Moment Analysis of the Wide Resonance θ(1720) in J/ψ Radiative Decay

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Yu Hong, Shen Qixing, Zhu Yucan, Zheng Zhipeng and Cheng Zhengdong. Moment Analysis of the Wide Resonance θ(1720) in J/ψ Radiative Decay[J]. Chinese Physics C, 1992, 16(S3): 267-276.
Yu Hong, Shen Qixing, Zhu Yucan, Zheng Zhipeng and Cheng Zhengdong. Moment Analysis of the Wide Resonance θ(1720) in J/ψ Radiative Decay[J]. Chinese Physics C, 1992, 16(S3): 267-276. shu
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Received: 1991-11-29
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    Supported by the National Natural Science Foundation of China.

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Moment Analysis of the Wide Resonance θ(1720) in J/ψ Radiative Decay

  • Institute of High Energy Physics, the Chinese Academy Sciences. Beijing, China
Fund Project:  Supported by the National Natural Science Foundation of China.

Abstract: In this paper, the structure of the wide resonance θ (1720) produced in J/ψ radiative decays is studied by using the moment analysis. Since the f2'(1525) and θ (1720) resonances overlap in this mass region, two three-state coupling structure modes 2++ (f2'(1525)) + 0++ + 0++ and 2++(f2'(1525)) + 0++ + 2++ are discussed. This is helpful to make clear the structure of the wide resonance θ (1720),determine their masses,widths, spins and other important properties of the two resonance states, G(1590) and f2(1720).

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