Determining the Spin and Parity of Particle X for the Process J/ψ→V1,X→V2+V3 by Using the Generalized Moment Analysis Method

SHEN Qi-Xing; YU Hong

Chinese Physics C> 1993, Vol. 17> Issue(6) : 503-510

Determining the Spin and Parity of Particle X for the Process J/ψ→V₁,X→V₂+V₃ by Using the Generalized Moment Analysis Method

SHEN Qi-Xing ^, ,
YU Hong

Institute of High Energy Physics,Academia Sinica,Beijing 100039

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Abstract：
The hadronic decay process J/ψ→V₁+X,X→V₂+V₃,V₂、V₃→2P or 3P(V_i and P stand for vector and pseudoscalar meson,respectively)has been discussed by using the generalized moment analysis method in this paper.The formulas of moment corresponding to the intermediate state X with various spin-parity have been presented.The values of helicity amplitudes for the process X→V₂+V₃ 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 values and data of some moments.

References

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D.U. L. Scharre et al.，Phys. Lett.，97B( 1980) , 329.[2]C. Edwards et al.，Phys. Rev. Lett.，48(1982),458.[3]K. F. Einsweiler, SLAC-PUB-3202(1983);R. M. Baltrusaitis et al.，Phys. Pev. Lett.，56(1986),107.[4]沈齐兴，高能物理与核物理，15(1991),358.[5]M. S. Chanowitz and S. R, Sharpe,nucl.Phys., B222(1983).211;Phys. Iett.，132B(1983)，413; B. A. Liand K. F. Liu phys. Rev，D32(1985)，308; S. Pakvasa et al. Phys,Lett.，145B(1984)，134; K. T.Chao, Phys. Rev. lett.，60(1988),2579.[6]A. Etkin et al.，Phys. Rev. Lett.，49(1982)，1620 .Phys,Lett.，165B (1985 ) , 217; Phys. Lett.，201B(1988),568[7]Z. Bai et al.，Phys. Rev. Lett.，65(1990),1309.[8]D. Bisello et al.，Phys. Lett.，179(1986),294;Phys. Lett.，241B(1990),617.[9]R. Sinha et al.，Phys. Rev.，D35(1987),952.[10]沈齐兴、郁宏，高能物理与核物理,16(1992),919.[11]Liang-Ping Chen, SLAC-Report-386(1991).[12]M. Jacob and G. C. Wick, Anals of Physics, 7(1959),404.

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SHEN Qi-Xing and YU Hong. Determining the Spin and Parity of Particle X for the Process J/ψ→V₁,X→V₂+V₃ by Using the Generalized Moment Analysis Method[J]. Chinese Physics C, 1993, 17(6): 503-510.

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Received: 1900-01-01
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

Determining the Spin and Parity of Particle X for the Process J/ψ→V₁,X→V₂+V₃ by Using the Generalized Moment Analysis Method

SHEN Qi-Xing ^,
YU Hong

Corresponding author: SHEN Qi-Xing,

Institute of High Energy Physics,Academia Sinica,Beijing 100039

Received Date: 1900-01-01
Accepted Date: 1900-01-01
Available Online: 1993-06-05

Abstract: The hadronic decay process J/ψ→V₁+X,X→V₂+V₃,V₂、V₃→2P or 3P(V_i and P stand for vector and pseudoscalar meson,respectively)has been discussed by using the generalized moment analysis method in this paper.The formulas of moment corresponding to the intermediate state X with various spin-parity have been presented.The values of helicity amplitudes for the process X→V₂+V₃ 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 values and data of some moments.