Measurement of the branching fractions for J/ψ→p¯pη and p¯pη′

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2009
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Abstract
Using 58×106 J/ψ events collected with the Beijing Spectrometer (BESII) at the Beijing Electron Positron Collider (BEPC), the branching fractions of J/ψ to pp¯η and pp¯η′ are determined. The ratio Γ(J/ψ→pp¯η)Γ(J/ψ→pp¯) obtained by this analysis agrees with expectations based on soft-pion theorem calculations.
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Authors M. Ablikim,J.Z. Bai,Y. Bai,Y. Ban,X. Cai,H.F. Chen,H.S. Chen,H.X. Chen,J.C. Chen,Jin 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,Z.J. Guo,F.A. Harris,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,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,Q. 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,S.L. Olsen,R.G. Ping,N.D. Qi,J.F. Qiu,G. Rong,X.D. Ruan,L.Y. Shan,L. Shang,C.P. Shen,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,G.S. Varner,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,Z.G. 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,BES Collaboration;M. Ablikim;J.Z. Bai;Y. Bai;Y. Ban;X. Cai;H.F. Chen;H.S. Chen;H.X. Chen;J.C. Chen;Jin 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;Z.J. Guo;F.A. Harris;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;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;Q. 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;S.L. Olsen;R.G. Ping;N.D. Qi;J.F. Qiu;G. Rong;X.D. Ruan;L.Y. Shan;L. Shang;C.P. Shen;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;G.S. Varner;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;Z.G. 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;BES Collaboration;
Journal physics letters b
Year 2009
DOI 10.1016/j.physletb.2009.04.066
URL
https://sciprofiles.com/publication/view/959e69e874f880ac6b8c4b927a0a0302
Keywords
http branching fractions xmlns math altimg mml scroll www.elsevier.com/xml/xocs/dtd www.w3.org/2001/xmlschema

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