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Search for charged lepton flavor violating Z and Z' boson decays in proton-proton collisions at [Formula Presented]

Review ArticleAçık Erişim

Özet

A search for flavor violating decays of the Z boson to charged leptons is performed using data from proton-proton collisions at [Formula Presented] TeVcollected with the CMS detector at the LHC,corresponding to an integrated luminosity of 138 fb−1. Each of the decays [Formula Presented] isconsidered. The data are consistent with the backgrounds expected from standard model processes. For the [Formula Presented] channel the observed (expected) 95% confidence level upper limit on the branching fraction is [Formula Presented], which is the most stringent direct limit to date on this process; the corresponding limits for the [Formula Presented] channels are [Formula Presented], respectively. Additionally, the eμ final state is used to search for lepton flavor violating decays of Z' resonances in the mass range from 110 to 500 GeV. No significant excess is observed above the predicted background levels. © 2025 CERN, for the CMS Collaboration

Anahtar Kelimeler

experimentmechanical shellingnumerical simulationproductivityqualityregression modelsseparationspecific energy
RDL Kalıcı Bağlantı (PID)
https://rdlopen.rawdatalibrary.net/r/ebyu/11301Resmi atıflarda kullanılan kalıcı adres
DOI
https://doi.org/10.1103/8lw4-6lykYayıncı resmi DOI adresi
Tam Kayıt
AlanDeğerDil
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.contributor.authorDragicevic, M.
dc.contributor.authorGiordano, C.
dc.contributor.authorHussain, P.S.
dc.contributor.authorJeitler, M.
dc.contributor.authorKrammer, N.
dc.contributor.authorLi, A.
dc.contributor.authorLiko, D.
dc.contributor.authorMikulec, I.
dc.contributor.authorSchieck, J.
dc.contributor.authorSchöfbeck, R.
dc.contributor.authorSchwarz, D.
dc.contributor.authorShooshtari, M.
dc.contributor.authorSonawane, M.
dc.contributor.authorWaltenberger, W.
dc.contributor.authorWulz, C.-E.
dc.contributor.authorJanssen, T.
dc.contributor.authorKwon, H.
dc.contributor.authorHenao, D. Ocampo
dc.contributor.authorVan Laer, T.
dc.contributor.authorVan Mechelen, P.
dc.contributor.authorBierkens, J.
dc.contributor.authorBreugelmans, N.
dc.contributor.authorD’Hondt, J.
dc.contributor.authorDansana, S.
dc.contributor.authorDe Moor, A.
dc.contributor.authorDelcourt, M.
dc.contributor.authorHeyen, F.
dc.contributor.authorHong, Y.
dc.contributor.authorKashko, P.
dc.contributor.authorLowette, S.
dc.contributor.authorMakarenko, I.
dc.contributor.authorMüller, D.
dc.contributor.authorSong, J.
dc.contributor.authorTavernier, S.
dc.contributor.authorTytgat, M.
dc.contributor.authorVan Onsem, G.P.
dc.contributor.authorVan Putte, S.
dc.contributor.authorVannerom, D.
dc.contributor.authorBilin, B.
dc.contributor.authorClerbaux, B.
dc.contributor.authorDas, A.K.
dc.contributor.authorDe Bruyn, I.
dc.contributor.authorDe Lentdecker, G.
dc.date.accessioned2026-10-18T20:26:22.388127398Z
dc.date.available2026-10-18T20:26:22.388127398Z
dc.date.issued2025
dc.description.abstractA search for flavor violating decays of the Z boson to charged leptons is performed using data from proton-proton collisions at [Formula Presented] TeVcollected with the CMS detector at the LHC,corresponding to an integrated luminosity of 138 fb−1. Each of the decays [Formula Presented] isconsidered. The data are consistent with the backgrounds expected from standard model processes. For the [Formula Presented] channel the observed (expected) 95% confidence level upper limit on the branching fraction is [Formula Presented], which is the most stringent direct limit to date on this process; the corresponding limits for the [Formula Presented] channels are [Formula Presented], respectively. Additionally, the eμ final state is used to search for lepton flavor violating decays of Z' resonances in the mass range from 110 to 500 GeV. No significant excess is observed above the predicted background levels. © 2025 CERN, for the CMS Collaboration
dc.identifier.doi10.1103/8lw4-6lyk
dc.identifier.issn2470-0010
dc.identifier.issue11
dc.identifier.scopus2-s2.0-105032272069
dc.identifier.startpage112011
dc.identifier.urihttps://rdlopen.rawdatalibrary.net/r/ebyu/11301
dc.identifier.volume112
dc.language.isoen
dc.publisherAmerican Physical Society
dc.relation.ispartofPhysical Review D
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectexperiment
dc.subjectmechanical shelling
dc.subjectnumerical simulation
dc.subjectproductivity
dc.subjectquality
dc.subjectregression models
dc.subjectseparation
dc.subjectspecific energy
dc.titleSearch for charged lepton flavor violating Z and Z' boson decays in proton-proton collisions at [Formula Presented]
dc.typeReview Article
dspace.entity.typePublication
rdl.citation.scopus3
rdl.oa.statusgold
rdl.source.indexSCOPUS