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@ARTICLE{Aad:483088,
      author       = {Aad, Georges and others},
      collaboration = {{ATLAS Collaboration}},
      title        = {{D}irect constraint on the {H}iggs-charm coupling from a
                      search for {H}iggs boson decays into charm quarks with the
                      {ATLAS} detector},
      address      = {Heidelberg},
      publisher    = {Springer},
      reportid     = {PUBDB-2022-05110, arXiv:2201.11428. CERN-EP-2021-251},
      year         = {2022},
      note         = {Eur. Phys. J. C 82 (2022) 717. 58 pages in total, author
                      list starting page 43, 17 figures, 5 tables, published in
                      EPJC. All figures including auxiliary figures are available
                      at
                      http://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/HIGG-2021-12},
      abstract     = {A search for the Higgs boson decaying into a pair of charm
                      quarks is presented. The analysis uses proton-proton
                      collisions to target the production of a Higgs boson in
                      association with a leptonically decaying $W$ or $Z$ boson.
                      The dataset delivered by the LHC at a centre-of-mass energy
                      of $\sqrt{s}=13$ TeV and recorded by the ATLAS detector
                      corresponds to an integrated luminosity of 139 fb$^{-1}$.
                      Flavour-tagging algorithms are used to identify jets
                      originating from the hadronisation of charm quarks. The
                      analysis method is validated with the simultaneous
                      measurement of $WW,WZ$ and $ZZ$ production, with observed
                      (expected) significances of $2.6$ ($2.2$) standard
                      deviations above the background-only prediction for the
                      $(W/Z)Z(\to c\bar{c})$ process and $3.8$ ($4.6$) standard
                      deviations for the $(W/Z)W(\to cq)$ process. The $(W/Z)H(\to
                      c \bar{c})$ search yields an observed (expected) upper limit
                      of $26$ ($31$) times the predicted Standard Model
                      cross-section times branching fraction for a Higgs boson
                      with a mass of 125 GeV, corresponding to an observed
                      (expected) constraint on the charm Yukawa coupling modifier
                      $|\kappa_c| < 8.5 (12.4)$, at the 95\% confidence level. A
                      combination with the ATLAS $(W/Z)H, H\to b\bar{b}$ analysis
                      is performed, allowing the ratio $\kappa_c / \kappa_b$ to be
                      constrained without assumptions about the width of the Higgs
                      boson. The ratio is constrained to be $|\kappa_c / \kappa_b|
                      < 4.5$ at the 95\% confidence level, smaller than the ratio
                      of the $b$- and $c$-quark masses, and therefore determines
                      the Higgs-charm coupling to be weaker than the Higgs-bottom
                      coupling at the 95\% confidence level.},
      keywords     = {p p: colliding beams (INSPIRE) / Higgs particle: hadronic
                      decay (INSPIRE) / Higgs particle: hadroproduction (INSPIRE)
                      / Higgs particle: width (INSPIRE) / charm: pair production
                      (INSPIRE) / jet: charm (INSPIRE) / charm: particle
                      identification (INSPIRE) / charm: hadronization (INSPIRE) /
                      p p: scattering (INSPIRE) / coupling: Yukawa (INSPIRE) /
                      coupling constant: upper limit (INSPIRE) / ATLAS (INSPIRE) /
                      channel cross section: branching ratio: upper limit
                      (INSPIRE) / CERN LHC Coll (INSPIRE) / track data analysis:
                      jet (INSPIRE) / data analysis method (INSPIRE) /
                      experimental results (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)25},
      eprint       = {2201.11428},
      howpublished = {arXiv:2201.11428},
      archivePrefix = {arXiv},
      SLACcitation = {$\%\%CITATION$ = $arXiv:2201.11428;\%\%$},
      doi          = {10.3204/PUBDB-2022-05110},
      url          = {https://bib-pubdb1.desy.de/record/483088},
}