Observation of the Ξb- → ψ(2S)Ξ- decay and studies of the Ξb (5945)0 baryon in proton-proton collisions at √s=13 TeV

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dc.authoridRadogna, Raffaella/0000-0002-1094-5038
dc.authoridShopova, Mariana/0000-0001-6664-2493
dc.authoridMalawski, Maciej/0000-0001-6005-0243
dc.authoridTedeschi, Tommaso/0000-0002-7125-2905
dc.authoridMilosevic, Vukasin/0000-0002-1173-0696
dc.authoridDella Ricca, Giuseppe/0000-0003-2831-6982
dc.authoridMacchiolo, Anna/0000-0003-0199-6957
dc.contributor.authorHayrapetyan, A.
dc.contributor.authorTumasyan, A.
dc.contributor.authorAdam, W.
dc.contributor.authorAndrejkovic, J. W.
dc.contributor.authorBergauer, T.
dc.contributor.authorChatterjee, S.
dc.contributor.authorDamanakis, K.
dc.date.accessioned2025-03-20T09:50:52Z
dc.date.available2025-03-20T09:50:52Z
dc.date.issued2024
dc.departmentİzmir Bakırçay Üniversitesi
dc.description.abstractThe first observation of the decay Xi(-)(b) -> psi(2S)Xi(-) and measurement of the branching ratio of Xi(-)(b) -> psi(2S)Xi(-) to Xi(-)(b) -> J/psi Xi(-) are presented. The J/psi and psi(2S) mesons are reconstructed using their dimuon decay modes. The results are based on proton-proton colliding beam data from the LHC collected by the CMS experiment at root s = 13 TeV in 2016-2018, corresponding to an integrated luminosity of 140 fb(-1). The branching fraction ratio is measured to be B(Xi(-)(b) -> psi(2S)Xi(-))/B(Xi(-)(b) -> J/psi Xi(-)) = 0.84(-0.19)(+0.21)(stat) +/- 0.10(syst) +/- 0.02(B), where the last uncertainty comes from the uncertainties in the branching fractions of the charmonium states. New measurements of the Xi(b) (5945)(0) baryon mass and natural width are also presented, using the Xi(-)(b)pi(+) final state, where the Xi(-)(b) baryon is reconstructed through the decays J/psi Xi(-), psi(2S)Xi(-), J/psi Lambda K-, and J/psi Sigma K-0(-). Finally, the fraction of Xi(-)(b) baryons produced from Xi(b) (5945)(0) decays is determined.
dc.identifier.doi10.1103/PhysRevD.110.012002
dc.identifier.issn2469-9985
dc.identifier.issn2469-9993
dc.identifier.issue1
dc.identifier.scopus2-s2.0-85199908415
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1103/PhysRevD.110.012002
dc.identifier.urihttps://hdl.handle.net/20.500.14034/2353
dc.identifier.volume110
dc.identifier.wosWOS:001290702200001
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherAmer Physical Soc
dc.relation.ispartofPhysical Review C
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_WOS_20250319
dc.subjectQed Radiative-Corrections
dc.subjectUniversal Monte-Carlo
dc.subjectHeavy Baryons
dc.subjectWeak Decays
dc.subjectPhotos
dc.subjectModel
dc.titleObservation of the Ξb- → ψ(2S)Ξ- decay and studies of the Ξb (5945)0 baryon in proton-proton collisions at √s=13 TeV
dc.typeArticle

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