2026-10-19T01:35:57Zhttps://ebyu-rdlopen.rawdatalibrary.net/oai/request

oai:ebyu-rdlopen.rawdatalibrary.net:ebyu/135682026-10-18T20:28:24Zopenairedrivercom_ebyu_10000col_ebyu_10001

Observation of the Λb 0→J/ψΛϕ decay in proton-proton collisions at s=13TeVSirunyan, A.M.Tumasyan, A.Adam, W.Ambrogi, F.Bergauer, T.Dragicevic, M.Erö, J.Escalantedelvalle, A.Flechl, M.Frühwirth, R.Jeitler, M.Krammer, N.Krätschmer, I.Liko, D.Madlener, T.Mikulec, I.Rad, N.Schieck, J.Schöfbeck, R.Spanring, M.Waltenberger, W.Wulz, C.-E.Zarucki, M.Drugakov, V.Mossolov, V.Suarezgonzalez, J.Darwish, M.R.Dewolf, E.A.Dicroce, D.Janssen, X.Lelek, A.Pieters, M.Rejebsfar, H.Van haevermaet, H.Van mechelen, P.Van putte, S.Van remortel, N.Blekman, F.Bols, E.S.Chhibra, S.S.D'hondt, J.Declercq, J.Lontkovskyi, D.Lowette, S.Marchesini, I.Moortgat, S.Python, Q.Skovpen, K.Tavernier, S.Van doninck, W.b physicsCMSComputingHeavy-flavor spectroscopyThe observation of the Λb 0→J/ψΛϕ decay is reported using proton-proton collision data collected at s=13TeV by the CMS experiment at the LHC in 2018, corresponding to an integrated luminosity of 60fb−1. The ratio of the branching fractions B(Λb 0→J/ψΛϕ)/B(Λb 0→ψ(2S)Λ) is measured to be (8.26±0.90(stat)±0.68(syst)±0.11(B))×10−2, where the first uncertainty is statistical, the second is systematic, and the last uncertainty reflects the uncertainties in the world-average branching fractions of ϕ and ψ(2S) decays to the reconstructed final states. © 2020 The AuthorElsevier B.V.2020Articlehttps://rdlopen.rawdatalibrary.net/r/ebyu/13568https://doi.org/10.1016/j.physletb.2020.1352030370-2693enPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physicsinfo:eu-repo/semantics/openAccessinfo:eu-repo/semantics/articlehttps://ebyu-rdlopen.rawdatalibrary.net/tr/items/ebyu/13568