Comments on the Ratio of Hadronic Decay Rates of ψ(2S)to J/ψ

Li Xinhua; Gu Yifan

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2024年10月30日

Chinese Physics C> 1998, Vol. 22> Issue(4) : 293-298

Comments on the Ratio of Hadronic Decay Rates of ψ(2S)to J/ψ

Li Xinhua ^, ,
Gu Yifan

Institute of High Energy Physic,Chinese Academy of Sciences, Beijing 100039

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Abstract：
The perturbative QCD prediction of “15% rule” for the ratio of ψ(2S) to J/ψ hadronic decay rates suffers seveal apparent approximations. Calculations using existing experimental data are made in this paper; further corrections to this radio for a number of exclusive decay channels are also discussed.

References

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[14]	BES Collaboration . Abnormal Suppression of Vector-Tensor Decays of ψ(2S). Chinese Physics C, 1997, 21(1): 89-96.
[15]	BES Collaboration . Determination of J/ψ Leptonic Branching Fraction Via ψ(2S)→π⁺π^－J/ψ. Chinese Physics C, 1996, 20(2): 97-106.
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Li Xinhua and Gu Yifan. Comments on the Ratio of Hadronic Decay Rates of ψ(2S)to J/ψ[J]. Chinese Physics C, 1998, 22(4): 293-298.

Li Xinhua and Gu Yifan. Comments on the Ratio of Hadronic Decay Rates of ψ(2S)to J/ψ[J]. Chinese Physics C, 1998, 22(4): 293-298. shu

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

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Comments on the Ratio of Hadronic Decay Rates of ψ(2S)to J/ψ

Li Xinhua ^,
Gu Yifan

Corresponding author: Li Xinhua,

Institute of High Energy Physic,Chinese Academy of Sciences, Beijing 100039

Received Date: 1900-01-01
Accepted Date: 1900-01-01
Available Online: 1998-04-05

Abstract: The perturbative QCD prediction of “15% rule” for the ratio of ψ(2S) to J/ψ hadronic decay rates suffers seveal apparent approximations. Calculations using existing experimental data are made in this paper; further corrections to this radio for a number of exclusive decay channels are also discussed.