Partial wave analysis of $ψ(3686)\rightarrow K^{+}K^{-}η$
Creators: name: BESIII Collaboration
name: Ablikim, M.
name: Achasov, M. N.
name: Adlarson, P.
name: Ahmed, S.
name: Albrecht, M.
name: Alekseev, M.
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name: Ferroli, R. Baldini
name: Balossino, I.
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name: Begzsuren, K.
name: Bennett, J. V.
name: Berger, N.
name: Bertani, M.
name: Bettoni, D.
name: Bianchi, F.
name: Biernat, J
name: s, J. Blom
name: Boyko, I.
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name: Calcaterra, A.
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name: Cao, N.
name: Cetin, S. A.
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name: Chang, J. F.
name: Chang, W. L.
name: Chelkov, G.
name: Chen, D. Y.
name: Chen, G.
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name: Chen, J. C.
name: Chen, M. L.
name: Chen, S. J.
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name: Cheng, W.
name: Cibinetto, G.
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name: Feldbauer, F .
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name: Fritsch, M.
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name: Gao, Z.
name: Garillon, B.
name: Garzia, I.
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name: Gilman, A.
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name: Guskov, A.
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name: Harris, F. A.
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name: Zhang, Yao
name: Zhang, Yi
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name: Zhou, X. R.
name: Zhou, Xiaoyu
name: Zhou, Xu
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name: Zhu, J.
name: Zhu, J.
name: Zhu, K.
name: Zhu, K. J.
name: Zhu, S. H.
name: Zhu, W. J.
name: Zhu, X. L.
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name: Zou, J. H.
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences
subject: FOS: Physical sciences

description: Using a sample of $(448.1\pm2.9)\times10^6$ $ψ(3686)$ events collected with the BESIII detector, we perform the first partial wave analysis of $ψ(3686)\rightarrow K^+K^-η$. In addition to the well established states, $ϕ(1020)$, $ϕ(1680)$, and $K_3^*(1780)$, contributions from $X(1750)$, $ρ(2150)$, $ρ_3(2250)$, and $K^*_2(1980)$ are also observed. The $X(1750)$ state is determined to be a $1^{--}$ resonance. The simultaneous observation of the $ϕ(1680)$ and $X(1750)$ indicates that the $X(1750)$, with previous observations in photoproduction, is distinct from the $ϕ(1680)$. The masses, widths, branching fractions of $ψ(3686)\rightarrow K^+K^-η$ and the intermediate resonances are also measured.
description: 12 pages, 11 figures, 5 tables, published in PRD