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@ARTICLE{Aad:275237,
      author       = {Aad, Georges and others},
      collaboration = {{ATLAS Collaboration}},
      title        = {{M}easurements of four-lepton production in pp collisions
                      at $\sqrt{s}=$ 8 {T}e{V} with the {ATLAS} detector},
      reportid     = {PUBDB-2015-03879, CERN-PH-EP-2015-220. arXiv:1509.07844},
      year         = {2015},
      abstract     = {The four-lepton ($4\ell$, $\ell = e, \mu$) production cross
                      section is measured in the mass range from 80 to 1000 GeV
                      using 20.3 fb$^{-1}$ of data in $pp$ collisions at
                      $\sqrt{s}=8$ TeV collected with the ATLAS detector at the
                      LHC. The $4\ell$ events are produced in the decays of
                      resonant $Z$ and Higgs bosons and the non-resonant $ZZ$
                      continuum originating from $q\bar q$, $gg$, and $qg$ initial
                      states. A total of 476 signal candidate events are observed
                      with a background expectation of $26.2 \pm 3.6$ events,
                      enabling the measurement of the integrated cross section and
                      the differential cross section as a function of the
                      invariant mass and transverse momentum of the four-lepton
                      system. In the mass range above $180$ GeV, assuming the
                      theoretical constraint on the $q\bar q$ production cross
                      section calculated with perturbative NNLO QCD and NLO
                      electroweak corrections, the signal strength of the
                      gluon-fusion component relative to its leading-order
                      prediction is determined to be $\mu_{gg}=2.4 \pm 1.0 (stat.)
                      \pm 0.5 (syst.)\pm 0.8 (theory)$.},
      cin          = {ATLAS},
      cid          = {I:(DE-H253)ATLAS-20120731},
      pnm          = {611 - Fundamental Particles and Forces (POF3-611)},
      pid          = {G:(DE-HGF)POF3-611},
      experiment   = {EXP:(DE-H253)LHC-Exp-ATLAS-20150101},
      typ          = {PUB:(DE-HGF)25 / PUB:(DE-HGF)15},
      eprint       = {1509.07844},
      howpublished = {arXiv:1509.07844},
      archivePrefix = {arXiv},
      SLACcitation = {$\%\%CITATION$ = $arXiv:1509.07844;\%\%$},
      url          = {https://bib-pubdb1.desy.de/record/275237},
}