Phys. Rev. D 76, 122002 (2007) [6 pages]
Direct measurements of the non-D[overline D] cross section sigmapsi(3770) --> non-D[overline D] at Ecm=3.773 GeV and the branching fraction for psi(3770)-->non-D[overline D]
Abstract
References (17)
Citing Articles
M. Ablikim, 1 J. Z. Bai, 1 Y. Ban, 11 X. Cai, 1 H. F. Chen, 15 H. S. Chen, 1 H. X. Chen, 1 J. C. Chen, 1 Jin Chen, 1 Y. B. Chen, 1 Y. P. Chu, 1 Y. S. Dai, 17 L. Y. Diao, 8 Z. Y. Deng, 1 Q. F. Dong, 14 S. X. Du, 1 J. Fang, 1 S. S. Fang, 1 C. D. Fu, 14 C. S. Gao, 1 Y. N. Gao, 14 S. D. Gu, 1 Y. T. Gu, 4 Y. N. Guo, 1 K. L. He, 1 M. He, 12 Y. K. Heng, 1 J. Hou, 10 H. M. Hu, 1 J. H. Hu, 3 T. Hu, 1 G. S. Huang, 1 X. T. Huang, 12 X. B. Ji, 1 X. S. Jiang, 1 X. Y. Jiang, 5 J. B. Jiao, 12 D. P. Jin, 1 S. Jin, 1 Y. F. Lai, 1 G. Li, 1 H. B. Li, 1 J. Li, 1 R. Y. Li, 1 S. M. Li, 1 W. D. Li, 1 W. G. Li, 1 X. L. Li, 1 X. N. Li, 1 X. Q. Li, 10 Y. F. Liang, 13 H. B. Liao, 1 B. J. Liu, 1 C. X. Liu, 1 F. Liu, 6 Fang Liu, 1 H. H. Liu, 1 H. M. Liu, 1 J. Liu, 11 J. B. Liu, 1 J. P. Liu, 16 Jian Liu, 1 Q. Liu, 1 R. G. Liu, 1 Z. A. Liu, 1 Y. C. Lou, 5 F. Lu, 1 G. R. Lu, 5 J. G. Lu, 1 C. L. Luo, 9 F. C. Ma, 8 H. L. Ma, 2 L. L. Ma, 1 Q. M. Ma, 1 Z. P. Mao, 1 X. H. Mo, 1 J. Nie, 1 R. G. Ping, 1 N. D. Qi, 1 H. Qin, 1 J. F. Qiu, 1 Z. Y. Ren, 1 G. Rong, 1 X. D. Ruan, 4 L. Y. Shan, 1 L. Shang, 1 D. L. Shen, 1 X. Y. Shen, 1 H. Y. Sheng, 1 H. S. Sun, 1 S. S. Sun, 1 Y. Z. Sun, 1 Z. J. Sun, 1 X. Tang, 1 G. L. Tong, 1 D. Y. Wang, 1 L. Wang, 1 L. L. Wang, 1 L. S. Wang, 1 M. Wang, 1 P. Wang, 1 P. L. Wang, 1 W. F. Wang, 1 Y. F. Wang, 1 Z. Wang, 1 Z. Y. Wang, 1 Zheng Wang, 1 C. L. Wei, 1 D. H. Wei, 1 Y. Weng, 1 N. Wu, 1 X. M. Xia, 1 X. X. Xie, 1 G. F. Xu, 1 X. P. Xu, 6 Y. Xu, 10 M. L. Yan, 15 H. X. Yang, 1 Y. X. Yang, 3 M. H. Ye, 2 Y. X. Ye, 15 G. W. Yu, 1 C. Z. Yuan, 1 Y. Yuan, 1 S. L. Zang, 1 Y. Zeng, 7 B. X. Zhang, 1 B. Y. Zhang, 1 C. C. Zhang, 1 D. H. Zhang, 1 H. Q. Zhang, 1 H. Y. Zhang, 1 J. W. Zhang, 1 J. Y. Zhang, 1 S. H. Zhang, 1 X. Y. Zhang, 12 Yiyun Zhang, 13 Z. X. Zhang, 11 Z. P. Zhang, 15 D. X. Zhao, 1 J. W. Zhao, 1 M. G. Zhao, 1 P. P. Zhao, 1 W. R. Zhao, 1 H. Q. Zheng, 11 J. P. Zheng, 1 Z. P. Zheng, 1 L. Zhou, 1 K. J. Zhu, 1 Q. M. Zhu, 1 Y. C. Zhu, 1 Y. S. Zhu, 1 Z. A. Zhu, 1 B. A. Zhuang, 1 X. A. Zhuang, 1 and B. S. Zou1
(BES Collaboration)
1Institute of High Energy Physics, Beijing 100049, People's Republic of China
2China Center for Advanced Science and Technology, Beijing 100080, People's Republic of China
3Guangxi Normal University, Guilin 541004, People's Republic of China
4Guangxi University, Nanning 530004, People's Republic of China
5Henan Normal University, Xinxiang 453002, People's Republic of China
6Huazhong Normal University, Wuhan 430079, People's Republic of China
7Hunan University, Changsha 410082, People's Republic of China
8Liaoning University, Shenyang 110036, People's Republic of China
9Nanjing Normal University, Nanjing 210097, People's Republic of China
10Nankai University, Tianjin 300071, People's Republic of China
11Peking University, Beijing 100871, People's Republic of China
12Shandong University, Jinan 250100, People's Republic of China
13Sichuan University, Chengdu 610064, People's Republic of China
14Tsinghua University, Beijing 100084, People's Republic of China
15University of Science and Technology of China, Hefei 230026, People's Republic of China
16Wuhan University, Wuhan 430072, People's Republic of China
17Zhejiang University, Hangzhou 310028, People's Republic of China
Received 24 August 2007; published 14 December 2007
By analyzing the data collected at the center-of-mass energy Ecm=3.773 GeV and below the D[overline D] meson pair production threshold with the BES-II detector at the BEPC Collider, we directly measured the observed non-D[overline D] cross section of psi(3770) decay to be sigmapsi(3770) --> non-D[overline D]obs=(0.95±0.35±0.29) nb at Ecm=3.773 GeV, and the branching fraction BF[psi(3770)-->non-D[overline D]]=(13.4±5.0±3.6)% for inclusive non-D[overline D] decay of psi(3770). We also determined the cross section for D[overline D] meson pair production to be sigmaD[overline D]obs=(6.12±0.37±0.23) nb at Ecm=3.773 GeV.
©2007 The American Physical Society
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