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Partial wave analysis of J/psi -> p(p)over-bar pi(0)

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成果类型:
期刊论文
作者:
Ablikim, M.*;Bai, J. Z.;Bai, Y.;Ban, Y.;Cai, X.;...
通讯作者:
Ablikim, M.
作者机构:
[Chen, H. X.; Mao, Z. P.; Sun, H. S.; Gao, C. S.; Guo, Y. N.; Lu, J. G.; Sun, S. S.; Fu, C. D.; Chen, Y. B.; Zhao, D. X.; Gu, S. D.; Hu, T.; Xia, X. M.; Liu, J.; Zhao, M. G.; Wang, Z.; Zhang, B. X.; Liu, Fang; Sun, Z. J.; Zhang, C. C.; Zhu, X. W.; Li, W. G.; Mo, X. H.; Zheng, Z. P.; Zhong, B.; Zhou, L.; Qi, N. D.; Zhang, D. H.; Fang, J.; Li, J.; Wang, J. X.; Yuan, C. Z.; Li, R. Y.; Shen, X. Y.; Zheng, J. P.; Zhu, Y. S.; Li, X. N.; Zhang, B. Y.; Jiang, X. S.; Zhang, H. Y.; Wang, L.; Liu, R. G.; Hu, H. M.; Wang, P. L.; Tong, G. L.; Zhang, H. Q.; Zhu, Z. A.; Xu, G. F.; Huang, G. S.; Lu, F.; Heng, Y. K.; Nie, J.; Zhang, J. W.; Rong, G.; Yuan, Y.; Li, X. L.; Chu, Y. P.; Li, L.; Sun, Y. Z.; Liu, B. J.; Zhao, P. P.; Zhu, Q. M.; Tian, J. P.; Wang, Y. F.; Wei, C. L.; Zhu, K. J.; Liu, H. M.; Li, H. B.; Wang, L. L.; Jin, D. P.; Zheng, B.; Chen, Jin; Sheng, H. Y.; Yang, M.; Huang, Y. P.; Zhang, J. Y.; Zou, B. S.; Chen, H. S.; Ji, X. B.; Wang, L. S.; Shang, L.; Shan, L. Y.; Jin, S.; Wang, P.; Deng, Z. Y.; Ma, Q. M.; Tang, X.; Yang, H. X.; Wang, Z. Y.; Malik, M. Q. A.; Liu, Z. A.; Li, G.; Li, S. M.; Cai, X.; He, K. L.; Ping, R. G.; Qiu, J. F.; Zhuang, B. A.; Zhao, J. W.; Chen, J. C.; Ablikim, M.; Liu, C. X.; Wan, X.; Wu, N.; Bai, Y.; Li, W. D.; Bai, J. Z.; Du, S. X.] Inst High Energy Phys, Beijing 100049, Peoples R China.
[Ye, M. H.; Ma, H. L.] China Ctr Adv Sci & Technol, Beijing 100080, Peoples R China.
[Zhu, Z. L.; Yang, Y. X.; Wei, D. H.] Guangxi Normal Univ, Guilin 541004, Peoples R China.
[Liu, H. B.; Ruan, X. D.; Gu, Y. T.] Guangxi Univ, Nanning 530004, Peoples R China.
[Lu, G. R.; Chen, X. D.] Henan Normal Univ, Xinxiang 453002, Peoples R China.
通讯机构:
[Ablikim, M.] I
Inst High Energy Phys, Beijing 100049, Peoples R China.
语种:
英文
期刊:
PHYSICAL REVIEW D
ISSN:
2470-0010
年:
2009
卷:
80
期:
5
基金类别:
National Natural Science Foundation of China [10491300, 10225524, 10225525, 10425523, 10625524, 10521003, 10821063, 10825524, 10775077, 10225522]; Chinese Academy of Sciences [KJ 95T-03]; 100 Talents Program of CAS [U-11, U-24, U-25]; Knowledge Innovation Project of CAS [U-602, U-34]; Department of Energy [DE-FG02-04ER41291]
机构署名:
本校为其他机构
摘要:
Using a sample of 58 million J/psi events collected with the BESII detector at the BEPC, more than 100 000 J/psi -> p (p) over bar pi(0) events are selected, and a detailed partial wave analysis is performed. The branching fraction is determined to be Br(J/psi -> p (p) over bar pi(0)) = (1.33 +/- 0.02 +/- 0.11) x 10(-3). A long-sought missing N*, first observed in J/psi -> p (n) over bar pi(-), is observed in this decay too, with mass and width of 2040(-4)(+3) +/- 25 MeV/c(2) and 230(-8)(+8) +/- 52 MeV/c(2), respectively. Its spin-parity favors 3+/2. The mass...

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