ar X iv : h ep - e x / 06 10 07 9 v 2 1 9 Ja n 20 07 1 Measurements of ψ ( 2 S ) decays to octet baryon - antibaryon pairs
نویسندگان
چکیده
M. Ablikim, J. Z. Bai, Y. Ban, X. Cai, H. F. Chen, H. S. Chen, H. X. Chen, J. C. Chen, Jin Chen, Y. B. Chen, Y. P. Chu, Y. S. Dai, L. Y. Diao, Z. Y. Deng, Q. F. Dong, S. X. Du, J. Fang, S. S. Fang, C. D. Fu, C. S. Gao, Y. N. Gao, S. D. Gu, Y. T. Gu, Y. N. Guo, Z. J. Guo, F. A. Harris, K. L. He, M. He, Y. K. Heng, J. Hou, H. M. Hu, J. H. Hu T. Hu, X. T. Huang, X. B. Ji, X. S. Jiang, X. Y. Jiang, J. B. Jiao, D. P. Jin, S. Jin, Y. F. Lai, G. Li, H. B. Li, J. Li, R. Y. Li, S. M. Li, W. D. Li, W. G. Li, X. L. Li, X. N. Li, X. Q. Li, Y. F. Liang, H. B. Liao, B. J. Liu, C. X. Liu, F. Liu, Fang Liu, H. H. Liu, H. M. Liu, J. Liu, J. B. Liu, J. P. Liu, Jian Liu Q. Liu, R. G. Liu, Z. A. Liu, Y. C. Lou, F. Lu, G. R. Lu, J. G. Lu, C. L. Luo, F. C. Ma, H. L. Ma, L. L. Ma, Q. M. Ma, Z. P. Mao, X. H. Mo, J. Nie, S. L. Olsen, R. G. Ping, N. D. Qi, H. Qin, J. F. Qiu, Z. Y. Ren, G. Rong, X. D. Ruan L. Y. Shan, L. Shang, C. P. Shen, D. L. Shen, X. Y. Shen, H. Y. Sheng, H. S. Sun, S. S. Sun, Y. Z. Sun, Z. J. Sun, X. Tang, G. L. Tong, G. S. Varner, D. Y. Wang , L. Wang, L. L. Wang, L. S. Wang, M. Wang, P. Wang, P. L. Wang, Y. F. Wang, Z. Wang, Z. Y. Wang, Zheng Wang, C. L. Wei, D. H. Wei, U. Wiedner, Y. Weng, N. Wu, X. M. Xia, X. X. Xie, G. F. Xu, X. P. Xu, Y. Xu, M. L. Yan, H. X. Yang, Y. X. Yang, M. H. Ye, Y. X. Ye, G. W. Yu, C. Z. Yuan, Y. Yuan, S. L. Zang, Y. Zeng, B. X. Zhang, B. Y. Zhang, C. C. Zhang, D. H. Zhang, H. Q. Zhang, H. Y. Zhang, J. W. Zhang, J. Y. Zhang, S. H. Zhang, X. Y. Zhang, Yiyun Zhang, Z. X. Zhang , Z. P. Zhang, D. X. Zhao, J. W. Zhao, M. G. Zhao, P. P. Zhao, W. R. Zhao, Z. G. Zhao, H. Q. Zheng, J. P. Zheng, Z. P. Zheng, L. Zhou, K. J. Zhu, Q. M. Zhu, Y. C. Zhu, Y. S. Zhu, Z. A. Zhu, B. A. Zhuang, X. A. Zhuang, B. S. Zou
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The role of power corrections and higher Fock-state contributions to exclusive charmonium decays will be discussed. It will be argued that the J/ψ (ψ′) decays into baryon-antibaryon pairs are dominated by the valence Fock-state contributions. P -wave charmonium decays, on the other hand, receive strong contributions from the ccg Fock states since the valence Fock-state contributions are suppres...
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