jets out of which at least one jet is identified
                      as coming from a b-hadron, are considered based on the
                      number of leptons of a given flavour. The main background
                      processes are estimated using dedicated control regions in a
                      simultaneous fit with the signal regions to data. No excess
                      above the Standard Model background prediction is observed
                      and 95\% confidence level limits on the production cross
                      section times branching ratio are derived as a function of
                      the leptoquark mass. Under the assumption of exclusive
                      decays into $te^{-}$ ($t\mu ^{-}$), the corresponding lower
                      limit on the scalar mixed-generation leptoquark mass
                      $m_{\textrm{LQ}_{\textrm{mix}}^{\textrm{d}}}$ is at 1.58
                      (1.59) TeV and on the vector leptoquark mass
                      $m_{{\tilde{U}}_1}$ at 1.67 (1.67) TeV in the minimal
                      coupling scenario and at 1.95 (1.95) TeV in the Yang–Mills
                      scenario.},
      keywords     = {p p: colliding beams (INSPIRE) / leptoquark: mass: lower
                      limit (INSPIRE) / leptoquark: pair production (INSPIRE) / p
                      p: scattering (INSPIRE) / coupling: minimal (INSPIRE) /
                      lepton: multiple production (INSPIRE) / background (INSPIRE)
                      / ATLAS (INSPIRE) / final state: ((n)jet dilepton) (INSPIRE)
                      / final state: ((n)jet 3lepton) (INSPIRE) / final state:
                      ((n)jet 4lepton) (INSPIRE) / jet: bottom (INSPIRE) / bottom:
                      particle identification (INSPIRE) / leptoquark: scalar
                      (INSPIRE) / leptoquark: vector particle (INSPIRE) / muon
                      (INSPIRE) / channel cross section: branching ratio: upper
                      limit (INSPIRE) / mass dependence (INSPIRE) / Yang-Mills
                      (INSPIRE) / electron (INSPIRE) / CERN LHC Coll (INSPIRE) /
                      flavor (INSPIRE) / experimental results (INSPIRE) /
                      leptoquark --> top electron (INSPIRE) / leptoquark --> top
                      muon (INSPIRE) / 13000 GeV-cms (INSPIRE)},
      cin          = {ATLAS},
      ddc          = {530},
      cid          = {I:(DE-H253)ATLAS-20120731},
      pnm          = {611 - Fundamental Particles and Forces (POF4-611)},
      pid          = {G:(DE-HGF)POF4-611},
      experiment   = {EXP:(DE-H253)LHC-Exp-ATLAS-20150101},
      typ          = {PUB:(DE-HGF)16},
      eprint       = {2306.17642},
      howpublished = {arXiv:2306.17642},
      archivePrefix = {arXiv},
      SLACcitation = {$\%\%CITATION$ = $arXiv:2306.17642;\%\%$},
      UT           = {WOS:001345843000007},
      doi          = {10.1140/epjc/s10052-024-12975-4},
      url          = {https://bib-pubdb1.desy.de/record/619610},
}