Search For Psi(3770) -> Charmless Final States Involving Eta Or Pi(0) Mesons

M. Ablikim,L. An,J. Z. Bai,Y. Bai,Y. Ban,X. Cai,H. F. Chen,H. S. Chen,H. X. Chen,J. C. Chen,J. Chen,X. D. Chen,Y. B. Chen,Y. P. Chu,Y. S. Dai,Z. Y. Deng,S. X. Du,J. Fang,C. D. Fu,C. S. Gao,Y. N. Gao,S. D. Gu,Y. T. Gu,Y. N. Guo,K. L. He,M. He,Y. K. Heng,H. M. Hu,T. Hu,G. S. Huang,X. T. Huang,Y. P. Huang,X. B. Ji,L. L. Jiang,X. S. Jiang,J. B. Jiao,D. P. Jin,S. Jin,G. Li,H. B. Li,J. Li,L. Li,R. Y. Li,W. D. Li,W. G. Li,X. L. Li,X. N. Li,X. Q. Li,Y. F. Liang,B. J. Liu,C. X. Liu,Fang Liu,Feng Liu,H. M. Liu,J. P. Liu,H. B. Liu,J. Liu,R. G. Liu,S. Liu,Z. A. Liu,F. Lu,G. R. Lu,J. G. Lu,C. L. Luo,F. C. Ma,H. L. Ma,Q. M. Ma,M. Q. A. Malik,Z. P. Mao,X. H. Mo,J. Nie,R. G. Ping,N. D. Qi,J. F. Qiu,G. Rong,X. D. Ruan,L. Y. Shan,L. Shang,X. Y. Shen,H. Y. Sheng,H. S. Sun,S. S. Sun,Y. Z. Sun,Z. J. Sun,X. Tang,J. P. Tian,G. L. Tong,X. Wan,L. Wang,L. L. Wang,L. S. Wang,P. Wang,P. L. Wang,Y. F. Wang,Z. Wang,Z. Y. Wang,C. L. Wei,D. H. Wei,N. Wu,X. M. Xia,G. F. Xu,X. P. Xu,Y. Xu,M. L. Yan,H. X. Yang,M. Yang,Y. X. Yang,M. H. Ye,Y. X. Ye,C. X. Yu,C. Z. Yuan,Y. Yuan,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,X. Y. Zhang,Y. Y. Zhang,Z. X. Zhang,Z. P. Zhang,D. X. Zhao,J. W. Zhao,M. G. Zhao,P. P. Zhao,B. Zheng,H. Q. Zheng,J. P. Zheng,Z. P. Zheng,B. Zhong,L. Zhou,K. J. Zhu,Q. M. Zhu,X. W. Zhu,Y. S. Zhu,Z. A. Zhu,Z. L. Zhu,B. A. Zhuang,B. S. Zou

EUROPEAN PHYSICAL JOURNAL C（2010）

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摘要

We search for psi(3770) -> pi(+)pi(-)eta, K+K- eta, p (p) over bar eta. rho(0)pi(+)pi(-)eta, K+K- pi(+)pi(-)eta, p (p) over bar pi(+)pi(-)eta, p (p) over barK(+)K(-)eta and p (p) over barK(+)K(-) pi(0) using data samples of 17.3 and 6.5 pb(-1) integrated luminosities recorded at the center-of-mass energies of 3.773 and 3.65 GeV, respectively, by the BES-II detector operating at the BEPC collider. We obtain cross section measurements at both energies and upper limits on psi(3770) decay branching fractions to the final states studied.

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