| Autor: |
J.Z. Bai, Y. Ban, J.G. Bian, A.D. Chen, G.P. Chen, H.F. Chen, H.S. Chen, J.C. Chen, X.D. Chen, Y. Chen, Y.B. Chen, B.S. Cheng, X.Z. Cui, H.L. Ding, L.Y. Dong, Z.Z. Du, C.S. Gao, M.L. Gao, S.Q. Gao, J.H. Gu, S.D. Gu, W.X. Gu, Y.N. Guo, Z.J. Guo, S.W. Han, Y. Han, J. He, J.T. He, K.L. He, M. He, Y.K. Heng, G.Y. Hu, H.M. Hu, J.L. Hu, Q.H. Hu, T. Hu, G.S. Huang, X.P. Huang, Y.Z. Huang, C.H. Jiang, Y. Jin, X. Ju, Z.J. Ke, Y.F. Lai, P.F. Lang, C.G. Li, D. Li, H.B. Li, J. Li, J.C. Li, P.Q. Li, W. Li, W.G. Li, X.H. Li, X.N. Li, X.Q. Li, Z.C. Li, B. Liu, F. Liu, Feng Liu, H.M. Liu, J. Liu, J.P. Liu, R.G. Liu, Y. Liu, Z.X. Liu, G.R. Lu, F. Lu, J.G. Lu, X.L. Luo, E.C. Ma, J.M. Ma, H.S. Mao, Z.P. Mao, X.C. Meng, X.H. Mo, J. Nie, N.D. Qi, X.R. Qi, C.D. Qian, J.F. Qiu, Y.H. Qu, Y.K. Que, G. Rong, Y.Y. Shao, B.W. Shen, D.L. Shen, H. Shen, H.Y. Shen, X.Y. Shen, F. Shi, H.Z. Shi, X.F. Song, H.S. Sun, L.F. Sun, Y.Z. Sun, S.Q. Tang, G.L. Tong, F. Wang, L. Wang, L.S. Wang, L.Z. Wang, P. Wang, P.L. Wang, S.M. Wang, Y.Y. Wang, Z.Y. Wang, C.L. Wei, N. Wu, Y.G. Wu, D.M. Xi, X.M. Xia, Y. Xie, Y.H. Xie, G.F. Xu, S.T. Xue, J. Yan, W.G. Yan, C.M. Yang, C.Y. Yang, H.X. Yang, X.F. Yang, M.H. Ye, S.W. Ye, Y.X. Ye, C.S. Yu, C.X. Yu, G.W. Yu, Y.H. Yu, Z.Q. Yu, C.Z. Yuan, Y. Yuan, B.Y. Zhang, C. Zhang, C.C. Zhang, D.H. Zhang, Dehong Zhang, H.L. Zhang, J. Zhang, J.W. Zhang, L. Zhang, Lei Zhang, L.S. Zhang, P. Zhang, Q.J. Zhang, S.Q. Zhang, X.Y. Zhang, Y.Y. Zhang, D.X. Zhao, H.W. Zhao, Jiawei Zhao, J.W. Zhao, M. Zhao, W.R. Zhao, Z.G. Zhao, J.P. Zheng, L.S. Zheng, Z.P. Zheng, B.Q. Zhou, L. Zhou, K.J. Zhu, Q.M. Zhu, Y.C. Zhu, Y.S. Zhu, Z.A. Zhu, B.A. Zhuang, D.V. Bugg, B.S. Zou |
| Rok vydání: |
2000 |
| Předmět: |
|
| Zdroj: |
Physics Letters B. 476:25-32 |
| ISSN: |
0370-2693 |
| Popis: |
BES data on $J/\psi \to \gamma (K^{\pm} K_S^0 \pi^{\mp})$ are presented. There is a strong peak due to $\eta(1440)/\iota$, which is fitted with a Breit-Wigner amplitude with $s$-dependent widths for decays to $K^*K$, $\kappa K$, $\eta \pi\pi$ and $\rho\rho$; $\kappa$ refers to the $K\pi$ S-wave. At a $K\bar{K}\pi$ mass of $\sim 2040$ MeV, there is a second peak with width $\sim 400$ MeV; $J^P = 0^-$ is preferred over $1^+$ and $2^-$ respectively by 5.2 and 6.8 standard deviations. It is a possible candidate for a $0^-$ $s\bar sg$ hybrid partner of $\pi(1800)$. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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Full Text from ScienceDirect 