Chinese Physics C > 1992, Vol. 16 > Issue(S3): 267-276

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

Institute of High Energy Physics, the Chinese Academy Sciences. Beijing, China

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In this paper, the structure of the wide resonance θ(1720) produced in J/ ψradiative decays is studied by using the moment analysis. Since the f ₂'(1525) and θ(1720) resonances overlap in this mass region, two three-state coupling structure modes 2 ⁺⁺(f ₂'(1525)) + 0 ⁺⁺+ 0 ⁺⁺and 2 ⁺⁺(f ₂'(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 f ₂(1720).

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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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沈阳化工大学材料科学与工程学院沈阳 110142

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

Institute of High Energy Physics, the Chinese Academy Sciences. Beijing, China

Received Date:1991-11-29

Fund Project:Supported by the National Natural Science Foundation of China.

Abstract:In this paper, the structure of the wide resonanceθ(1720) produced in J/ψradiative decays is studied by using the moment analysis. Since the f₂'(1525) andθ(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 resonanceθ(1720),determine their masses,widths, spins and other important properties of the two resonance states, G(1590) and f₂(1720).