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@ARTICLE{Hayrapetyan:639719,
      author       = {Hayrapetyan, Aram and others},
      collaboration = {{CMS Collaboration}},
      title        = {{S}imultaneous probe of the charm and bottom quark {Y}ukawa
                      couplings using tt{H} events},
      reportid     = {PUBDB-2025-04632, arXiv:2509.22535. CMS-HIG-24-018.
                      CERN-EP-2025-202},
      year         = {2025},
      note         = {Submitted to Physical Review Letters. All figures and
                      tables can be found at
                      http://cms-results.web.cern.ch/cms-results/public-results/publications/HIG-24-018
                      (CMS Public Pages)},
      abstract     = {A search for the standard model Higgs boson decaying to a
                      charm quark-antiquark pair, H $\to$$\mathrm{c\bar{c}}$,
                      produced in association with a top quark-antiquark pair
                      ($\mathrm{t\bar{t}}$H) is presented. The search is performed
                      with data from proton-proton collisions at $\sqrt{s}$ = 13
                      TeV, corresponding to an integrated luminosity of 138
                      fb$^{-1}$. Advanced machine learning techniques are employed
                      for jet flavor identification and event classification. The
                      Higgs boson decay to a bottom quark-antiquark pair is
                      measured simultaneously and the observed
                      $\mathrm{t\bar{t}}$H bb event rate relative to the standard
                      model expectation is 0.91$\pm^{+0.26}_{-0.22}$. The observed
                      (expected) upper limit on the product of production cross
                      section and branching fraction
                      $σ$($\mathrm{t\bar{t}}$H)$\mathcal{B}$(H
                      $\to$$\mathrm{c\bar{c}}$) is 0.11
                      (0.13$\pm^{+0.06}_{-0.04}$) pb at 95\% confidence level,
                      corresponding to 7.8 (8.7$\pm^{+4.0}_{-2.6}$) times the
                      standard model prediction. When combined with the previous
                      search for H $\to$ $\mathrm{c\bar{c}}$ via associated
                      production with a W or Z boson, the observed (expected) 95\%
                      confidence interval on the Higgs-charm Yukawa coupling
                      modifier, $κ_\mathrm{c}$, is $\lvert{κ_\mathrm{c}}\rvert$
                      $\lt$ 3.5 (2.7), the most stringent constraint to date.},
      cin          = {CMS},
      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)25},
      eprint       = {2509.22535},
      howpublished = {arXiv:2509.22535},
      archivePrefix = {arXiv},
      SLACcitation = {$\%\%CITATION$ = $arXiv:2509.22535;\%\%$},
      doi          = {10.3204/PUBDB-2025-04632},
      url          = {https://bib-pubdb1.desy.de/record/639719},
}