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Measurement of 𝑊⁢𝑊⁢𝑍 and 𝑍⁢𝐻 Production Cross Sections at √𝑠 =13 and 13.6 TeV

ArticleAçık Erişim

Özet

A measurement is presented of the cross section in proton-proton collisions for the production of two (Formula presented) bosons and one (Formula presented) boson. It is based on data recorded by the CMS experiment at the CERN LHC at center-of-mass energies (Formula presented) and 13.6 TeV, corresponding to an integrated luminosity of (Formula presented). Events with four charged leptons (electrons or muons) in the final state are selected. Both nonresonant (Formula presented) production and (Formula presented) production, with the Higgs boson decaying into two (Formula presented) bosons, are reported. For the first time, the two processes are measured separately in a simultaneous fit. Combining the two modes, signal strengths relative to the standard model (SM) predictions of (Formula presented) and (Formula presented) are measured for (Formula presented) and 13.6 TeV, respectively. The observed (expected) significance for the triboson signal is 3.8 (2.5) standard deviations for (Formula presented), thus providing the first evidence for triboson production at this center-of-mass energy. Combining the two modes and the two center-of-mass energies, the inclusive signal strength relative to the SM prediction is measured to be (Formula presented), with an observed (expected) significance of 4.5 (5.0) standard deviations. © 2025 CERN, for the CMS Collaboration.

Anahtar Kelimeler

AstrophysicsCharged particlesStatisticsTellurium compoundsCenter-of-mass energiesCentre-of-mass energiesIntegrated luminosityMeasurements ofModel predictionProduction cross sectionProton proton collisionsSignal strengthsStandard deviationThe standard modelarticlehumanmuonBosons
RDL Kalıcı Bağlantı (PID)
https://rdlopen.rawdatalibrary.net/r/ebyu/10993Resmi atıflarda kullanılan kalıcı adres
DOI
https://doi.org/10.1103/6z3d-zjw4Yayıncı 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.authorDamanakis, K.
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.authorOcampo Henao, D.
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.date.accessioned2026-10-18T20:26:06.173932587Z
dc.date.available2026-10-18T20:26:06.173932587Z
dc.date.issued2025
dc.description.abstractA measurement is presented of the cross section in proton-proton collisions for the production of two (Formula presented) bosons and one (Formula presented) boson. It is based on data recorded by the CMS experiment at the CERN LHC at center-of-mass energies (Formula presented) and 13.6 TeV, corresponding to an integrated luminosity of (Formula presented). Events with four charged leptons (electrons or muons) in the final state are selected. Both nonresonant (Formula presented) production and (Formula presented) production, with the Higgs boson decaying into two (Formula presented) bosons, are reported. For the first time, the two processes are measured separately in a simultaneous fit. Combining the two modes, signal strengths relative to the standard model (SM) predictions of (Formula presented) and (Formula presented) are measured for (Formula presented) and 13.6 TeV, respectively. The observed (expected) significance for the triboson signal is 3.8 (2.5) standard deviations for (Formula presented), thus providing the first evidence for triboson production at this center-of-mass energy. Combining the two modes and the two center-of-mass energies, the inclusive signal strength relative to the SM prediction is measured to be (Formula presented), with an observed (expected) significance of 4.5 (5.0) standard deviations. © 2025 CERN, for the CMS Collaboration.
dc.identifier.doi10.1103/6z3d-zjw4
dc.identifier.issn0031-9007
dc.identifier.issue9
dc.identifier.pmid40952229
dc.identifier.scopus2-s2.0-105016054190
dc.identifier.startpage091802
dc.identifier.urihttps://rdlopen.rawdatalibrary.net/r/ebyu/10993
dc.identifier.volume135
dc.language.isoen
dc.publisherAmerican Physical Society
dc.relation.ispartofPhysical Review Letters
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectAstrophysics
dc.subjectCharged particles
dc.subjectStatistics
dc.subjectTellurium compounds
dc.subjectCenter-of-mass energies
dc.subjectCentre-of-mass energies
dc.subjectIntegrated luminosity
dc.subjectMeasurements of
dc.subjectModel prediction
dc.subjectProduction cross section
dc.subjectProton proton collisions
dc.subjectSignal strengths
dc.subjectStandard deviation
dc.subjectThe standard model
dc.subjectarticle
dc.subjecthuman
dc.subjectmuon
dc.subjectBosons
dc.titleMeasurement of 𝑊⁢𝑊⁢𝑍 and 𝑍⁢𝐻 Production Cross Sections at √𝑠 =13 and 13.6 TeV
dc.typeArticle
dspace.entity.typePublication
rdl.citation.scopus6
rdl.oa.statusgold
rdl.source.indexSCOPUS