Structure Analysis of the ι/η(1440)

BES Collaboration

Chinese Physics C> 1997, Vol. 21> Issue(3) : 275-285

Structure Analysis of the ι/η(1440)

BES Collaboration

Institute of High Energy Physics,The Chinese Acadamy of Scinces,Beijing 100039

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Abstract：
By an amplitudes analysis of the KKπ system in the J/ψ radiative decay to the K⁺K^－π⁰ and the K⁰_SK^±π⁺ final states,we find that there is one 0^－+ resonance (M=1467±3MeV,Γ=89±6MeV) and two 1⁺⁺ resonances (M=1435±3MeV,Γ=59±5MeV; M=1497±2MeV,Γ=44±7MeV),which are consistent with the η(1440),the f₁(1420),and the f₁(1510).

References

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D. SCHARRE, et al., Phys. Lett., 97B(1980)329..[2] Z. Bai et al., Phys. Rev. Lett., 65(1990)2507.[3] J. E. Augustin et al., Phys. Rev., D46(1922)1951.[4] D. F. Reeves et al., Phys. Rev., D34(1986)1960.[5] A. Birman et al., Phys. Rev. Lett., 61(1988)1557.[6] A. Ando et al , Phys. Rev. Left., 51(1986)1296.[7] T. Tsuru, in Proceeding of the Workshop on Hadmn Physics, at e+e- Collider, 1994, Beijing, P.34.[8] H. Aihara et al., Phys. Rev. Lett., 51(1986)2500.[9] H. Aihara et al., Phys. Rev, D38(1988)1.[10] D. A. Bauer et al., Phys. Rev., D48(1993)3976.[11] J. Z. Bai, et al., Nucl. Instr. and Meth. In Phys.Res, A344 (1994)319.[12] Aimin Ma, Yucan Zhu, Zhipeng Zheng, in Proceeding of the Workshop on Hadron physics at e+e- Collider,1994, Beijing, P.82.[13] 张霖, 郁宏, 沈齐兴, 高能物理与核物理, 19(1995)800.[14] F. James, M. Roos, CERN Prognam Library, D506, 1989.[15] Qlxing Shen, Hong Yu, Jilong Zhang, Phys. Rev., D48(1993)2129.[16] J. J. Becker, et al., Phys. Rev. Lett., 59(1987)186.

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BES Collaboration. Structure Analysis of the ι/η(1440)[J]. Chinese Physics C, 1997, 21(3): 275-285.

BES Collaboration. Structure Analysis of the ι/η(1440)[J]. Chinese Physics C, 1997, 21(3): 275-285. 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

Structure Analysis of the ι/η(1440)

BES Collaboration

Institute of High Energy Physics,The Chinese Acadamy of Scinces,Beijing 100039

Received Date: 1900-01-01
Accepted Date: 1900-01-01
Available Online: 1997-03-05

Abstract: By an amplitudes analysis of the KKπ system in the J/ψ radiative decay to the K⁺K^－π⁰ and the K⁰_SK^±π⁺ final states,we find that there is one 0^－+ resonance (M=1467±3MeV,Γ=89±6MeV) and two 1⁺⁺ resonances (M=1435±3MeV,Γ=59±5MeV; M=1497±2MeV,Γ=44±7MeV),which are consistent with the η(1440),the f₁(1420),and the f₁(1510).