Determination of the Spin-parity of the Particle X for the Process J/ψ V1+X, X→V2+V3 by Using the Generalized Moment Analysis

Shen Qixing; Yu Hong

Chinese Physics C> 1993, Vol. 17> Issue(S2) : 117-124

Determination of the Spin-parity of the Particle X for the Process J/ψ V₁+X, X→V₂+V₃ by Using the Generalized Moment Analysis

Shen Qixing ,
Yu Hong

Institute of High Energy Physics, Chinese Academy of Science, Beijing, China

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The hadronic decay process of J/ψ, J/ψ→V₁+ X, X→V₂ + V₃, V₂, V₃→2P or 3P (where V_i and P represent the massive vector and pseudoscalar mesons, respectively), is discussed by using the generalized moment analysis in this paper. The corresponding moment formulae for the intermediate state X with various spin-parity are presented. The values of helicity amplitudes for the X→V₂ + V₃ process are calculated in the nonrelativistic case. The spin, parity and partial wave state of the intermediate particle X can be determined by comparing the theoretical moments with the data.

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Shen Qixing and Yu Hong. Determination of the Spin-parity of the Particle X for the Process J/ψ V₁+X, X→V₂+V₃ by Using the Generalized Moment Analysis[J]. Chinese Physics C, 1993, 17(S2): 117-124.

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Received: 1992-05-13

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Supported by the National Natural Science Foundation of China and the Grant LWTZ-1298 from the Chinese Academy of Sciences.

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Determination of the Spin-parity of the Particle X for the Process J/ψ V₁+X, X→V₂+V₃ by Using the Generalized Moment Analysis

Shen Qixing
Yu Hong

Institute of High Energy Physics, Chinese Academy of Science, Beijing, China

Received Date: 1992-05-13

Fund Project: Supported by the National Natural Science Foundation of China and the Grant LWTZ-1298 from the Chinese Academy of Sciences.

Abstract: The hadronic decay process of J/ψ, J/ψ→V₁+ X, X→V₂ + V₃, V₂, V₃→2P or 3P (where V_i and P represent the massive vector and pseudoscalar mesons, respectively), is discussed by using the generalized moment analysis in this paper. The corresponding moment formulae for the intermediate state X with various spin-parity are presented. The values of helicity amplitudes for the X→V₂ + V₃ process are calculated in the nonrelativistic case. The spin, parity and partial wave state of the intermediate particle X can be determined by comparing the theoretical moments with the data.