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@ARTICLE{Hayrapetyan:645866,
      author       = {Hayrapetyan, Aram and others},
      collaboration = {{CMS Collaboration}},
      title        = {{S}imultaneous {P}robe of the {C}harm and {B}ottom {Q}uark
                      {Y}ukawa {C}ouplings {U}sing tt¯{H} {E}vents},
      journal      = {Physical review letters},
      volume       = {136},
      number       = {1},
      issn         = {0031-9007},
      address      = {College Park, Md.},
      publisher    = {APS},
      reportid     = {PUBDB-2026-00665, arXiv:2509.22535. CMS-HIG-24-018.
                      CERN-EP-2025-202},
      pages        = {011801},
      year         = {2026},
      abstract     = {A search for the standard model Higgs boson decaying to a
                      charm quark-antiquark pair, H→cc¯, produced in
                      association with a top quark-antiquark pair (tt¯H) is
                      presented. The search is performed with data from
                      proton-proton collisions at s=13 TeV, corresponding to an
                      integrated luminosity of 138 fb-1. Advanced machine learning
                      techniques are employed for jet flavor identification and
                      event classification. The Higgs boson decay to a bottom
                      quark-antiquark pair is measured simultaneously and the
                      observed tt¯H(H→bb¯) event rate relative to the standard
                      model expectation is 0.91-0.22+0.26. The observed (expected)
                      upper limit on the product of production cross section and
                      branching fraction σ(tt¯H)B(H→cc¯) is 0.11 (0.13) pb at
                      $95\%$ confidence level, corresponding to 7.8 (8.7) times
                      the standard model prediction. When combined with the
                      previous search for H→cc¯ via associated production with
                      a W or Z boson, the observed (expected) $95\%$ confidence
                      interval on the Higgs-charm Yukawa coupling modifier, κc,
                      is |κc|<3.5 (2.7), the most stringent constraint to date.},
      cin          = {CMS},
      ddc          = {530},
      cid          = {I:(DE-H253)CMS-20120731},
      pnm          = {611 - Fundamental Particles and Forces (POF4-611) /
                      HIDSS-0002 - DASHH: Data Science in Hamburg - Helmholtz
                      Graduate School for the Structure of Matter
                      $(2019_IVF-HIDSS-0002)$ / DFG project G:(GEPRIS)390833306 -
                      EXC 2121: Quantum Universe (390833306)},
      pid          = {G:(DE-HGF)POF4-611 / $G:(DE-HGF)2019_IVF-HIDSS-0002$ /
                      G:(GEPRIS)390833306},
      experiment   = {EXP:(DE-H253)LHC-Exp-CMS-20150101},
      typ          = {PUB:(DE-HGF)16},
      eprint       = {2509.22535},
      howpublished = {arXiv:2509.22535},
      archivePrefix = {arXiv},
      SLACcitation = {$\%\%CITATION$ = $arXiv:2509.22535;\%\%$},
      doi          = {10.1103/9nwb-splk},
      url          = {https://bib-pubdb1.desy.de/record/645866},
}