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

Yu Hong; Shen Qixing; Zhu Yucan; Zheng Zhipeng; Cheng Zhengdong

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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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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[20]	Yu Hong , Shen Qixing , Wang Xiu . D-Wave Components of the Glueball Candidate θ/f₂ (1720) and a Possible Experimental Test. Chinese Physics C, 1989, 13(S4): 385-392.

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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 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).