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Phys. Rev. D 74, 072001 (2006) [10 pages]

Measurements of psi(2S) decays into gammaK[overline K]pi and gammaetapi+pi-

M. Ablikim,1 J. Z. Bai,1 Y. Ban,12 J. G. Bian,1 X. Cai,1 H. F. Chen,17 H. S. Chen,1 H. X. Chen,1 J. C. Chen,1 Jin Chen,1 Y. B. Chen,1 S. P. Chi,2 Y. P. Chu,1 X. Z. Cui,1 Y. S. Dai,19 L. Y. Diao,9 Z. Y. Deng,1 Q. F. Dong,15 S. X. Du,1 J. Fang,1 S. S. Fang,2 C. D. Fu,1 C. S. Gao,1 Y. N. Gao,15 S. D. Gu,1 Y. T. Gu,4 Y. N. Guo,1 Y. Q. Guo,1 Z. J. Guo,16 F. A. Harris,16 K. L. He,1 M. He,13 Y. K. Heng,1 H. M. Hu,1 T. Hu,1 G. S. Huang,1 X. T. Huang,13 X. B. Ji,1 X. S. Jiang,1 X. Y. Jiang,5 J. B. Jiao,13 D. P. Jin,1 S. Jin,1 Yi Jin,8 Y. F. Lai,1 G. Li,2 H. B. Li,1 H. H. 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,11 Y. L. Li,4 Y. F. Liang,14 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,12 J. B. Liu,1 J. P. Liu,18 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,10 F. C. Ma,9 H. L. Ma,1 L. L. Ma,1 Q. M. Ma,1 X. B. Ma,5 Z. P. Mao,1 X. H. Mo,1 J. Nie,1 S. L. Olsen,16 H. P. Peng,17 R. G. Ping,1 N. D. Qi,1 H. Qin,1 J. F. Qiu,1 Z. Y. Ren,1 G. Rong,1 L. Y. Shan,1 L. Shang,1 C. P. Shen,1 D. L. Shen,1 X. Y. Shen,1 H. Y. Sheng,1 H. S. Sun,1 J. F. Sun,1 S. S. Sun,1 Y. Z. Sun,1 Z. J. Sun,1 Z. Q. Tan,4 X. Tang,1 G. L. Tong,1 G. S. Varner,16 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 Zhe Wang,1 Zheng Wang,2 C. L. Wei,1 D. H. Wei,1 N. Wu,1 X. M. Xia,1 X. X. Xie,1 G. F. Xu,1 X. P. Xu,6 Y. Xu,11 M. L. Yan,17 H. X. Yang,1 Y. X. Yang,3 M. H. Ye,2 Y. X. Ye,17 Z. Y. Yi,1 G. W. Yu,1 C. Z. Yuan,1 J. M. Yuan,1 Y. Yuan,1 S. L. Zang,1 Y. Zeng,7 Yu Zeng,1 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. M. Zhang,1 X. Y. Zhang,13 Yiyun Zhang,14 Z. P. Zhang,17 D. X. Zhao,1 J. W. Zhao,1 M. G. Zhao,1 P. P. Zhao,1 W. R. Zhao,1 Z. G. Zhao,1 H. Q. Zheng,12 J. P. Zheng,1 Z. P. Zheng,1 L. Zhou,1 N. F. Zhou,1 K. J. Zhu,1 Q. M. Zhu,1 Y. C. Zhu,1 Y. S. Zhu,1 Yingchun 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 (CCAST), 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
8Jinan University, Jinan 250022, People's Republic of China
9Liaoning University, Shenyang 110036, People's Republic of China
10Nanjing Normal University, Nanjing 210097, People's Republic of China
11Nankai University, Tianjin 300071, People's Republic of China
12Peking University, Beijing 100871, People's Republic of China
13Shandong University, Jinan 250100, People's Republic of China
14Sichuan University, Chengdu 610064, People's Republic of China
15Tsinghua University, Beijing 100084, People's Republic of China
16University of Hawaii, Honolulu, Hawaii 96822, USA
17University of Science and Technology of China, Hefei 230026, People's Republic of China
18Wuhan University, Wuhan 430072, People's Republic of China
19Zhejiang University, Hangzhou 310028, People's Republic of China

Received 16 July 2006; published 4 October 2006

Radiative decays of the psi(2S) into gammaK[overline K]pi and gammaetapi+pi- final states are studied using 14×106 psi(2S) events collected with the BESII detector. Branching fractions or upper limits on the branching fractions of psi(2S) and chicJ decays are reported. No significant signal for eta(1405)/eta(1475) is observed in the K[overline K]pi or etapi+pi- mass spectra, and upper limits on the branching fractions of psi(2S)-->gammaeta(1405)/eta(1475), eta(1405)/eta(1475)-->K[overline K]pi, and etapi+pi- are determined.

©2006 The American Physical Society

URL: http://link.aps.org/doi/10.1103/PhysRevD.74.072001
DOI: 10.1103/PhysRevD.74.072001
PACS: 13.25.Gv
  • 13.25.Gv
    Hadronic decays of J/psi, Upsilon, and other quarkonia
  • YEAR: 2006

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