Chinese Physics C > 1993, Vol. 17 > Issue(11): 961-970

Moment Method for Spin Analysis of the Pseudoscalar Pair Produced in the Radiative J/ψ Decay

Institute of High Energy Physics,Academia Sinica,Beijing 100039

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Abstract：
The formalism and technique of the moment method for spin analysis of the boson X in J/ψ→γX,X→P ₁P ₂are presented.The analysis technique is cited to study the spin of θ(1720) with Monte Carlo data samples.One finds that the spin of the boson X can be effectively determined by the moment method.As an example,the technique is used to measure the spin of the resonances in the low mass region of J/ψ→γK ⁺K ^－channel at BES.It is found that the spin analysis strategy of the moment method is successful.

References

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CHEN Shenjian, YAN Wuguang and LI Weiguo. Moment Method for Spin Analysis of the Pseudoscalar Pair Produced in the Radiative J/ψ Decay[J]. Chinese Physics C, 1993, 17(11): 961-970.

CHEN Shenjian, YAN Wuguang and LI Weiguo. Moment Method for Spin Analysis of the Pseudoscalar Pair Produced in the Radiative J/ψ Decay[J]. Chinese Physics C, 1993, 17(11): 961-970. 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 Method for Spin Analysis of the Pseudoscalar Pair Produced in the Radiative J/ψ Decay

Corresponding author:CHEN Shenjian,

Institute of High Energy Physics,Academia Sinica,Beijing 100039

Received Date:1900-01-01
Accepted Date:1900-01-01
Available Online:1993-11-05

Abstract:The formalism and technique of the moment method for spin analysis of the boson X in J/ψ→γX,X→P₁P₂are presented.The analysis technique is cited to study the spin of θ(1720) with Monte Carlo data samples.One finds that the spin of the boson X can be effectively determined by the moment method.As an example,the technique is used to measure the spin of the resonances in the low mass region of J/ψ→γK⁺K^－channel at BES.It is found that the spin analysis strategy of the moment method is successful.