Partial wave analysis of $J/ψ\to γη^{\prime} η^{\prime}$
Creators: name: BESIII Collaboration
name: Ablikim, M.
name: Achasov, M. N.
name: Adlarson, P.
name: Ahmed, S.
name: Albrecht, M.
name: Aliberti, R.
name: Amoroso, A.
name: An, M. R.
name: An, Q.
name: Bai, X. H.
name: Bai, Y.
name: Bakina, O.
name: Ferroli, R. Baldini
name: Balossino, I.
name: Ban, Y.
name: Begzsuren, K.
name: Berger, N.
name: Bertani, M.
name: Bettoni, D.
name: Bianchi, F.
name: Bloms, J.
name: Bortone, A.
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name: Briere, R. A.
name: Brueggemann, A.
name: Cai, H.
name: Cai, X.
name: Calcaterra, A.
name: Cao, G. F.
name: Cao, N.
name: Cetin, S. A.
name: Chang, J. F.
name: Chang, W. L.
name: Chelkov, G.
name: Chen, G.
name: Chen, H. S.
name: Chen, M. L.
name: Chen, S. J.
name: Chen, X. R.
name: Chen, Y. B.
name: Chen, Z. J.
name: Cheng, W. S.
name: Cibinetto, G.
name: Cossio, F.
name: Cui, J. J.
name: Dai, H. L.
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name: Dbeyssi, A.
name: de Boer, R. E.
name: Dedovich, D.
name: Deng, Z. Y.
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name: Denysenko, I.
name: Destefanis, M.
name: De Mori, F.
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name: Dong, M. Y.
name: Dong, X.
name: Du, S. X.
name: Egorov, P.
name: Fan, Y. L.
name: Fang, J.
name: Fang, S. S.
name: Fang, Y.
name: Farinelli, R.
name: Fava, L.
name: Feldbauer, F.
name: Felici, G.
name: Feng, C. Q.
name: Feng, J. H.
name: Fritsch, M.
name: Fu, C. D.
name: Gao, H.
name: Gao, Y. N.
name: Gao, Yang
name: Garzia, I.
name: Ge, P. T.
name: Ge, Z. W.
name: Geng, C.
name: Gersabeck, E. M.
name: Gilman, A
name: Goetzen, K.
name: Gong, L.
name: Gong, W. X.
name: Gradl, W.
name: Greco, M.
name: Gu, L. M.
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name: Guan, C. Y
name: Guo, A. Q.
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name: Guo, Y. P.
name: Guskov, A.
name: Han, T. T.
name: Han, W. Y.
name: Hao, X. Q.
name: Harris, F. A.
name: He, K. K.
name: He, K. L.
name: Heinsius, F. H.
name: Heinz, C. H.
name: Heng, Y. K.
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name: Holtmann, T.
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name: Jaeger, S.
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name: Maggiora, M.
name: Maldaner, S.
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name: Malik, Q. A.
name: Mangoni, A.
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name: Messchendorp, J. G.
name: Mezzadri, G.
name: Min, T. J.
name: Mitchell, R. E.
name: Mo, X. H.
name: Muchnoi, N. Yu.
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name: Nakhoul, S.
name: Nefedov, Y.
name: Nerling, F.
name: Nikolaev, I. B.
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name: Pelizaeus, M.
name: Peng, H. P.
name: Peters, K.
name: Pettersson, J.
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name: Zhao, Z. G.
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name: Zheng, B.
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name: Zhou, L. P.
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name: Zhou, X. K.
name: Zhou, X. R.
name: Zhou, X. Y.
name: Zhu, J.
name: Zhu, K.
name: Zhu, K. J.
name: Zhu, L. X.
name: Zhu, S. H.
name: Zhu, S. Q.
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Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences
subject: FOS: Physical sciences

description: Using a sample of $(10.09~\pm~0.04)\times10^{9} ~J/ψ$ events collected with the BESIII detector, a partial wave analysis of $J/ψ\toγη^{\prime}η^{\prime}$ is performed. The masses and widths of the observed resonances and their branching fractions are reported. The main contribution is from $J/ψ\rightarrowγf_0(2020)$ with $f_0(2020)\rightarrowη^{\prime}η^{\prime}$, which is found with a significance of greater than 25$σ$. The product branching fraction ${\cal B}\left(J/ψ\rightarrowγf_0(2020)\right)\cdot{\cal B}\left(f_0(2020)\rightarrowη^{\prime}η^{\prime}\right)$ is measured to be $(2.63\pm0.06({\rm stat.})^{+0.31}_{-0.46}({\rm syst.}))\times10^{-4}$.
description: 14 pages, 16 figures