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@ARTICLE{Sirunyan:408747,
      author       = {Sirunyan, Albert M and others},
      collaboration = {{CMS Collaboration}},
      title        = {{S}earch for an ${L}_{\mu}-{L}_{\tau}$ gauge boson using
                      {Z}$\to4\mu$ events in proton-proton collisions at $\sqrt{s}
                      =$ 13 {T}e{V}},
      reportid     = {PUBDB-2018-03088, arXiv:1808.03684. CMS-EXO-18-008.
                      CERN-EP-2018-208},
      year         = {2018},
      abstract     = {A search for a narrow Z$'$ gauge boson with a mass between
                      5 and 70 GeV resulting from an $L_{\mu}-L_{\tau}$ $U(1)$
                      local gauge symmetry is reported. Events containing four
                      muons with an invariant mass near the standard model Z boson
                      mass are analyzed, and the selection is further optimized to
                      be sensitive to the events that may contain
                      Z$\to$Z$'\mu\mu\to4\mu$ decays. A data sample of
                      proton-proton collisions at a center-of-mass energy of 13
                      TeV is used, corresponding to an integrated luminosity of
                      77.3 fb$^{-1}$ recorded in 2016 and 2017 by the CMS detector
                      at the LHC. Theories that predict such a particle have been
                      proposed as an explanation of various experimental
                      discrepancies, including the lack of a dark matter signal in
                      direct-detection experiments, tension in the measurement of
                      the anomalous magnetic moment of the muon, and reports of
                      possible lepton flavor universality violation in B meson
                      decays. The event yields are consistent with the standard
                      model predictions. Upper limits of 10$^{-8}$-10$^{-7}$ at
                      95\% confidence level are set on the product of branching
                      fractions $\mathcal{B}$(Z $\to$ Z$' \mu \mu$)
                      $\mathcal{B}$(Z$' \to\mu \mu$), depending on the Z$'$ mass,
                      which excludes a Z$'$ boson coupling strength to muons above
                      0.004-0.3. These are the first dedicated limits on
                      $L_{\mu}-L_{\tau}$ models at the LHC and result in a
                      significant increase in the excluded model parameter space.},
      cin          = {CMS},
      cid          = {I:(DE-H253)CMS-20120731},
      pnm          = {611 - Fundamental Particles and Forces (POF3-611)},
      pid          = {G:(DE-HGF)POF3-611},
      experiment   = {EXP:(DE-H253)LHC-Exp-CMS-20150101},
      typ          = {PUB:(DE-HGF)25 / PUB:(DE-HGF)29},
      eprint       = {1808.03684},
      howpublished = {arXiv:1808.03684},
      archivePrefix = {arXiv},
      SLACcitation = {$\%\%CITATION$ = $arXiv:1808.03684;\%\%$},
      doi          = {10.3204/PUBDB-2018-03088},
      url          = {https://bib-pubdb1.desy.de/record/408747},
}