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@ARTICLE{Aad:634779,
      author       = {Aad, Georges and others},
      collaboration = {{ATLAS Collaboration}},
      title        = {{O}bservation of double parton scattering in same-sign {W}
                      boson pair production in pp collisions at $\sqrt{s}=13$
                      {T}e{V} with the {ATLAS} detector},
      reportid     = {PUBDB-2025-02603, arXiv:2505.08313. CERN-EP-2025-109},
      year         = {2025},
      note         = {42 pages in total, author list starting page 25, 5 figures,
                      4 tables, submitted to Phys. Lett. B. All figures including
                      auxiliary figures are available at
                      https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/STDM-2022-18/},
      abstract     = {This letter reports the measurement of double parton
                      scattering in same-sign W boson pair production with the
                      ATLAS detector. The data set used corresponds to an
                      integrated luminosity of 140 fb$^{-1}$ of proton-proton
                      collisions at a center-of-mass energy of 13 TeV, collected
                      during Run 2 of the Large Hadron Collider. The study is
                      performed in final states including two same-charge leptons,
                      electron or muon, missing transverse momentum, and up to one
                      jet. An excess of events is observed over the expected
                      background contributions with a significance of 8.8 standard
                      deviations. The measured fiducial cross section times
                      leptonic branching fraction is $4.59 \pm 0.64$ fb. The
                      measurement corresponds to a double parton scattering
                      effective cross section of $10.6 \pm 1.8$ mb.},
      cin          = {ATLAS},
      cid          = {I:(DE-H253)ATLAS-20120731},
      pnm          = {611 - Fundamental Particles and Forces (POF4-611) / DFG
                      project G:(GEPRIS)469666862 - Präzisionstests des
                      Standardmodells unter der Verwendung von geboosteten
                      W/Z-Bosonen am Large Hadron Collider (469666862) / REALDARK
                      - REAL-time discovery strategies for DARK matter and dark
                      sector signals at the ATLAS detector with Run-3 LHC data
                      (101002463) / DITTO - Comprehensive search for new phenomena
                      in the dilepton spectrum at the LHC (101089007) / BARD -
                      B-resonance Algorithm using Rare Decays (101116429) / SMASH
                      - Machine learning for Sciences and Humanities (101081355)},
      pid          = {G:(DE-HGF)POF4-611 / G:(GEPRIS)469666862 /
                      G:(EU-Grant)101002463 / G:(EU-Grant)101089007 /
                      G:(EU-Grant)101116429 / G:(EU-Grant)101081355},
      experiment   = {EXP:(DE-H253)LHC-Exp-ATLAS-20150101},
      typ          = {PUB:(DE-HGF)25},
      eprint       = {2505.08313},
      howpublished = {arXiv:2505.08313},
      archivePrefix = {arXiv},
      SLACcitation = {$\%\%CITATION$ = $arXiv:2505.08313;\%\%$},
      doi          = {10.3204/PUBDB-2025-02603},
      url          = {https://bib-pubdb1.desy.de/record/634779},
}