Chinese Physics C > 2006, Vol. 30 > Issue(8): 724-730

Pseudoscalar-Meson Mixing in ψ(2S)→VP Decays

Institute of High Energy Physics, CAS, Beijing 100049, China2 CCASTWorld Laboratory, Beijing 100080, China3 Henan Normal University, Xinxiang 453002, China

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Abstract：
Based on the branching ratios of ψ(2S)→VP given by the BES collaboration, we make a new analysis to study the mixing of pseudoscalars. The mixing angle of η and η _p, θ _pis determined to be (－7.54±1.52)° which is consistent with the value obtained from quadratic Gell-Mann-Okubo formula. From this work we also know that the strength of DOZI to SOZI is about 14% in ψ(2S)→VP, and the phase angle of electromagnetic amplitude to strong amplitude is (156±89)°.

References

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JIANG Xing-Yu, FANG Shuang-Shi, ZHU Yu-Can and LU Gong-Ru. Pseudoscalar-Meson Mixing in ψ(2S)→VP Decays[J]. Chinese Physics C, 2006, 30(8): 724-730.

JIANG Xing-Yu, FANG Shuang-Shi, ZHU Yu-Can and LU Gong-Ru. Pseudoscalar-Meson Mixing in ψ(2S)→VP Decays[J]. Chinese Physics C, 2006, 30(8): 724-730. shu

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Received: 2005-12-17
Revised: 2006-03-13

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沈阳化工大学材料科学与工程学院沈阳 110142

Pseudoscalar-Meson Mixing in ψ(2S)→VP Decays

Corresponding author:JIANG Xing-Yu,

Institute of High Energy Physics, CAS, Beijing 100049, China2 CCASTWorld Laboratory, Beijing 100080, China3 Henan Normal University, Xinxiang 453002, China

Received Date:2005-12-17
Accepted Date:2006-03-13
Available Online:2006-08-05

Abstract:Based on the branching ratios of ψ(2S)→VP given by the BES collaboration, we make a new analysis to study the mixing of pseudoscalars. The mixing angle of η and η_p, θ_pis determined to be (－7.54±1.52)° which is consistent with the value obtained from quadratic Gell-Mann-Okubo formula. From this work we also know that the strength of DOZI to SOZI is about 14% in ψ(2S)→VP, and the phase angle of electromagnetic amplitude to strong amplitude is (156±89)°.