Simultaneous Probe of the Charm and Bottom Quark Yukawa Couplings Using t(t)over-barH Events

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dc.contributor.authorHayrapetyan, A.
dc.contributor.authorMakarenko, V.
dc.contributor.authorTumasyan, A.
dc.contributor.authorAdam, W.
dc.contributor.authorAndrejkovic, J. W.
dc.contributor.authorBenato, L.
dc.contributor.authorBergauer, T.
dc.date.accessioned2026-04-25T14:20:11Z
dc.date.available2026-04-25T14:20:11Z
dc.date.issued2026
dc.departmentSinop Üniversitesi
dc.description.abstractA search for the standard model Higgs boson decaying to a charm quark-antiquark pair, H -> c (c) over bar, produced in association with a top quark-antiquark pair (t (t) over barH) is presented. The search is performed with data from proton-proton collisions at root 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 t (t) over barH(H -> b (b) over bar) event rate relative to the standard model expectation is 0.91(+0.26)(-0.22). The observed (expected) upper limit on the product of production cross section and branching fraction sigma(t (t) over barH) B(H -> c (c) over bar) 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 -> c (c) over bar via associated production with a W or Z boson, the observed (expected) 95% confidence interval on the Higgs-charm Yukawa coupling modifier, kappa(c), is vertical bar kappa(c)vertical bar < 3.5 (2.7), the most stringent constraint to date.
dc.description.sponsorshipBMBWF (Austria); FWF (Austria); FNRS (Belgium); FWO (Belgium); CNPq (Brazil); CAPES (Brazil); FAPERJ (Brazil); FAPERGS (Brazil); FAPESP (Brazil); MES (Bulgaria); BNSF (Bulgaria); CERN; CAS (China); MoST (China); NSFC (China); MINCIENCIAS (Colombia); MSES (Croatia); CSF (Croatia); RIF (Cyprus); SENESCYT (Ecuador); MoER (Estonia); ERC PUT (Estonia); ERDF (Estonia); Academy of Finland (Finland); MEC (Finland); HIP (Finland); CEA (France); CNRS/IN2P3 (France); BMBF (Germany); DFG (Germany); HGF (Germany); GSRI (Greece); NKFIH (Hungary); DAE (India); DST (India); IPM (Iran); SFI (Ireland); INFN (Italy); MSIP (Republic of Korea); NRF (Republic of Korea); MES (Latvia); LAS (Lithuania); MOE (Malaysia); UM (Malaysia); BUAP (Mexico); CINVESTAV (Mexico); CONACYT (Mexico); LNS (Mexico); SEP (Mexico); UASLP-FAI (Mexico); MOS (Montenegro); MBIE (New Zealand); PAEC (Pakistan); MES (Poland); NSC (Poland); FCT (Portugal); J MESTD (Serbia); MCIN/AEI (Spain); PCTI (Spain); MOSTR (Sri Lanka); Swiss Funding Agency (Switzerland); MST (Taipei); MHESI (Thailand); NSTDA (Thailand); TUBITAK (Turkey); TENMAK (Turkey); NASU (Ukraine); STFC (United Kingdom); DOE (USA); NSF (USA)
dc.description.sponsorshipWe congratulate our colleagues in the CERN accelerator departments for the excellent performance of the LHC and thank the technical and administrative staffs at CERN and at other CMS institutes for their contributions to the success of the CMS effort. In addition, we gratefully acknowledge the computing centers and personnel of the Worldwide LHC Computing Grid and other centers for delivering so effectively the computing infrastructure essential to our analyses. Finally, we acknowledge the enduring support for the construction and operation of the LHC, the CMS detector, and the supporting computing infrastructure provided by the following funding agencies: SC (Armenia), BMBWF and FWF (Austria); FNRS and FWO (Belgium); CNPq, CAPES, FAPERJ, FAPERGS, and FAPESP (Brazil); MES and BNSF (Bulgaria); CERN; CAS, MoST, and NSFC (China); MINCIENCIAS (Colombia); MSES and CSF (Croatia); RIF (Cyprus); SENESCYT (Ecuador); ERC PRG, TARISTU24-TK10, and MoER TK202 (Estonia); Academy of Finland, MEC, and HIP (Finland); CEA and CNRS/IN2P3 (France); SRNSF (Georgia); BMFTR, DFG, and HGF (Germany); GSRI (Greece); NKFIH (Hungary); DAE and DST (India); IPM (Iran); SFI (Ireland); INFN (Italy); MSIT and NRF (Republic of Korea); MES (Latvia); LMTLT (Lithuania); MOE and UM (Malaysia); BUAP, CINVESTAV, CONACYT, LNS, SEP, and UASLP-FAI (Mexico); MOS (Montenegro); MBIE (New Zealand); PAEC (Pakistan); MES, NSC, and NAWA (Poland); FCT (Portugal); MESTD (Serbia); MICIU/AEI and PCTI (Spain); MOSTR (Sri Lanka); Swiss Funding Agencies (Switzerland); MST (Taipei); MHESI (Thailand); TUBITAK and TENMAK (Turkiye); NASU (Ukraine); STFC (United Kingdom); DOE and NSF (USA).
dc.identifier.doi10.1103/9nwb-splk
dc.identifier.issn0031-9007
dc.identifier.issn1079-7114
dc.identifier.issue1
dc.identifier.orcid0000-0001-8333-4302
dc.identifier.orcid0000-0002-2633-6712
dc.identifier.orcid0009-0005-9565-6399
dc.identifier.orcid0000-0001-6005-0243
dc.identifier.orcid0000-0002-2816-7713
dc.identifier.orcid0009-0008-1661-3537
dc.identifier.orcid0000-0003-3904-0571
dc.identifier.pmid41586649
dc.identifier.scopus2-s2.0-105027456400
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1103/9nwb-splk
dc.identifier.urihttps://hdl.handle.net/11486/8419
dc.identifier.volume136
dc.identifier.wosWOS:001672341100001
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.language.isoen
dc.publisherAmer Physical Soc
dc.relation.ispartofPhysical Review Letters
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_WOS_20260420
dc.titleSimultaneous Probe of the Charm and Bottom Quark Yukawa Couplings Using t(t)over-barH Events
dc.typeArticle

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