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Search for Flavor-Changing Neutral Current Interactions of the Top Quark and Higgs Boson in Final States with Two Photons in Proton-Proton Collisions at s =13 TeV

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Proton-proton interactions resulting in final states with two photons are studied in a search for the signature of flavor-changing neutral current interactions of top quarks (t) and Higgs bosons (H). The analysis is based on data collected at a center-of-mass energy of 13 TeV with the CMS detector at the LHC, corresponding to an integrated luminosity of 137 fb-1. No significant excess above the background prediction is observed. Upper limits on the branching fractions (B) of the top quark decaying to a Higgs boson and an up (u) or charm (c) quark are derived through a binned fit to the diphoton invariant mass spectrum. The observed (expected) 95% confidence level upper limits are found to be 0.019% (0.031%) for B(t→Hu) and 0.073% (0.051%) for B(t→Hc). These are the strictest upper limits yet determined. © 2022 CERN.

Anahtar Kelimeler

BosonsPhotonsTellurium compoundsA-centerFinal stateFlavor changing neutral currentsHiggs bosonNeutral current interactionsProton interactionsProton proton collisionsTop quarksTwo photonUpper limitsarticlebosonflavorluminancemass spectrometryphotonpredictionquark
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AlanDeğerDil
dc.contributor.authorTumasyan, A.
dc.contributor.authorAdam, W.
dc.contributor.authorAndrejkovic, J.W.
dc.contributor.authorBergauer, T.
dc.contributor.authorChatterjee, S.
dc.contributor.authorDragicevic, M.
dc.contributor.authorEscalante Del Valle, A.
dc.contributor.authorFrühwirth, R.
dc.contributor.authorJeitler, M.
dc.contributor.authorKrammer, N.
dc.contributor.authorLechner, L.
dc.contributor.authorLiko, D.
dc.contributor.authorMikulec, I.
dc.contributor.authorPaulitsch, P.
dc.contributor.authorPitters, F.M.
dc.contributor.authorSchieck, J.
dc.contributor.authorSchöfbeck, R.
dc.contributor.authorSchwarz, D.
dc.contributor.authorTempl, S.
dc.contributor.authorWaltenberger, W.
dc.contributor.authorWulz, C.-E.
dc.contributor.authorChekhovsky, V.
dc.contributor.authorLitomin, A.
dc.contributor.authorMakarenko, V.
dc.contributor.authorDarwish, M.R.
dc.contributor.authorDe Wolf, E.A.
dc.contributor.authorJanssen, T.
dc.contributor.authorKello, T.
dc.contributor.authorLelek, A.
dc.contributor.authorRejeb Sfar, H.
dc.contributor.authorVan Mechelen, P.
dc.contributor.authorVan Putte, S.
dc.contributor.authorVan Remortel, N.
dc.contributor.authorBlekman, F.
dc.contributor.authorBols, E.S.
dc.contributor.authorD’Hondt, J.
dc.contributor.authorDelcourt, M.
dc.contributor.authorEl Faham, H.
dc.contributor.authorLowette, S.
dc.contributor.authorMoortgat, S.
dc.contributor.authorMorton, A.
dc.contributor.authorMüller, D.
dc.contributor.authorSahasransu, A.R.
dc.contributor.authorTavernier, S.
dc.contributor.authorVan Doninck, W.
dc.contributor.authorVan Mulders, P.
dc.contributor.authorBeghin, D.
dc.contributor.authorBilin, B.
dc.contributor.authorClerbaux, B.
dc.contributor.authorDe Lentdecker, G.
dc.date.accessioned2026-10-18T20:27:44.167777166Z
dc.date.available2026-10-18T20:27:44.167777166Z
dc.date.issued2022
dc.description.abstractProton-proton interactions resulting in final states with two photons are studied in a search for the signature of flavor-changing neutral current interactions of top quarks (t) and Higgs bosons (H). The analysis is based on data collected at a center-of-mass energy of 13 TeV with the CMS detector at the LHC, corresponding to an integrated luminosity of 137 fb-1. No significant excess above the background prediction is observed. Upper limits on the branching fractions (B) of the top quark decaying to a Higgs boson and an up (u) or charm (c) quark are derived through a binned fit to the diphoton invariant mass spectrum. The observed (expected) 95% confidence level upper limits are found to be 0.019% (0.031%) for B(t→Hu) and 0.073% (0.051%) for B(t→Hc). These are the strictest upper limits yet determined. © 2022 CERN.
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: 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); MoER, ERC PUT and ERDF (Estonia); Academy of Finland, MEC, and HIP (Finland); CEA and CNRS/IN2P3 (France); BMBF, DFG, and HGF (Germany); GSRI (Greece); NKFIA (Hungary); DAE and DST (India); IPM (Iran); SFI (Ireland); INFN (Italy); MSIP and NRF (Republic of Korea); MES (Latvia); LAS (Lithuania); MOE and UM (Malaysia); BUAP, CINVESTAV, CONACYT, LNS, SEP, and UASLP-FAI (Mexico); MOS (Montenegro); MBIE (New Zealand); PAEC (Pakistan); MSHE and NSC (Poland); FCT (Portugal); JINR (Dubna); MON, RosAtom, RAS, RFBR, and NRC KI (Russia); MESTD (Serbia); SEIDI, CPAN, PCTI, and FEDER (Spain); MOSTR (Sri Lanka); Swiss Funding Agencies (Switzerland); MST (Taipei); ThEPCenter, IPST, STAR, and NSTDA (Thailand); TUBITAK and TAEK (Turkey); NASU (Ukraine); STFC (United Kingdom); DOE and NSF (USA).
dc.identifier.doi10.1103/physrevlett.129.032001
dc.identifier.issn0031-9007
dc.identifier.issue3
dc.identifier.pmid35905365
dc.identifier.scopus2-s2.0-85135214262
dc.identifier.startpage032001
dc.identifier.urihttps://rdlopen.rawdatalibrary.net/r/ebyu/12876
dc.identifier.volume129
dc.language.isoen
dc.publisherAmerican Physical Society
dc.relation.ispartofPhysical Review Letters
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectBosons
dc.subjectPhotons
dc.subjectTellurium compounds
dc.subjectA-center
dc.subjectFinal state
dc.subjectFlavor changing neutral currents
dc.subjectHiggs boson
dc.subjectNeutral current interactions
dc.subjectProton interactions
dc.subjectProton proton collisions
dc.subjectTop quarks
dc.subjectTwo photon
dc.subjectUpper limits
dc.subjectarticle
dc.subjectboson
dc.subjectflavor
dc.subjectluminance
dc.subjectmass spectrometry
dc.subjectphoton
dc.subjectprediction
dc.subjectquark
dc.titleSearch for Flavor-Changing Neutral Current Interactions of the Top Quark and Higgs Boson in Final States with Two Photons in Proton-Proton Collisions at s =13 TeV
dc.typeArticle
dspace.entity.typePublication
rdl.citation.scopus34
rdl.oa.statusgold
rdl.source.indexSCOPUS