Chinese Physics C > 1997, Vol. 21 > Issue(5): 408-412

Moment Analysis of J/ψ Decay Processes and Comparison of Results in Two Frames

Institute of High Energy Physics,The Chinese Academy of Sciences, Beijing 100039

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The density matrices of J/ψ produced in the non-polarized e ⁺－e ^－collisions in both experimental laboratory and helicity frame are discussed. The results show that rthe conclkusion for only J/ψ with the helicity ±1 having contributions to the procss is correct only in the experimental laboratory frame under some conditions. The number of the moments is the same and there is a simple relation between the moments in the two frames.

References

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Shen Qixing, Chao Ming and Yu Hong. Moment Analysis of J/ψ Decay Processes and Comparison of Results in Two Frames[J]. Chinese Physics C, 1997, 21(5): 408-412.

Shen Qixing, Chao Ming and Yu Hong. Moment Analysis of J/ψ Decay Processes and Comparison of Results in Two Frames[J]. Chinese Physics C, 1997, 21(5): 408-412. shu

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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

Moment Analysis of J/ψ Decay Processes and Comparison of Results in Two Frames

Corresponding author:Shen Qixing,

Institute of High Energy Physics,The Chinese Academy of Sciences, Beijing 100039

Received Date:1900-01-01
Accepted Date:1900-01-01
Available Online:1997-05-05

Abstract:The density matrices of J/ψ produced in the non-polarized e⁺－e^－collisions in both experimental laboratory and helicity frame are discussed. The results show that rthe conclkusion for only J/ψ with the helicity ±1 having contributions to the procss is correct only in the experimental laboratory frame under some conditions. The number of the moments is the same and there is a simple relation between the moments in the two frames.