Moment Analysis of the wide Resonance θ(1720) in J/ψ Radiative Decay

YU Hong; SHEN Qi-Xing; ZHU Yu-Can; ZHENG Zhi-Ping; CHENG Zheng-Dong

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2024年10月30日

Chinese Physics C> 1992, Vol. 16> Issue(9) : 807-815

Moment Analysis of the wide Resonance θ(1720) in J/ψ Radiative Decay

Institute of High Energy Physics,Academia Sinica,Beijing 100039

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Abstract：
In this paper the structure of the wide resonance θ(1720) produced in J/ψ radiative decay is studied by using moment analysis.Since the f'₂(1525) and θ(1720) resonances overlap in this mass region,two three-states coupling structure modes 2⁺⁺(f'₂(1525))+0⁺⁺+0⁺⁺ and 2⁺⁺(f'₂(1525))+0⁺⁺+2⁺⁺ are discussed.It is helpful to make clear the structure of the wide resonance θ(1720),de-termine masses、widths、spins and other important properties of the two resonance states,for example G(1590) and f₂(1720),including therein and understand the two interesting states better.

References

[1]

沈齐兴，高能物理与核物理，15(1991)， 358.及文中所列有关文献.[2] C. Edwards et al., Phys. Rev. Lett., 4B (1982), 458.[3] M. E. B. Franklin, Ph. D.Thesis, SLAC'Report 254(1982); D. L. Scharre Proc of the 10th Int. Symp.on Lepton and photon Interactions at High Energy, Bonn, 1981.[4] W. Toki, SLAG-PUB-3262(1983):K. F. Einsweiler, Ph. D. Thesis, SLAC Report 272(1984);R . M. Baltrusaitis, Phys. Rev., D35(1987), 2077.[5] J. E. Augustin et al., Orsay preprint, LAL 85-27, (1985);F. Couchot, Ph. D. Thesis, Orsay Preprint, LAL 87-55, (1987);J. E. Augustin et al., Phys. Rev. Lett., 60(1988), 2238.[6] G. Eigen CALT-68-1483(1988).[7] L. Kopke, Proc. of the 23rd Int. Conf. on HEP. Berkeley, July, 1986;A. Falvard et al., Phys. Rev., D38(198P), 2706,[8] R. Longacre, Proc. 2nd IntCodf. on Had. Spear. at KEK, p. 46(1987).[9] T. A. Armstrong et al., CERN/FP 89-70(1989).T. Bolton, Ph. D, thesis, Massachusetts Institute of Tecnolegy (1988)[11] S, U. Chung, CERN COURIER 28(1988),No.10, p. 25.[12] F. Binon et al., Nuovo Cim., 78A (1983), 313; D. Alde et al., Nucl. Phys., B269 (1986), 485;S. S. Gershtein et al., Z. Phys., C24 (1984), 305.[13] 郁宏，高能物理与核物理，14(1990)，286,[14] L. P. Chen et al., SLAC-PUB-378 (1990).[15] P. K. Kabir and A. J. G. Hey, Phys. Rev., D13 (1976), 3161.

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YU Hong, SHEN Qi-Xing, ZHU Yu-Can, ZHENG Zhi-Ping and CHENG Zheng-Dong. Moment Analysis of the wide Resonance θ(1720) in J/ψ Radiative Decay[J]. Chinese Physics C, 1992, 16(9): 807-815.

YU Hong, SHEN Qi-Xing, ZHU Yu-Can, ZHENG Zhi-Ping and CHENG Zheng-Dong. Moment Analysis of the wide Resonance θ(1720) in J/ψ Radiative Decay[J]. Chinese Physics C, 1992, 16(9): 807-815. 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 the wide Resonance θ(1720) in J/ψ Radiative Decay

Corresponding author: YU Hong,

Institute of High Energy Physics,Academia Sinica,Beijing 100039

Received Date: 1900-01-01
Accepted Date: 1900-01-01
Available Online: 1992-09-05

Abstract: In this paper the structure of the wide resonance θ(1720) produced in J/ψ radiative decay is studied by using moment analysis.Since the f'₂(1525) and θ(1720) resonances overlap in this mass region,two three-states coupling structure modes 2⁺⁺(f'₂(1525))+0⁺⁺+0⁺⁺ and 2⁺⁺(f'₂(1525))+0⁺⁺+2⁺⁺ are discussed.It is helpful to make clear the structure of the wide resonance θ(1720),de-termine masses、widths、spins and other important properties of the two resonance states,for example G(1590) and f₂(1720),including therein and understand the two interesting states better.